General

  • Target

    dimmer.exe

  • Size

    9.9MB

  • Sample

    240914-t3lcsstcnk

  • MD5

    caf1fa6480af98c28355550668388ab3

  • SHA1

    793510e3cfc758b970a405dfb568697b388b22f4

  • SHA256

    125643154c12934da22ed365bacba707a3cc353cde588401f84d61e181e83cad

  • SHA512

    a5c1d2cf802528251779de302c4d3d84578126e11f3ce2b960d17248915d6ae353ff9b6b9cfce038bde15b940e5b29115210c26a22455e108f0b70b83036fd2f

  • SSDEEP

    98304:OiyzkxkJslYf0Wk8+Z6Uhv0wD4xD1ZvE7IgwmZmHJ1RY7:OqkJsmD/Uhv0E4N1ZsrqG7

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1284535584374788180/DTgo2B6AyyBKkX7ZD2ZgnrcH0GT_qiLrmFMYI7yzH3RIwEtqht0lE9OyyQtWrmyXQ8Hl

Targets

    • Target

      dimmer.exe

    • Size

      9.9MB

    • MD5

      caf1fa6480af98c28355550668388ab3

    • SHA1

      793510e3cfc758b970a405dfb568697b388b22f4

    • SHA256

      125643154c12934da22ed365bacba707a3cc353cde588401f84d61e181e83cad

    • SHA512

      a5c1d2cf802528251779de302c4d3d84578126e11f3ce2b960d17248915d6ae353ff9b6b9cfce038bde15b940e5b29115210c26a22455e108f0b70b83036fd2f

    • SSDEEP

      98304:OiyzkxkJslYf0Wk8+Z6Uhv0wD4xD1ZvE7IgwmZmHJ1RY7:OqkJsmD/Uhv0E4N1ZsrqG7

    • Skuld stealer

      An info stealer written in Go lang.

    • 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

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v15

Tasks