General

  • Target

    60b3f4ef12794600833b77583624d77d037885f3bbc6361b013eb4ecf2017b99.exe

  • Size

    635KB

  • Sample

    241008-b5c54asepl

  • MD5

    4cc4300ca47f721736cf09e113d5d911

  • SHA1

    2c4cdbd5ecd86653e18945a320cd021001ca03f8

  • SHA256

    60b3f4ef12794600833b77583624d77d037885f3bbc6361b013eb4ecf2017b99

  • SHA512

    b7c715886f4bdbb02d2ce9277c96bcdb3eb0c5c84b67ea6d5b936a703ee6772c8eb9cd0f7205eeca9ccdc350c131039e1e7b3e19d7bd6df8b4166c3bf1f6af5e

  • SSDEEP

    12288:nYf0+ST8QGjRBBeLICPy1CS9jPWinuHg7VCFYKK56eS95Cdr:nYpmeTBWn78TjuHghCNo6eOM

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    %qroUozO;(C2Rlyb

Targets

    • Target

      60b3f4ef12794600833b77583624d77d037885f3bbc6361b013eb4ecf2017b99.exe

    • Size

      635KB

    • MD5

      4cc4300ca47f721736cf09e113d5d911

    • SHA1

      2c4cdbd5ecd86653e18945a320cd021001ca03f8

    • SHA256

      60b3f4ef12794600833b77583624d77d037885f3bbc6361b013eb4ecf2017b99

    • SHA512

      b7c715886f4bdbb02d2ce9277c96bcdb3eb0c5c84b67ea6d5b936a703ee6772c8eb9cd0f7205eeca9ccdc350c131039e1e7b3e19d7bd6df8b4166c3bf1f6af5e

    • SSDEEP

      12288:nYf0+ST8QGjRBBeLICPy1CS9jPWinuHg7VCFYKK56eS95Cdr:nYpmeTBWn78TjuHghCNo6eOM

    • 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.

    • 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