Extracted

Extracted

Extracted

• • Target

    F2LNJ_loader.exe

  • Size

    5.4MB

  • MD5

    916f7dea6831485387d70b0891455e65

  • SHA1

    176e995cc2584d7c9703b2beee0994dcc4be91d5

  • SHA256

    c47e49026afb1d2c8708f1e36510ad862eb288c7ac48e9c4bebfbd051475fbc2

  • SHA512

    ba5c40e6416a53c88f5b5d7e0ce346956ef6bd0aebed355df8070ebb71dda78125945fe1cdca87caa29a2b5d98c437bafd228396a516c91f764256e54556f0e4

  • SSDEEP

    98304:m52dhBZTv0sGVD+Oq7j3JQ9oQSqEac8JgZSeC3FSDsa7V578kXHoujwCl1um:+sBtGVD+OoUq8+SZ1hAVpRRjw6Q

  Score

  10^/10

  njratumbralxwormhackeddiscoveryevasionexecutionpersistenceprivilege_escalationratstealertrojan

  • Detect Umbral payload

  • Detect Xworm Payload

  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Modifies Windows Firewall

    evasion

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE

  • Loads dropped DLL

  • Adds Run key to start application

    persistence

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  behavioral1behavioral2