General

  • Target

    Venom RAT + Stealer + HVNC.exe

  • Size

    14.3MB

  • Sample

    240713-xsap4atcmr

  • MD5

    d9a91babacaf65923e28841d7995b80c

  • SHA1

    57df4208c6a87ef881cf2021a1ad431a21456248

  • SHA256

    8b5773001a13cd82f47b129c4673c2fdfe9a19852825a72b1231f6333cd22951

  • SHA512

    6e0eb14b2a14d35884dd6d4505ea78d28ae6cee6ec59cabcb9a2499f63539d217196d7afca7b8e299ca8c9b447218f421c5372ebbd0167fbe2d803c68125c6bc

  • SSDEEP

    393216:w2CdPoVETWa1Z4c80Gz/e5Yyb0Pn1a7kIGvZscp1Ae8A:wWIWa1acPGC5Yyb0PnikXZ1p198

Malware Config

Extracted

Family

xworm

Version

3.0

C2

147.185.221.20:49485

Attributes
  • Install_directory

    %Public%

  • install_file

    RtkAudUService32.exe

Targets

    • Target

      Venom RAT + Stealer + HVNC.exe

    • Size

      14.3MB

    • MD5

      d9a91babacaf65923e28841d7995b80c

    • SHA1

      57df4208c6a87ef881cf2021a1ad431a21456248

    • SHA256

      8b5773001a13cd82f47b129c4673c2fdfe9a19852825a72b1231f6333cd22951

    • SHA512

      6e0eb14b2a14d35884dd6d4505ea78d28ae6cee6ec59cabcb9a2499f63539d217196d7afca7b8e299ca8c9b447218f421c5372ebbd0167fbe2d803c68125c6bc

    • SSDEEP

      393216:w2CdPoVETWa1Z4c80Gz/e5Yyb0Pn1a7kIGvZscp1Ae8A:wWIWa1acPGC5Yyb0PnikXZ1p198

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Modifies Windows Firewall

    • Server Software Component: Terminal Services DLL

    • Allows Network login with blank passwords

      Allows local user accounts with blank passwords to access device from the network.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Modifies WinLogon

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks