General

  • Target
    JaffaCakes118_7b6e32355587a65ca9d434152ebd7ef4
  • Size 408KB
  • Sample250104-yd3m1awkdj
  • SHA256 d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      JaffaCakes118_7b6e32355587a65ca9d434152ebd7ef4
    • Size 408KB
    • SHA256 d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37
    • MD5 SHA1 SHA512 SSDEEP
    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    • ISR Stealer payload

    • Isrstealer family

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks