General

  • Target

    JaffaCakes118_895a38bc3fc7a0b21cadbf5b306faff7

  • Size

    512KB

  • Sample

    250326-2naxhstzfw

  • MD5

    895a38bc3fc7a0b21cadbf5b306faff7

  • SHA1

    30c3c92c4e9fbd61db6dcff4ad1a42a6d5312e09

  • SHA256

    7a093c88448db7ce4e48155a1a14a15ee3f9f850ddd5853c2597869bcdd004ee

  • SHA512

    01bbcd194671e08cbeab90592756cf8c7f8f03248cf99d195986d45006dfc7b2d1e31808887dfcafa9261b1e92b4bf5ecf0afcda3fd279ab8e2173c3e1834d4e

  • SSDEEP

    6144:bXj6/wndfF/gl0LQIk8DR3dEuAI7pEfxsZozAm9TMdGQLUg1nYmefPImdrionXz:bT6onxOp8FySpE5zvIdtU+YmefH

Malware Config

Targets

    • Target

      JaffaCakes118_895a38bc3fc7a0b21cadbf5b306faff7

    • Size

      512KB

    • MD5

      895a38bc3fc7a0b21cadbf5b306faff7

    • SHA1

      30c3c92c4e9fbd61db6dcff4ad1a42a6d5312e09

    • SHA256

      7a093c88448db7ce4e48155a1a14a15ee3f9f850ddd5853c2597869bcdd004ee

    • SHA512

      01bbcd194671e08cbeab90592756cf8c7f8f03248cf99d195986d45006dfc7b2d1e31808887dfcafa9261b1e92b4bf5ecf0afcda3fd279ab8e2173c3e1834d4e

    • SSDEEP

      6144:bXj6/wndfF/gl0LQIk8DR3dEuAI7pEfxsZozAm9TMdGQLUg1nYmefPImdrionXz:bT6onxOp8FySpE5zvIdtU+YmefH

    • 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

    • Loads dropped DLL

    • 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 v15

Tasks