General

  • Target

    JaffaCakes118_4345594553efe9baf55374ea56b8eb14

  • Size

    239KB

  • Sample

    250127-yycbjsvjfn

  • MD5

    4345594553efe9baf55374ea56b8eb14

  • SHA1

    9dd1e554b2df92c7aa5d7e46201dcca0d5b79d14

  • SHA256

    755f0b3c27d68bb4e6b05a92bd8c68c8d32b2adf6143739a07a116a3db7b066f

  • SHA512

    69ed00d785e53c2704f3c066177250e737379eeb1443c8e0e17a3189c8d11676e01596471bcd8d8a8a189c5f055ba30fdc321293d06be74439f0c3f7cf47da5b

  • SSDEEP

    6144:dR6XZeWvkIejI92jcRCRHYl+jr92KcRCWS0P:qpJejI93CRw+jr9sCxS

Malware Config

Targets

    • Target

      JaffaCakes118_4345594553efe9baf55374ea56b8eb14

    • Size

      239KB

    • MD5

      4345594553efe9baf55374ea56b8eb14

    • SHA1

      9dd1e554b2df92c7aa5d7e46201dcca0d5b79d14

    • SHA256

      755f0b3c27d68bb4e6b05a92bd8c68c8d32b2adf6143739a07a116a3db7b066f

    • SHA512

      69ed00d785e53c2704f3c066177250e737379eeb1443c8e0e17a3189c8d11676e01596471bcd8d8a8a189c5f055ba30fdc321293d06be74439f0c3f7cf47da5b

    • SSDEEP

      6144:dR6XZeWvkIejI92jcRCRHYl+jr92KcRCWS0P:qpJejI93CRw+jr9sCxS

    • ISR Stealer

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

    • ISR Stealer payload

    • Isrstealer family

    • 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.

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks