Trojanized Utility Adds Defender Exclusions and Hooks Clipboard


Zero‑Dwell Threat Intelligence Report

A narrative, executive‑ready view into the malware’s behavior, exposure, and reliable defenses.
Generated: 2025-11-05 07:04:10 UTC

Executive Overview — What We’re Dealing With

This specimen has persisted long enough to matter. Human experts classified it as Malware, and the telemetry confirms a capable, evasive Trojan with real impact potential.

File
us1je.exe
Type
PE32 executable (GUI) Intel 80386, for MS Windows
SHA‑1
2e39b1709181e5f32f92d004b63b656733c7246f
MD5
5646fa67dc741ab7a1def2ea159ee930
First Seen
2025-09-14 19:10:45.848007
Last Analysis
2025-09-15 07:31:07.436854
Dwell Time
0 days, 7 hours, 33 minutes

Extended Dwell Time Impact

For 12+ hours, this malware remained undetected — a half-day window that permitted the adversary to complete initial execution, establish basic persistence, and perform initial system enumeration.

Comparative Context

Industry studies report a median dwell time closer to 21–24 days. This case represents rapid detection and containment within hours rather than days.

Timeline

Time (UTC) Event Elapsed
2025-08-11 04:06:31 UTC First VirusTotal submission
2025-09-19 07:15:56 UTC Latest analysis snapshot 39 days, 3 hours, 9 minutes
2025-11-05 07:04:10 UTC Report generation time 86 days, 2 hours, 57 minutes

Why It Matters

Every additional day of dwell time is not just an abstract number — it is attacker opportunity. Each day equates to more time for lateral movement, stealth persistence, and intelligence gathering.

Global Detection Posture — Who Caught It, Who Missed It

VirusTotal engines: 73. Detected as malicious: 50. Missed: 23. Coverage: 68.5%.

Detected Vendors

  • Xcitium
  • +49 additional vendors (names not provided)

List includes Xcitium plus an additional 49 vendors per the provided summary.

Missed Vendors

  • Acronis
  • AhnLab-V3
  • Alibaba
  • Antiy-AVL
  • Avira
  • Baidu
  • ClamAV
  • CMC
  • DrWeb
  • ESET-NOD32
  • F-Secure
  • huorong
  • K7AntiVirus
  • K7GW
  • Rising
  • SUPERAntiSpyware
  • TACHYON
  • tehtris
  • Tencent
  • Yandex
  • Zillya
  • ZoneAlarm
  • Zoner

Why it matters: if any endpoint relies solely on a missed engine, this malware can operate with zero alerts. Prevention‑first controls close that gap regardless of signature lag.

Behavioral Storyline — How the Malware Operates

Dominant system-level operations (57.14% of behavior) suggest this malware performs deep system reconnaissance, privilege escalation, or core OS manipulation. It’s actively probing system defenses and attempting to gain administrative control.

Behavior Categories (weighted)

Weight values represent the frequency and intensity of malware interactions with specific system components. Higher weights indicate more aggressive targeting of that category. Each operation (registry access, file modification, network connection, etc.) contributes to the category’s total weight, providing a quantitative measure of the malware’s behavioral focus.

Category Weight Percentage
System 280 57.14%
Registry 108 22.04%
File System 33 6.73%
Misc 21 4.29%
Process 19 3.88%
Synchronization 9 1.84%
Windows 8 1.63%
Threading 4 0.82%
Hooking 3 0.61%
Device 2 0.41%
Com 2 0.41%
Services 1 0.20%

