General

  • Target

    Quotation.pdf.z

  • Size

    618KB

  • Sample

    240329-t447asce51

  • MD5

    e53e3a95646d8e2654bebdee6b687b9e

  • SHA1

    fde5156a8f7ff273bd1353a1b9f4e21c2418de87

  • SHA256

    78f522862bc39091d29d9091f6efc6fc4d7d6797c76faae6a65c26522f191991

  • SHA512

    dda414046a7fb6e3cb3b758f113c9324c3708ec22b6db155b47ddb3ecbf46db2a316f06a2cd638481c7901742f1458aaf0e06df29f3b428e1146fe8bfcda5729

  • SSDEEP

    12288:pipfKAhCNolQUrYkKQvTJad/Tfb5l8mUSi4va0tsaJpeTkMg8nG3rTw6e2zz:pipf9/YWTJofNl8mPi4vxtt7eTC13Jzz

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Quotation.pdf.exe

    • Size

      695KB

    • MD5

      61d343222c270b50fdf882011222e435

    • SHA1

      b57f309cac22c8e79fb9ea43ae92028b5873a66c

    • SHA256

      a1a5145381a87900950867d3e6632aaf89fdedb9c898bf44fd7efbea077ab224

    • SHA512

      52cba082b0439d17e7e1d47c6ecc12f172b24e29e9125da2911e44c24c23c8051f30e7615e76700d5341359a2ec26a79ec195ee15e0620f8f9463dbacbc9990e

    • SSDEEP

      12288:PlShCZs+/zSuMtf+I6BLLVcyMgBDYHsaWuTwAq3XA2ZWieEhcdBDX:NSUq9xfGNc5gBcBWuTwAwHWieu+

    • AgentTesla

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

    • 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