General

  • Target

    cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe

  • Size

    733KB

  • Sample

    240612-cqkgasyena

  • MD5

    1c36963334fc0e6bb41991b648bd1e35

  • SHA1

    2398864c898403fbd87a42e422200bd590468219

  • SHA256

    cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214

  • SHA512

    a5e08e998768c9b83d4809a8148496ed8b5f6d0c3738e3916078ee68b670aeb554ed4cccb0c137d7b12b90fab20fd5caa98f5c0efe8f5792a2d61dde877ce818

  • SSDEEP

    12288:0X0pxyV36Di8BtLeX2BJ36912QcAo2o+vaLmW01MFoHxdehiooVa741jlDuVQeeg:CBFKlBJ3PQcF2SLmWAMFcbe2ubz

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    qaxt fhfi ysqm rwcn

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe

    • Size

      733KB

    • MD5

      1c36963334fc0e6bb41991b648bd1e35

    • SHA1

      2398864c898403fbd87a42e422200bd590468219

    • SHA256

      cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214

    • SHA512

      a5e08e998768c9b83d4809a8148496ed8b5f6d0c3738e3916078ee68b670aeb554ed4cccb0c137d7b12b90fab20fd5caa98f5c0efe8f5792a2d61dde877ce818

    • SSDEEP

      12288:0X0pxyV36Di8BtLeX2BJ36912QcAo2o+vaLmW01MFoHxdehiooVa741jlDuVQeeg:CBFKlBJ3PQcF2SLmWAMFcbe2ubz

    • 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.

    • 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