General

  • Target

    ae424f87ddc0913714a888f32a9412df939107b863c28e407513cf1b55db07f2.exe

  • Size

    818KB

  • Sample

    240523-cb3z4ahf85

  • MD5

    03706e52938770bd5497faddc41ae671

  • SHA1

    75d77e86a0c5eb7745d0efe60c90175deea29fea

  • SHA256

    ae424f87ddc0913714a888f32a9412df939107b863c28e407513cf1b55db07f2

  • SHA512

    00fe3572a8cb40ec347c9ce563ecc4e78bc0cd93f7c987f1cc3cd9f2de1b93fa33bc7c3e017c84897c494a905895c987de71459151f5fb03f3c458bf15918a56

  • SSDEEP

    12288:zzWWET/mr9K0A/B5bKmy+VDmVx5R380an/soBWKNmRobGGKraPHOLcIjqlEWDvo+:zzWWtDQKd+lFbNkALWfsE+

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      ae424f87ddc0913714a888f32a9412df939107b863c28e407513cf1b55db07f2.exe

    • Size

      818KB

    • MD5

      03706e52938770bd5497faddc41ae671

    • SHA1

      75d77e86a0c5eb7745d0efe60c90175deea29fea

    • SHA256

      ae424f87ddc0913714a888f32a9412df939107b863c28e407513cf1b55db07f2

    • SHA512

      00fe3572a8cb40ec347c9ce563ecc4e78bc0cd93f7c987f1cc3cd9f2de1b93fa33bc7c3e017c84897c494a905895c987de71459151f5fb03f3c458bf15918a56

    • SSDEEP

      12288:zzWWET/mr9K0A/B5bKmy+VDmVx5R380an/soBWKNmRobGGKraPHOLcIjqlEWDvo+:zzWWtDQKd+lFbNkALWfsE+

    • 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.

    • 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