Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

General

  • Target

    84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe

  • Size

    229KB

  • Sample

    250108-rhz94ssqav

  • MD5

    d5b2a8bb68e47bda3a870e5f46f4fe45

  • SHA1

    c7ba06a0aeae1130cc0d49c697f10bca901939e0

  • SHA256

    84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893

  • SHA512

    579196a951a91e13563f7ba5572366929b80559d0180436f1a3dc1db404a141b6ebf908995f81e1856bd0a10836a8d0e3d4cfc948a1d91f81c91f6524177e869

  • SSDEEP

    6144:FloZM+rIkd8g+EtXHkv/iD4AFyuMS1NmYzus9x4uab8e1mtiY:HoZtL+EP8AFyuMS1NmYzus9x45jY

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1313811831906762792/0E535NbdSliQWNEaFE2OeKp9ttWU5OcljhalGUnuKioPrSNPnNb45qh5ZMmcXLPrAWI1

Targets

    • Target

      84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe

    • Size

      229KB

    • MD5

      d5b2a8bb68e47bda3a870e5f46f4fe45

    • SHA1

      c7ba06a0aeae1130cc0d49c697f10bca901939e0

    • SHA256

      84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893

    • SHA512

      579196a951a91e13563f7ba5572366929b80559d0180436f1a3dc1db404a141b6ebf908995f81e1856bd0a10836a8d0e3d4cfc948a1d91f81c91f6524177e869

    • SSDEEP

      6144:FloZM+rIkd8g+EtXHkv/iD4AFyuMS1NmYzus9x4uab8e1mtiY:HoZtL+EP8AFyuMS1NmYzus9x45jY

    • Detect Umbral payload

    • Umbral

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

    • Umbral family

    • Command and Scripting Interpreter: PowerShell

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • Deletes itself

    • Reads user/profile data of web browsers

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

    • 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