General

  • Target
    VELOCITY.exe
  • Size 302KB
  • Sample260708-j3cesacz4w
  • SHA256 a2755beb50c5d16501e4b92a699b4556e030a6ac4ae7ff05845589ac9daae9ec
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xbinder

Mutex
  • AjoudjKkoawdA1cr8

Attributes
  • primary_drop_directory

    %Temp%

  • primary_execute

    true

  • primary_hidden_file

    false

  • primary_resource_name

    WinLock.exe

  • secondary_drop_directory

    %Temp%

  • secondary_execute

    true

  • secondary_hidden_file

    false

  • secondary_resource_name

    XBinderOutput1.exe

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1521003115141140490/Ne63mu0uj13Z34JtPR2D1ywwbi6YXUecGn9zNM1yM5MKGaUSF_LRJyEeR92d4TJD_tid

Extracted

Family
  • xorium_stealer

C2
  • https://api.telegram.org/bot8664505407:AAGEHIhIHKRmZqP4RYo5wgCqLoFAOTkKy-4/sendDocument

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

Targets

    • Target
      VELOCITY.exe
    • Size 302KB
    • SHA256 a2755beb50c5d16501e4b92a699b4556e030a6ac4ae7ff05845589ac9daae9ec
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Umbral payload

    • Detects XoriumStealer payload

    • Family: Umbral

      Umbral stealer is an open-source modular stealer written in C#.

    • Family: XBinder

      XBinder is a crypter and loader delivering a wide variety of malware, written in C#.

    • Family: XoriumStealer

      XoriumStealer is an information stealer written in C#.

    • Modifies WinLogon for persistence

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Disables automatic submission of suspicious files to Microsoft by Windows Defender

      Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Looks up external IP address via web service

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

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v16

Tasks