General

  • Target

    0223bd431ab35ef18d32fda419dd6db74241901d41c3ea8ecd3727859399824e

  • Size

    666KB

  • Sample

    241002-mrsjeawbkb

  • MD5

    12633870e98107816e334d836ff8cb1b

  • SHA1

    ff460c81d2b1b381466fee38f1d963a988272575

  • SHA256

    0223bd431ab35ef18d32fda419dd6db74241901d41c3ea8ecd3727859399824e

  • SHA512

    0c2c198b758831629534e84e5e3f5390887a44f74e337bc903037e58eb6a68a089b9c455ef9d49284374722ff087574ce7995bda48f95dbf70e347369b10d044

  • SSDEEP

    12288:bHrzPUShh6dR9mIc3FovHm1rWrZhsQCqTuavcRT+erpRp6zSikj0WZtJ4cPTsWQ:bHrzRP67vG0FuQCws+282j0WZ4cPTst

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

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

Targets

    • Target

      Cl137P7A5anlCXM.exe

    • Size

      830KB

    • MD5

      0837145a4f3512ea3327c5961e345c18

    • SHA1

      0e9bb752f18822af5260b2aa1fef502bb05da57b

    • SHA256

      9cb86983eb18e846a1501b4f9baaa6860cbed22993194ec1a5026e3d3c0b3ccb

    • SHA512

      c816e7c2d2f2881fcc9fc401322780c882b7b04e94f296a846a04624165b3d367e3823ffcbed4acfb1067748db4a27d13d8bc382fa46a3a1df6981d7be3889cb

    • SSDEEP

      12288:iTv6x/rzfUShh6dJ9s13zovJm1rTjfXb+dsdeB449tM+JT+ercOAMEi4vaBO:6v6ZrzBP6LvEBDXa40MK+nOv3Ig

    • 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