General

  • Target

    JaffaCakes118_e8ad435a27cd7a8d1e51875421180d9a

  • Size

    600KB

  • Sample

    250504-dkfrlaxnz6

  • MD5

    e8ad435a27cd7a8d1e51875421180d9a

  • SHA1

    eb5af05652e8ff0c81c01260c3953a28b2874459

  • SHA256

    8d9df0920d433e592645be756e2e7d12594afada7b2d9428a9a39b6d4199cd33

  • SHA512

    970b3d00a4fd5cc3eef6259cad77332427ec95b05dce5f10d1225bf4573c522491fc500650b3965ee2f2fb0e26908367c80df35a16849b33cda6013ff809d740

  • SSDEEP

    6144:vj6/wndfF/gl0LQIk8DR3dEuAI7pEfxsZozAm9TMdGQLUg1nYmefPImdrion:r6onxOp8FySpE5zvIdtU+Ymef

Malware Config

Targets

    • Target

      JaffaCakes118_e8ad435a27cd7a8d1e51875421180d9a

    • Size

      600KB

    • MD5

      e8ad435a27cd7a8d1e51875421180d9a

    • SHA1

      eb5af05652e8ff0c81c01260c3953a28b2874459

    • SHA256

      8d9df0920d433e592645be756e2e7d12594afada7b2d9428a9a39b6d4199cd33

    • SHA512

      970b3d00a4fd5cc3eef6259cad77332427ec95b05dce5f10d1225bf4573c522491fc500650b3965ee2f2fb0e26908367c80df35a16849b33cda6013ff809d740

    • SSDEEP

      6144:vj6/wndfF/gl0LQIk8DR3dEuAI7pEfxsZozAm9TMdGQLUg1nYmefPImdrion:r6onxOp8FySpE5zvIdtU+Ymef

    • 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