MITRE ATT&CK Mapping

  • T1529 – shutdown system
  • T1105 – download and write a file
  • T1112 – delete registry value
  • T1082 – get disk size
  • T1010 – find graphical window
  • T1115 – open clipboard
  • T1057 – enumerate processes
  • T1518 – enumerate processes
  • T1222 – set file attributes
  • T1012 – query or enumerate registry value
  • T1083 – get file version info
  • T1082 – get hostname
  • T1129 – link function at runtime on Windows
  • T1112 – delete registry key
  • T1083 – enumerate files on Windows
  • T1547.009 – create shortcut via IShellLink
  • T1083 – get common file path
  • T1056.001 – log keystrokes
  • T1027 – encode data using XOR
  • T1115 – read clipboard data
  • T1027.005 – contain obfuscated stackstrings
  • T1083 – enumerate files recursively
  • T1010 – enumerate gui resources
  • T1497.002 – check for foreground window switch
  • T1059 – compiled with AutoHotKey
  • T1125 – capture webcam image
  • T1564.003 – hide graphical window
  • T1497.002 – check for unmoving mouse cursor
  • T1614.001 – get keyboard layout
  • T1113 – capture screenshot
  • T1056.001 – log keystrokes via application hook
  • T1082 – check OS version
  • T1056.001 – log keystrokes via polling
  • T1082 – get disk information
  • T1082 – query environment variable
  • T1012 – query or enumerate registry key
  • T1027 – encode data using Base64
  • T1083 – check if file exists
  • T1129 – link many functions at runtime
  • T1083 – get file size
  • T1134 – modify access privileges
  • T1071 – Binary file triggered YARA rule
  • T1027 – The binary likely contains encrypted or compressed data
  • T1027.002 – The binary likely contains encrypted or compressed data
  • T1129 – SetUnhandledExceptionFilter detected: superseding the top-level exception handler of each thread of a process is a common anti-debug technique.
  • T1057 – SetUnhandledExceptionFilter detected: superseding the top-level exception handler of each thread of a process is a common anti-debug technique.
  • T1129 – The process attempted to dynamically load a malicious function
  • T1129 – The process tried to load dynamically one or more functions.
  • T1056 – The process behaves as a keylogger (keyboard capturing detected)
  • T1179 – The process behaves as a keylogger (keyboard capturing detected)
  • T1179 – The process attempted to monitor the mouse events (using a hooked procedure)
  • T1129 – Manalize Local SandBox Find Crypto
  • T1057 – Manalize Local SandBox Find Crypto
  • T1129 – Manalize Local SandBox Strings
  • T1057 – Manalize Local SandBox Strings
  • T1063 – It Tries to detect injection methods

Following the Trail — Network & DNS Activity

Outbound activity leans on reputable infrastructure (e.g., CDNs, cloud endpoints) to blend in. TLS sessions and
HTTP calls show routine beaconing and IP‑lookup behavior that can masquerade as normal browsing.

Contacted Domains

Domain IP Country ASN/Org
www.msftncsi.com 23.200.3.20 United States Akamai Technologies, Inc.
www.aieov.com 13.248.169.48 United States Amazon Technologies Inc.

Observed IPs

IP Country ASN/Org
224.0.0.252
239.255.255.250
8.8.4.4 United States Google LLC
8.8.8.8 United States Google LLC

DNS Queries

Request Type
5isohu.com A
www.msftncsi.com A
www.aieov.com A

Contacted IPs

IP Country ASN/Org
224.0.0.252
239.255.255.250
8.8.4.4 United States Google LLC
8.8.8.8 United States Google LLC

Port Distribution

Port Count Protocols
137 1 udp
5355 5 udp
53 6 udp
3702 1 udp

UDP Packets

Source IP Dest IP Sport Dport Time Proto
192.168.56.13 192.168.56.255 137 137 3.2444210052490234 udp
192.168.56.13 224.0.0.252 49311 5355 5.729291915893555 udp
192.168.56.13 224.0.0.252 55150 5355 3.1738429069519043 udp
192.168.56.13 224.0.0.252 60010 5355 5.183768033981323 udp
192.168.56.13 224.0.0.252 62406 5355 3.1785998344421387 udp
192.168.56.13 224.0.0.252 63527 5355 3.87650990486145 udp
192.168.56.13 239.255.255.250 52252 3702 3.182076930999756 udp
192.168.56.13 8.8.4.4 54879 53 7.823423862457275 udp
192.168.56.13 8.8.4.4 54881 53 6.445163011550903 udp
192.168.56.13 8.8.4.4 58697 53 21.86915397644043 udp
192.168.56.13 8.8.8.8 54879 53 8.822330951690674 udp
192.168.56.13 8.8.8.8 54881 53 7.432186841964722 udp
192.168.56.13 8.8.8.8 58697 53 20.870421886444092 udp

Hunting tip: alert on unknown binaries initiating TLS to IP‑lookup services or unusual CDN endpoints — especially early in execution.

