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+ hours, this malware remained undetected — a limited but sufficient window for the adversary to complete initial execution and establish basic system access.

Global Detection Posture — Who Caught It, Who Missed It

VirusTotal engines: 72. Detected as malicious: 61. Missed: 11. Coverage: 84.7%.

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

Intensive file system activity (49.19% of behavior) indicates data harvesting, file encryption, or dropper behavior. The threat is actively searching for and manipulating files across the system.

MITRE ATT&CK Mapping

• T1560.002 – compress data using GZip in .NET
• T1033 – get session integrity level
• T1082 – query environment variable
• T1033 – get session user name
• T1087 – get session user name
• T1047 – access WMI data in .NET
• T1027 – encode data using Base64
• T1497.001 – reference anti-VM strings targeting VirtualBox
• T1083 – check if file exists
• T1056.001 – log keystrokes via polling
• T1012 – query or enumerate registry value
• T1497.001 – reference anti-VM strings targeting VMWare
• T1057 – enumerate processes
• T1518 – enumerate processes
• T1105 – download and write a file
• T1620 – load .NET assembly
• T1082 – get OS version in .NET
• T1083 – check if directory exists
• T1112 – delete registry key
• T1113 – capture screenshot
• T1213 – reference WMI statements
• T1082 – get disk size
• T1547.001 – persist via Run registry key
• T1140 – decode data using Base64 in .NET
• T1057 – find process by PID
• T1082 – get hostname
• T1012 – query or enumerate registry key
• T1082 – get number of processors
• T1614.001 – get keyboard layout
• T1112 – delete registry value
• T1070.004 – self delete
• T1056.001 – log keystrokes
• T1620 – invoke .NET assembly method
• T1053.005 – schedule task via schtasks
• T1083 – get common file path
• T1082 – Checks available memory
• T1071 – Looks up the external IP address
• T1071 – HTTP traffic contains suspicious features which may be indicative of malware related traffic
• T1071 – Yara detections observed in process dumps, payloads or dropped files
• T1106 – Guard pages use detected – possible anti-debugging.
• T1027.002 – 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.
• T1027.002 – Detected a call to the Crypt API containing an IP address, a domain, or a filename
• T1057 – The process has tried to detect the debugger probing the use of page guards.
• T1071 – Detected one or more anomalous HTTP requests
• T1071 – Detected HTTP requests to some non white-listed domains
• T1057 – The process attempted to detect a running debugger using common APIs
• T1063 – The process has tried to detect Sandboxie (loading its library)
• T1129 – The process has tried to detect Sandboxie (loading its library)
• T1082 – Queries for the computername
• T1082 – The process tried to collect informations about the system reading some known registry keys
• T1012 – The process tried to collect informations about the system reading some known registry keys
• T1027.002 – Manalize Local SandBox Strings
• T1047 – Queries sensitive Operating System Information (via WMI, Win32_ComputerSystem, often done to detect virtual machines)
• T1542.003 – May use bcdedit to modify the Windows boot settings
• T1497 – Checks if the current process is being debugged
• T1497 – Queries sensitive Operating System Information (via WMI, Win32_ComputerSystem, often done to detect virtual machines)
• T1497 – Allocates memory with a write watch (potentially for evading sandboxes)
• T1562.001 – Creates guard pages, often used to prevent reverse engineering and debugging
• T1140 – .NET source code contains calls to encryption/decryption functions
• T1027 – .NET source code contains long base64-encoded strings
• T1027.002 – .NET source code contains method to dynamically call methods (often used by packers)
• T1027.002 – .NET source code contains potential unpacker
• T1518.001 – Check if machine is in data center or colocation facility
• T1518.001 – Checks if the current process is being debugged
• T1518.001 – Queries sensitive Operating System Information (via WMI, Win32_ComputerSystem, often done to detect virtual machines)
• T1016 – Checks the online ip address of the machine
• T1082 – Queries the cryptographic machine GUID
• T1082 – Queries sensitive Operating System Information (via WMI, Win32_ComputerSystem, often done to detect virtual machines)
• T1082 – Queries the volume information (name, serial number etc) of a device
• T1082 – Checks the free space of harddrives
• T1560 – .NET source code contains calls to encryption/decryption functions
• T1105 – Downloads files from webservers via HTTP
• T1095 – Downloads files from webservers via HTTP
• T1071 – Downloads files from webservers via HTTP

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.