General

  • Target

    JaffaCakes118_a0ca1f567afd80fbce8fb48932906df8

  • Size

    320KB

  • Sample

    250408-v5mjbaxkt3

  • MD5

    a0ca1f567afd80fbce8fb48932906df8

  • SHA1

    877bfd1e067aa681c9f4157277202a8179a8f3a8

  • SHA256

    4f21a28a003340ef8cdcc754bb827e53c5b1a55cb7f76eb975c46fba1490d8dd

  • SHA512

    8823fd83baa382ac451644316c035d99e372bbeb13c79d05603e6d20a7951a17f72eee4faae5497b96a51fa8c7984e5d5e7d4668e3f83eee41f46ee1c938e317

  • SSDEEP

    6144:mTwEo1IV3puaibGKFHi0mofhaH05kipz016580bHFMdkhq86JQPDHDdx/QtqR:4CgvmzFHi0mo5aH0qMzd5807F7qPJQPx

Malware Config

Targets

    • Target

      JaffaCakes118_a0ca1f567afd80fbce8fb48932906df8

    • Size

      320KB

    • MD5

      a0ca1f567afd80fbce8fb48932906df8

    • SHA1

      877bfd1e067aa681c9f4157277202a8179a8f3a8

    • SHA256

      4f21a28a003340ef8cdcc754bb827e53c5b1a55cb7f76eb975c46fba1490d8dd

    • SHA512

      8823fd83baa382ac451644316c035d99e372bbeb13c79d05603e6d20a7951a17f72eee4faae5497b96a51fa8c7984e5d5e7d4668e3f83eee41f46ee1c938e317

    • SSDEEP

      6144:mTwEo1IV3puaibGKFHi0mofhaH05kipz016580bHFMdkhq86JQPDHDdx/QtqR:4CgvmzFHi0mo5aH0qMzd5807F7qPJQPx

    • 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