General

  • Target

    skuld.exe

  • Size

    9.5MB

  • Sample

    240728-gv7jvavgpf

  • MD5

    1907391ffebb2bb4e94531ae060e6561

  • SHA1

    22f1e236cbdb668a181104f3527e52186672ea4f

  • SHA256

    06032158de42767dbc107a96d54319522a000f106550a055ae46fc6086aacfad

  • SHA512

    aad82a0a9c8819267c8bfeab41c2c94c30c4b5c437f61a008562d63ae07c53770bbb6d52512857a4aa6033ac6e71df58429954bbe48491074480f59c5ed87706

  • SSDEEP

    98304:sP4vX4pw0vIIG4SLmo2+jRrHsxME9YB7F/Bz2HIb:Fv4pw0Mmo2+1rHsxl9YNcIb

Malware Config

Targets

    • Target

      skuld.exe

    • Size

      9.5MB

    • MD5

      1907391ffebb2bb4e94531ae060e6561

    • SHA1

      22f1e236cbdb668a181104f3527e52186672ea4f

    • SHA256

      06032158de42767dbc107a96d54319522a000f106550a055ae46fc6086aacfad

    • SHA512

      aad82a0a9c8819267c8bfeab41c2c94c30c4b5c437f61a008562d63ae07c53770bbb6d52512857a4aa6033ac6e71df58429954bbe48491074480f59c5ed87706

    • SSDEEP

      98304:sP4vX4pw0vIIG4SLmo2+jRrHsxME9YB7F/Bz2HIb:Fv4pw0Mmo2+1rHsxl9YNcIb

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v15

Tasks