General

  • Target

    e47700621fc5ced243c6f923474a046b17e47dee57d553d43e44e3190dae017f

  • Size

    604KB

  • Sample

    250109-bxbbjavlfr

  • MD5

    1a99740d66ead67349e23847b42a4a57

  • SHA1

    4d695766214270c7300baccad8a899c8dc7a658a

  • SHA256

    e47700621fc5ced243c6f923474a046b17e47dee57d553d43e44e3190dae017f

  • SHA512

    239157346c43c987bee3ef335483b6cbf5b4c6c338c8571b61c7c64aeaaf93ba6c36c3c0faec3b64d11645eb60b32e5a5d5bb4ae72989234d6ccabe11118215f

  • SSDEEP

    12288:NexLpgiUIXbobHWXmCOFe1iIpoOmA8eoeDKSrtNxtvg/KwoeiHNd5:NkWCb82DOg1iIN5KSOcv5

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5145135161:AAFnBnjYGtIUE_EwGqQ3-YIV1FOEItrzy8c/

Targets

    • Target

      proforma invoice pdf.exe

    • Size

      765KB

    • MD5

      cff00ea297618407a3ff1a4800066029

    • SHA1

      d4747b2d2a68020ad71921545688c7baee2c9d42

    • SHA256

      7488790c53f9ce42ee7b8138d93b6952693f3847d4a94f3aed0a535f15a3997f

    • SHA512

      4921d5302ef30481eb2b3053d81b3684c8ec957534981aef2b588116d4a0cf97fee241232e0164549ce6cb37e5e84fd2bb38175c82c084d331451ca635cabacd

    • SSDEEP

      12288:MN9OuEhdaCiBTiwezEgarU5GZ9+m6/GERoKaJo6vrhcst26tCyIaVzaDkR:QO7teTihznOU5GZ9h6/GTlo6zhc76tC8

    • AgentTesla

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

    • Agenttesla family

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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