General

  • Target
    Offer_CTJV.gz
  • Size 631KB
  • Sample221022-g7rn6abcgp
  • SHA256 a284fe0ba3ca99fb776ffcff4ca1da7a839bcbd301e4b07aea056ef5ce3909d3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      Offer_CTJV.exe
    • Size 682KB
    • SHA256 3c6e68b6ac37e83297be2aa9555684046a464cfaceb90ed6a575c7d31ec0cffa
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks