General

  • Target

    rawr.exe

  • Size

    227KB

  • Sample

    240820-d9p2kawapl

  • MD5

    a91205f6727f1c3b2f6383b90a364ed2

  • SHA1

    f8ee36a1cffba6d008f3db793d73c661e798ab3b

  • SHA256

    e9f53a85ccc391f38f8e61a652f9bc828ba30c5716cbb20a279997f47332739b

  • SHA512

    feac77579bf151f91ec897a684929ad8b5897a575a45081b27d583c027343f96590a20ceae0662d11cb8ac2df36041ed2a7f9422662cfdcf4cf555649464c36c

  • SSDEEP

    6144:eloZM+rIkd8g+EtXHkv/iD4x6ek8il92hDe8NhoNl+lj8e1m1i:IoZtL+EP8kek8il92hDe8Nhoapx

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1268794193321525280/-MtzATHm9H0Ql-oJM2T2M9v_32vsSpeIbom8dQQF9ax-tXdpjKHa9b68xGcy80W5k4pa

Targets

    • Target

      rawr.exe

    • Size

      227KB

    • MD5

      a91205f6727f1c3b2f6383b90a364ed2

    • SHA1

      f8ee36a1cffba6d008f3db793d73c661e798ab3b

    • SHA256

      e9f53a85ccc391f38f8e61a652f9bc828ba30c5716cbb20a279997f47332739b

    • SHA512

      feac77579bf151f91ec897a684929ad8b5897a575a45081b27d583c027343f96590a20ceae0662d11cb8ac2df36041ed2a7f9422662cfdcf4cf555649464c36c

    • SSDEEP

      6144:eloZM+rIkd8g+EtXHkv/iD4x6ek8il92hDe8NhoNl+lj8e1m1i:IoZtL+EP8kek8il92hDe8Nhoapx

    • Detect Umbral payload

    • Umbral

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • 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