General

  • Target

    SecuriteInfo.com.Win64.Evo-gen.14681.29745.exe

  • Size

    870KB

  • Sample

    241019-z7wl8azckc

  • MD5

    bea28a1e680f8b8053e64c8810dad71e

  • SHA1

    8464a9aeaa3a290c9a027484a5b6e1759e9eb0e8

  • SHA256

    df8227c17eee7cc65a3ff5244c073d4e072ee864100b2a293c0ef54e9b5b3ee0

  • SHA512

    b22641529e6e642f852bc43534d49c7bc47668a432edcd3f67f4a879c77aa0e92e1ce259fb41773ba15f0a70396fe031b1073320bc95812fd3fdd2a231caa669

  • SSDEEP

    12288:47wITbhKx7WQeu3D9FPJXOmQ+qO39WoCuwTvk83uRCS26qH3OqtwIulkyF3SkH:4EITMvRFhRRbNWoCfkYSEH3OqtwIuX

Malware Config

Extracted

Family

xworm

C2

build-what.gl.at.ply.gg:10272

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Targets

    • Target

      SecuriteInfo.com.Win64.Evo-gen.14681.29745.exe

    • Size

      870KB

    • MD5

      bea28a1e680f8b8053e64c8810dad71e

    • SHA1

      8464a9aeaa3a290c9a027484a5b6e1759e9eb0e8

    • SHA256

      df8227c17eee7cc65a3ff5244c073d4e072ee864100b2a293c0ef54e9b5b3ee0

    • SHA512

      b22641529e6e642f852bc43534d49c7bc47668a432edcd3f67f4a879c77aa0e92e1ce259fb41773ba15f0a70396fe031b1073320bc95812fd3fdd2a231caa669

    • SSDEEP

      12288:47wITbhKx7WQeu3D9FPJXOmQ+qO39WoCuwTvk83uRCS26qH3OqtwIulkyF3SkH:4EITMvRFhRRbNWoCfkYSEH3OqtwIuX

    • Detect Umbral payload

    • Detect Xworm Payload

    • Umbral

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

    • 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.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • 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.

MITRE ATT&CK Enterprise v15

Tasks