General

  • Target

    Halkbank,pdf.rar

  • Size

    602KB

  • Sample

    240617-nhnpjasell

  • MD5

    34c0224e00be0445ad1a7160ab42e036

  • SHA1

    679df11f7cbd94f6979b6593d698ccfac0b69c42

  • SHA256

    f8bf0415f9a1bdbbc3b7790809df951f7ee246f2e45791ffefdea4dad591ac1f

  • SHA512

    ca139ba84658f98bfd61bfc67ce2d72d288acbd656a679274940e5d6e4b730a3bf9215d410ba12d440ba1e1d8755399b0cffc3eedc703697697d8337225f7c78

  • SSDEEP

    12288:LAtiITcVDOPAcZs/KjOTpPs13F5nzZlKo6rbtQSL4PQYF+ceN4j:LEiZV6PAksyWE3jnNlKHKSL49sXN4j

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Halkbank,pdf.exe

    • Size

      636KB

    • MD5

      062db577d710e0919eb99cde5839735a

    • SHA1

      bc28ede5332e48ac0be1adc989e7ebe74ec4e490

    • SHA256

      5dda08c4efdce4925825f713a711f904175435cb4851e24ff67365d63f891f86

    • SHA512

      4cc726cd5b01e6c1830e06e23a26a2d6b7c60a5c71ca2b12712f8d090e12f1c02ae0fbcad05f9f58b608cc570c05c71b7c0b0f8565f70579295d88e0d3674353

    • SSDEEP

      12288:5Z/iFIsPAb/z/5YibqWOPU0z71dpcFkksZk9OGSwn9CAKEA8fEDo/:rkIKybRYqfaZP7+9sgOJTSfWo

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks