General

  • Target

    JaffaCakes118_ea29eefa01084b4a58347ba987362157

  • Size

    320KB

  • Sample

    250504-j96xza1r15

  • MD5

    ea29eefa01084b4a58347ba987362157

  • SHA1

    35f025ac5c62160601de0760f03da41606768f3e

  • SHA256

    8c9def5251055da3affba3ee7f31613c4e36fadb3e35a6a4cab88ee189ef163b

  • SHA512

    6b5a2c82d49c002c284054a8dc56459f9f5b29302a1e5b642ddf264bc5dffc61b8d09aebb5be187081e6312d49dbb3b3b8fb24c7fe44956c3fe8d69c8b497dc9

  • SSDEEP

    6144:qTwvo1IV3puaibGKFHi0mofhaH05kipz016580bHFKT686JQPDHDdx/QtqR:EVgvmzFHi0mo5aH0qMzd5807FvPJQPDV

Malware Config

Targets

    • Target

      JaffaCakes118_ea29eefa01084b4a58347ba987362157

    • Size

      320KB

    • MD5

      ea29eefa01084b4a58347ba987362157

    • SHA1

      35f025ac5c62160601de0760f03da41606768f3e

    • SHA256

      8c9def5251055da3affba3ee7f31613c4e36fadb3e35a6a4cab88ee189ef163b

    • SHA512

      6b5a2c82d49c002c284054a8dc56459f9f5b29302a1e5b642ddf264bc5dffc61b8d09aebb5be187081e6312d49dbb3b3b8fb24c7fe44956c3fe8d69c8b497dc9

    • SSDEEP

      6144:qTwvo1IV3puaibGKFHi0mofhaH05kipz016580bHFKT686JQPDHDdx/QtqR:EVgvmzFHi0mo5aH0qMzd5807FvPJQPDV

    • 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 file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks