General

  • Target

    JaffaCakes118_c45c7c3be165367d7676c127dbdc2050

  • Size

    832KB

  • Sample

    250420-d4yrhsstcs

  • MD5

    c45c7c3be165367d7676c127dbdc2050

  • SHA1

    0ca4bbd08beb9ce9e8bd6807113345389aa07588

  • SHA256

    7be6ccadfe39aff45029a30fe34b3c87ac49ebbad791c34e2ff8bb30e7e07721

  • SHA512

    d0aa1e6158da64512f9098ed1ae8d33d1882a1c23fb2c7bbbc3a3c0e331355d24dc302ef4f5b778d17f952fdd93adfd5e77fc81c73c5b119793b398edb43bbb3

  • SSDEEP

    12288:0gkDxdkL+6JNgKVcRa+fpHyWs3OBH4pUYJPfZQ:qxsKXa+hHyWseBgzm

Malware Config

Targets

    • Target

      JaffaCakes118_c45c7c3be165367d7676c127dbdc2050

    • Size

      832KB

    • MD5

      c45c7c3be165367d7676c127dbdc2050

    • SHA1

      0ca4bbd08beb9ce9e8bd6807113345389aa07588

    • SHA256

      7be6ccadfe39aff45029a30fe34b3c87ac49ebbad791c34e2ff8bb30e7e07721

    • SHA512

      d0aa1e6158da64512f9098ed1ae8d33d1882a1c23fb2c7bbbc3a3c0e331355d24dc302ef4f5b778d17f952fdd93adfd5e77fc81c73c5b119793b398edb43bbb3

    • SSDEEP

      12288:0gkDxdkL+6JNgKVcRa+fpHyWs3OBH4pUYJPfZQ:qxsKXa+hHyWseBgzm

    • Modifies WinLogon for persistence

    • Pykspa

      Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    • Pykspa family

    • Detect Pykspa worm

    • Adds policy Run key to start application

    • Disables RegEdit via registry modification

    • Checks computer location settings

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

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

    • Looks up external IP address via web service

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks