General

  • Target

    ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118

  • Size

    531KB

  • Sample

    240921-eq9gjavbjl

  • MD5

    ef0aafefa653a36a33a9a8469f1e8159

  • SHA1

    00abdec221e84a67140e2ae239f4c64a9213b211

  • SHA256

    b796ebc23a355b8fbd29552b2ff7142f09617c25a30a33d5a92626f69e337d48

  • SHA512

    bb778a37da1b9b325da9719195830f5e2877d4fbffda74927b8baff5e714dd0c73b3f3b19c567554191bb105779d229a029e2da3f82bc9831a755c2d06c2c72f

  • SSDEEP

    12288:KiTzYG1w0wODUfOg5ZodnvtcZCnRn0LdAA:KiTz/tUfjwnvhnRngA

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail3.dynamail.asia
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Fehm.718907M

Targets

    • Target

      ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118

    • Size

      531KB

    • MD5

      ef0aafefa653a36a33a9a8469f1e8159

    • SHA1

      00abdec221e84a67140e2ae239f4c64a9213b211

    • SHA256

      b796ebc23a355b8fbd29552b2ff7142f09617c25a30a33d5a92626f69e337d48

    • SHA512

      bb778a37da1b9b325da9719195830f5e2877d4fbffda74927b8baff5e714dd0c73b3f3b19c567554191bb105779d229a029e2da3f82bc9831a755c2d06c2c72f

    • SSDEEP

      12288:KiTzYG1w0wODUfOg5ZodnvtcZCnRn0LdAA:KiTz/tUfjwnvhnRngA

    • AgentTesla

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

    • AgentTesla payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • System Binary Proxy Execution: InstallUtil

      Abuse InstallUtil to proxy execution of malicious code.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks