General

  • Target
    16102026_1719_15102026_Re-104772006900.pdf.lnk.zip
  • Size 3KB
  • Sample261016-vv8c2axtg1
  • SHA256 a32bb210e8b94422375bb70f6ba43036608efbd2664363db3cfe090d00fb5e96
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • violetworm

Version
  • 6.5

C2
  • 91.219.239.10:4452

Attributes
  • build_id

    42d8f2ea28ebbbe5fbc4cef96e4a98262051bda7f4f433c4a3c020603f227385

  • splitter

    <Violet>

aes.plain

Targets

    • Target
      Re-104772006900.pdf.lnk
    • Size 2KB
    • SHA256 e32c16f3ebd7b4472ec7ed4b4720c3f433441c30ec6086a40cb72dea1e1e593d
    • MD5 SHA1 SHA512 TLSH
    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • Target
      _
    • Size 9KB
    • SHA256 44911e09882c2a1dfb51436c6b9201fd435d0e2a479e55cfde50e51b351d3789
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects DonutLoader

    • Detects Overlord RAT

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Family: Overlord

      Overlord is an open-source Windows RAT written in Golang.

    • Family: VioletWorm

      VioletWorm is a Windows worm written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

MITRE ATT&CK Enterprise v16

Tasks