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.

Extended Dwell Time Impact

For 1+ days, this malware remained undetected — a brief but concerning window that permitted the adversary to establish initial foothold, perform basic system enumeration, and potentially access immediate system resources.

Global Detection Posture — Who Caught It, Who Missed It

VirusTotal engines: 73. Detected as malicious: 56. Missed: 17. Coverage: 76.7%.

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

Significant process manipulation (90.93% of behavior) suggests code injection, process hollowing, or privilege escalation techniques. The malware is actively compromising running processes to hide its activities.

MITRE ATT&CK Mapping

• T1140 – decode data using Base64 in .NET
• T1012 – query or enumerate registry key
• T1490 – delete volume shadow copies
• T1070.004 – delete volume shadow copies
• T1027 – encode data using Base64
• T1562.001 – disable system features via registry on Windows
• T1547.001 – persist via Run registry key
• T1115 – monitor clipboard content
• T1083 – get file size
• T1115 – read clipboard data
• T1033 – get session user name
• T1087 – get session user name
• T1057 – enumerate process modules
• T1083 – check if file exists
• T1027 – encrypt data using AES via .NET
• T1083 – enumerate files in .NET
• T1083 – get common file path
• T1027 – encrypt data using RSA via WinAPI
• T1222 – set file attributes
• T1057 – enumerate processes
• T1518 – enumerate processes
• T1003 – Harvests information related to installed mail clients
• T1552 – Harvests information related to installed mail clients
• T1552.001 – Harvests information related to installed mail clients
• T1564 – A process created a hidden window
• T1202 – Uses suspicious command line tools or Windows utilities
• T1202 – Uses Windows utilities for basic functionality
• T1562 – Attempts to stop active services
• T1036 – A file was accessed within the Public folder.
• T1112 – Installs itself for autorun at Windows startup
• T1548 – A file was accessed within the Public folder.
• T1070 – Deletes executed files from disk
• T1070 – Clears Windows events or logs
• T1562.001 – Attempts to stop active services
• T1564.003 – A process created a hidden window
• T1543 – Attempts to stop active services
• T1547 – Installs itself for autorun at Windows startup
• T1543.003 – Attempts to stop active services
• T1547.001 – Installs itself for autorun at Windows startup
• T1114 – Harvests information related to installed mail clients
• T1005 – Harvests information related to installed mail clients
• T1489 – Attempts to stop active services
• T1486 – Creates a known MMLocker ransomware decryption instruction / key file.
• T1486 – Exhibits possible ransomware or wiper file modification behavior: mass_file_deletion overwrites_existing_files
• T1485 – Clears Windows events or logs
• T1485 – Anomalous file deletion behavior detected (10+)
• T1490 – Modifies boot configuration settings
• T1082 – Checks available memory
• T1071 – Yara detections observed in process dumps, payloads or dropped files
• T1071 – At least one IP Address, Domain, or File Name was found in a crypto call
• T1071 – Reads from the memory of another process
• T1071 – Terminates another process
• T1071 – Binary file triggered YARA rule
• T1071 – Dynamic (imported) function loading detected
• T1106 – Guard pages use detected – possible anti-debugging.
• T1106 – Created a process from a suspicious location
• T1059 – Modifies boot configuration settings
• T1059 – Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
• T1497 – Allocates memory with a write watch (potentially for evading sandboxes)
• T1497 – May sleep (evasive loops) to hinder dynamic analysis
• T1562.001 – Contains functionality to disable the Task Manager (.Net Source)
• T1562.001 – Creates guard pages, often used to prevent reverse engineering and debugging
• T1027 – .NET source code contains long base64-encoded strings
• T1070.004 – May delete shadow drive data (may be related to ransomware)
• T1057 – Queries a list of all running processes
• T1082 – Queries the volume information (name, serial number etc) of a device

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.

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