General

  • Target

    JaffaCakes118_ac4168e8d78b7dd6b1e06fd758e4258f

  • Size

    632KB

  • Sample

    250411-a22tlswls4

  • MD5

    ac4168e8d78b7dd6b1e06fd758e4258f

  • SHA1

    b3098a22f33d56b72e85cda088dae2b9ac9eb656

  • SHA256

    9ed614a7ff1f776b2c23c28dfb845ca42b89b51afd80996422e82860fea16ee4

  • SHA512

    4ef00d9106179fe9a8564afae761810c7d5cb14670202f983b4f540b2165e88fee72e7c67c431ff20e26500e20bc5feae7983709085ee772576c843612d3144a

  • SSDEEP

    12288:gEgkDxdkL+6JNgKVcRa+fpHyWs3OBH4pUt1XIB4quawI:DxsKXa+hHyWseBgU1XIqo

Malware Config

Targets

    • Target

      JaffaCakes118_ac4168e8d78b7dd6b1e06fd758e4258f

    • Size

      632KB

    • MD5

      ac4168e8d78b7dd6b1e06fd758e4258f

    • SHA1

      b3098a22f33d56b72e85cda088dae2b9ac9eb656

    • SHA256

      9ed614a7ff1f776b2c23c28dfb845ca42b89b51afd80996422e82860fea16ee4

    • SHA512

      4ef00d9106179fe9a8564afae761810c7d5cb14670202f983b4f540b2165e88fee72e7c67c431ff20e26500e20bc5feae7983709085ee772576c843612d3144a

    • SSDEEP

      12288:gEgkDxdkL+6JNgKVcRa+fpHyWs3OBH4pUt1XIB4quawI:DxsKXa+hHyWseBgU1XIqo

    • 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

    • Blocklisted process makes network request

    • 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