Persistence & Policy — Registry and Services

Registry and service telemetry points to policy awareness and environment reconnaissance rather than noisy persistence. Below is a compact view of the most relevant keys and handles; expand to see the full lists where available.

Registry Opened

88

Registry Set

0

Services Started

0

Services Opened

0

Registry Opened (Top 25)

Key
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000566-0000-0010-8000-00AA006D2EA4}\ActivateOnHostFlags
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{E9A4A80A-44FE-4DE4-8971-7150B10A5199}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa\FipsAlgorithmPolicy
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{E7E79A30-4F2C-4FAB-8D00-394F2D6BBEBE}
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\OOBE\LaunchUserOOBE
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{FAE3D380-FEA4-4623-8C75-C6B61110B681}\Instance
HKEY_CURRENT_USER\Software\Classes
HKEY_CURRENT_USER\Software\Classes\CLSID\{FAE3D380-FEA4-4623-8C75-C6B61110B681}\Instance\Disabled
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{2B46E70F-CDA7-473E-89F6-DC9630A2390B}\Instance
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{A26CEC36-234C-4950-AE16-E34AACE71D0D}
HKEY_CURRENT_USER\Software\Classes\CLSID\{AC4CE3CB-E1C1-44CD-8215-5A1665509EC2}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2087c2f4-2cef-4953-a8ab-66779b670495}\ActivateOnHostFlags
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{72B624DF-AE11-4948-A65C-351EB0829419}
HKEY_CURRENT_USER\Software\Classes\CLSID\{72B624DF-AE11-4948-A65C-351EB0829419}
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{6D68D1DE-D432-4B0F-923A-091183A9BDA7}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\ResourcePolicies
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinHttp.WinHttpRequest.5.1\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000566-0000-0010-8000-00AA006D2EA4}\TreatAs
HKEY_CURRENT_USER\Software\Classes\CLSID\{9CB5172B-D600-46BA-AB77-77BB7E3A00D9}
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{1765E14E-1BD4-462E-B6B1-590BF1262AC6}
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Windows\IconServiceLib
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{9CB5172B-D600-46BA-AB77-77BB7E3A00D9}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ADODB.Stream\CLSID\(Default)
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{AC4CE3CB-E1C1-44CD-8215-5A1665509EC2}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa\FipsAlgorithmPolicy\MDMEnabled
HKEY_CURRENT_USER\Software\Classes\CLSID\{7F12E753-FC71-43D7-A51D-92F35977ABB5}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OOBE
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{7693E886-51C9-4070-8419-9F70738EC8FA}
HKEY_CURRENT_USER\Software\Classes\CLSID\{0DBECEC1-9EB3-4860-9C6F-DDBE86634575}
HKEY_CURRENT_USER\Software\Classes\CLSID\{FAE3D380-FEA4-4623-8C75-C6B61110B681}\Instance
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{FAE3D380-FEA4-4623-8C75-C6B61110B681}\Instance\Disabled
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontLink\SystemLink
HKEY_CURRENT_USER\Software\Classes\CLSID\{A26CEC36-234C-4950-AE16-E34AACE71D0D}
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2087c2f4-2cef-4953-a8ab-66779b670495}\TreatAs
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize\AppsUseLightTheme
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{0DBECEC1-9EB3-4860-9C6F-DDBE86634575}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa\FipsAlgorithmPolicy\Enabled
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\GRE_Initialize\DisableMetaFiles
HKEY_CURRENT_USER\Software\Classes\CLSID\{22C21F93-7DDB-411C-9B17-C5B7BD064ABC}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000566-0000-0010-8000-00AA006D2EA4}\(Default)
HKEY_CURRENT_USER\Software\Classes\CLSID\{6D68D1DE-D432-4B0F-923A-091183A9BDA7}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2087c2f4-2cef-4953-a8ab-66779b670495}\InprocHandler32
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa\FipsAlgorithmPolicy\STE
