General

  • Target

    VixenLoader.zip

  • Size

    38.2MB

  • Sample

    241221-zvjf5azkdv

  • MD5

    5c1bd6874251e15caee1a09e30efe967

  • SHA1

    4e481eaa7c41703061e4b9e2f90894729a33fd76

  • SHA256

    a12ff85cf94a5221eaa400be0fb0df03b75c2efffd44cfd4c5c6cee355da42d5

  • SHA512

    bcaba1624fb3a47978ece8b39da4cbaaf0ddc79cfad85694c11eb32a85cbd58f0c27116fcf34bf8cbce197455fc8433e25dd2e9a2596d59bb42ae4cbfe989cc7

  • SSDEEP

    786432:4LUyxU9+MCXvK5gENjMUitmNe/S5GgdjCmznZRtphbPsE4Ss:wS9uCyEN4XVKjjC6ZHHQ3

Malware Config

Extracted

Family

xworm

Version

5.0

C2

play-treatments.gl.at.ply.gg:50330

Mutex

0JSF3VLcLKVr7CJP

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    System.exe

aes.plain

Targets

    • Target

      VixenLoader.exe

    • Size

      38.3MB

    • MD5

      42660a451f750c72df213ed8b234da84

    • SHA1

      57d610944313b20cec5918d8e4a482eebbe45beb

    • SHA256

      6d2cf58460eeebc417121afd3d5b0592b88b16f1b115e16aba32049437d05832

    • SHA512

      3843a449128f6be9ec4cfaee84c6c9c323b79bdfd22c9cf582c7f563c125db66fd12ae9324af197265e0da6faf30cb2a5a9e966c9343d9d098b0a8a38c655526

    • SSDEEP

      786432:73skHahOcCzPA18A/Fk+SfyNqDOjM8VzG4j9rL5nUbVOtsa:zmhQ4iA/eVrCtzGoZ1Ug

    • Detect Xworm Payload

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Exelastealer family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Command and Scripting Interpreter: PowerShell

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

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v15

Tasks