General

  • Target

    фambral.exe

  • Size

    227KB

  • Sample

    241009-syk1sssdpg

  • MD5

    6e13e79e84c2222a4f601af974a38f45

  • SHA1

    1653fa8feb0e8c2b9230c0c9fe0da9dc33d1b1fc

  • SHA256

    b4a7f642b99b55cd0a4d0f853404c74e3a56a7d8ebdd2cc2548f3c3aafe201fd

  • SHA512

    5046475acd8bff206583c99c260b5d182ebe794d6656a3e146583d6cc4ac64f47ec0ef7d6520111c0e58ff8428b155afb19bfc5625ddc075276324f1424037a4

  • SSDEEP

    6144:+loZMUrIkd8g+EtXHkv/iD4/wbM4+ZRSh3q459cr6Gb8e1mSi:ooZrL+EP8/wbM4+ZRSh3q459cpA

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1293591054737735834/Fi2wqbsm-o0tXgq12Xz5O8L7rHz8QgTAMnXqdJbyukAbHbYpz6seZy_-ON7fnUPFag2k

Targets

    • Target

      фambral.exe

    • Size

      227KB

    • MD5

      6e13e79e84c2222a4f601af974a38f45

    • SHA1

      1653fa8feb0e8c2b9230c0c9fe0da9dc33d1b1fc

    • SHA256

      b4a7f642b99b55cd0a4d0f853404c74e3a56a7d8ebdd2cc2548f3c3aafe201fd

    • SHA512

      5046475acd8bff206583c99c260b5d182ebe794d6656a3e146583d6cc4ac64f47ec0ef7d6520111c0e58ff8428b155afb19bfc5625ddc075276324f1424037a4

    • SSDEEP

      6144:+loZMUrIkd8g+EtXHkv/iD4/wbM4+ZRSh3q459cr6Gb8e1mSi:ooZrL+EP8/wbM4+ZRSh3q459cpA

    • Detect Umbral payload

    • Umbral

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

    • Command and Scripting Interpreter: PowerShell

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

    • Drops file in Drivers directory

    • 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