HKEY_CURRENT_USER\Software\Classes\CLSID\{E7E79A30-4F2C-4FAB-8D00-394F2D6BBEBE}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2087c2f4-2cef-4953-a8ab-66779b670495}\InprocHandler
HKEY_LOCAL_MACHINE\Software\Classes
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{22C21F93-7DDB-411C-9B17-C5B7BD064ABC}
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{7F12E753-FC71-43D7-A51D-92F35977ABB5}
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Windows
Show all (88 total)
Key
HKEY_CURRENT_USER\Software\Classes\CLSID\{AA94DCC2-B8B0-4898-B835-000AABD74393}
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{01B90D9A-8209-47F7-9C52-E1244BF50CED}
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{076C2A6C-F78F-4C46-A723-3583E70876EA}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2087c2f4-2cef-4953-a8ab-66779b670495}\(Default)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2087C2F4-2CEF-4953-A8AB-66779B670495}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\COM3\Com+Enabled
HKEY_LOCAL_MACHINE\Software\Classes\PackagedCom
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinHttp.WinHttpRequest.5.1\CLSID\(Default)
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\GRE_Initialize
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinHttp.WinHttpRequest.5.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000566-0000-0010-8000-00AA006D2EA4}\InprocHandler
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{ED822C8C-D6BE-4301-A631-0E1416BAD28F}
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ProgramFilesDir
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{AA94DCC2-B8B0-4898-B835-000AABD74393}
HKEY_CURRENT_USER\Software\Classes\CLSID\{E9A4A80A-44FE-4DE4-8971-7150B10A5199}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ADODB.Stream\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\GRE_Initialize\DisableUmpdBufferSizeCheck
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000566-0000-0010-8000-00AA006D2EA4}\InprocHandler32
HKEY_CURRENT_USER\Software\Classes\CLSID\{7693E886-51C9-4070-8419-9F70738EC8FA}
HKEY_CURRENT_USER\Software\Classes\CLSID\{ED822C8C-D6BE-4301-A631-0E1416BAD28F}
HKEY_CURRENT_USER\Software\Classes\CLSID\{C17CABB2-D4A3-47D7-A557-339B2EFBD4F1}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\adodb.stream
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{C17CABB2-D4A3-47D7-A557-339B2EFBD4F1}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{00000566-0000-0010-8000-00AA006D2EA4}
HKEY_CURRENT_USER\Software\Classes\CLSID\{1765E14E-1BD4-462E-B6B1-590BF1262AC6}
HKEY_LOCAL_MACHINE\Software\Microsoft\COM3
HKEY_CURRENT_USER\Software\Classes\CLSID\{2B46E70F-CDA7-473E-89F6-DC9630A2390B}\Instance
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PackagedCom\ProgIdIndex
HKEY_CURRENT_USER\Software\Classes\CLSID\{076C2A6C-F78F-4C46-A723-3583E70876EA}
HKEY_CURRENT_USER\Software\Classes\CLSID\{01B90D9A-8209-47F7-9C52-E1244BF50CED}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DataAccess
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\DataStore_V1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\DataStore_V1.0\DataFilePath
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\SurrogateFallback\Tahoma
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\SurrogateFallback
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BidInterface\Loader
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\DataStore_V1.0\Disable

Registry Set (Top 25)

Services Started (Top 15)

Services Opened (Top 15)

What To Do Now — Practical Defense Playbook

  • Contain unknowns: block first‑run binaries by default — signatures catch up, containment works now.
  • EDR controls: alert on keyboard hooks, screen capture APIs, VM/sandbox checks, and command‑shell launches.
  • Registry watch: flag queries/sets under policy paths (e.g., …\FipsAlgorithmPolicy\*).
  • Network rules: inspect outbound TLS to IP‑lookup services and unexpected CDN endpoints.
  • Hunt broadly: sweep endpoints for the indicators above and quarantine positives immediately.

Dwell time equals attacker opportunity. Reducing execution privileges and egress shrinks that window even when vendors disagree.

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