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 17+ 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.

Global Detection Posture — Who Caught It, Who Missed It

VirusTotal engines: 73. Detected as malicious: 63. Missed: 10. Coverage: 86.3%.

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

Heavy cryptographic operations (99.93% of behavior) indicate potential ransomware, data encryption for exfiltration, or secure C2 communications. The malware is actively encrypting or decrypting sensitive data.

MITRE ATT&CK Mapping

• T1083 – get common file path
• T1620 – load .NET assembly
• T1497.001 – reference anti-VM strings targeting VMWare
• T1053.005 – schedule task via schtasks
• T1057 – enumerate processes
• T1518 – enumerate processes
• T1033 – get session user name
• T1087 – get session user name
• T1082 – get number of processors
• T1047 – access WMI data in .NET
• T1012 – query or enumerate registry key
• T1082 – query environment variable
• T1033 – get session integrity level
• T1560.002 – compress data using GZip in .NET
• T1082 – get OS version in .NET
• T1082 – get disk size
• T1012 – query or enumerate registry value
• T1027 – encode data using Base64
• T1070.004 – self delete
• T1140 – decode data using Base64 in .NET
• T1497.001 – reference anti-VM strings targeting VirtualBox
• T1083 – check if file exists
• T1112 – delete registry value
• T1082 – get hostname
• T1112 – delete registry key
• T1082 – Checks available memory
• T1071 – Attempts to connect to a dead IP:Port
• T1071 – Binary file triggered YARA rule
• T1071 – Yara detections observed in process dumps, payloads or dropped files
• T1219 – Creates known AsyncRat mutex
• T1106 – Guard pages use detected – possible anti-debugging.
• T1012 – Query OS Information
• T1027.002 – Resolves API functions dynamically
• T1047 – Queries OS version via WMI
• T1047 – Tries to detect the presence of antivirus software
• T1082 – Query OS Information
• T1082 – Queries OS version via WMI
• T1095 – Connects to remote host
• T1134 – Enables process privileges
• T1480 – Known malicious mutex name is created
• T1518.001 – Tries to detect the presence of antivirus software
• T1571 – Tries to connect using an uncommon port
• T1129 – The process attempted to dynamically load a malicious function
• T1129 – The process tried to load dynamically one or more functions.
• T1057 – The process has tried to detect the debugger probing the use of page guards.
• T1082 – get OS version in .NET
• T1140 – decode data using Base64 in .NET
• T1082 – query environment variable
• T1053.005 – schedule task via schtasks
• T1012 – query or enumerate registry key
• T1083 – check if file exists
• T1083 – get common file path
• T1082 – get disk size
• T1047 – access WMI data in .NET
• T1082 – get hostname
• T1082 – get number of processors
• T1033 – get session integrity level
• T1012 – query or enumerate registry value
• T1112 – delete registry value
• T1112 – delete registry key
• T1620 – load .NET assembly
• T1027 – encode data using Base64
• T1560.002 – compress data using GZip in .NET
• T1057 – The process attempted to detect a running debugger using common APIs
• T1071 – The process behaves as a known keylogger (iSpy)
• T1057 – enumerate processes
• T1518 – enumerate processes
• T1033 – get session user name
• T1087 – get session user name
• T1497.001 – reference anti-VM strings targeting VirtualBox
• T1497.001 – reference anti-VM strings targeting VMWare
• T1047 – Checks if Antivirus program is installed (via WMI)
• T1055 – May try to detect the Windows Explorer process (often used for injection)
• T1562.001 – Creates guard pages, often used to prevent reverse engineering and debugging
• T1497 – Allocates memory with a write watch (potentially for evading sandboxes)
• T1497 – May sleep (evasive loops) to hinder dynamic analysis
• T1027 – .NET source code contains long base64-encoded strings
• T1518.001 – Checks if Antivirus program is installed (via WMI)
• T1057 – May try to detect the Windows Explorer process (often used for injection)
• T1082 – Queries the cryptographic machine GUID
• T1082 – Queries the volume information (name, serial number etc) of a device
• T1082 – Checks the free space of harddrives
• T1571 – Detected TCP or UDP traffic on non-standard ports

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.