General

  • Target

    JaffaCakes118_b08d498e51aef841f6c272ad42e9a028

  • Size

    320KB

  • Sample

    250412-a7dnzatsfw

  • MD5

    b08d498e51aef841f6c272ad42e9a028

  • SHA1

    2e3cca8351bedaa59422dcf19a7b7708b8d5cc65

  • SHA256

    cf415e21ed6dee9713e1c4687e77a6034b0792bdc8dee245b3eeb900278552b5

  • SHA512

    4bd556a25b796452b11f782729d35a79027c486e8ad4c270a8d46c44d799548c895b06776f47615128d4373ce6bbf40d757e703b7121fbd1725e10f33df82977

  • SSDEEP

    6144:uTw1o1IV3puaibGKFHi0mofhaH05kipz016580bHFP86JQPDHDdx/QtqR:wTgvmzFHi0mo5aH0qMzd5807FPPJQPDV

Malware Config

Targets

    • Target

      JaffaCakes118_b08d498e51aef841f6c272ad42e9a028

    • Size

      320KB

    • MD5

      b08d498e51aef841f6c272ad42e9a028

    • SHA1

      2e3cca8351bedaa59422dcf19a7b7708b8d5cc65

    • SHA256

      cf415e21ed6dee9713e1c4687e77a6034b0792bdc8dee245b3eeb900278552b5

    • SHA512

      4bd556a25b796452b11f782729d35a79027c486e8ad4c270a8d46c44d799548c895b06776f47615128d4373ce6bbf40d757e703b7121fbd1725e10f33df82977

    • SSDEEP

      6144:uTw1o1IV3puaibGKFHi0mofhaH05kipz016580bHFP86JQPDHDdx/QtqR:wTgvmzFHi0mo5aH0qMzd5807FPPJQPDV

    • 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