General

  • Target

    434affc196aedacb686d0dcd5d15fc03e85a4cf3db041192d8e8c995291488c1.rar

  • Size

    638KB

  • Sample

    240523-br98nsgf42

  • MD5

    1f2c529e871f28feab4d7d5ef107c873

  • SHA1

    cf6ce61148d3c1a5540aa2d590b3ed4b459ade63

  • SHA256

    434affc196aedacb686d0dcd5d15fc03e85a4cf3db041192d8e8c995291488c1

  • SHA512

    7bebe99ec316c672c2d0212c69e7700cae06d70eca82fd731774ca30b28729d85333b879c1766a6fb236b617df82fe00bdfbf892c303aa282e101dedffc0d573

  • SSDEEP

    12288:GphB7sFivCACw8ksmeGOHU2T3Z3IRfjKh0HiRIag9OsLXMz:YaivFCw8ks3VEflCRIa9sLa

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.activefreightpak.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    AFSPL**77**

Targets

    • Target

      SOA APR 24.exe

    • Size

      670KB

    • MD5

      2b12a266317f002c205011fa1958072c

    • SHA1

      07e6859611698f37aa9c4011f76907aafe524218

    • SHA256

      dff297acb567f990471dca2871adee15229e572c35fef5fd20eb9a1428946c04

    • SHA512

      444f0444202f3c4c67cdf3deeb479233041edd4d7a16c0240b729173b5781322278d21abb9e55eb09668795e1121a77ea9ffd11735823a08b109f064969f67b8

    • SSDEEP

      12288:J0FJzi8LkpEaAxx1Qy0+9+WTehgXkWP3DdFsOFHplgCIQlHzWH4jdmeO1W+TLTuU:KT2jE3LS7+99fXxP3DdFnFJ2CIQBgcdO

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks