General

  • Target

    JaffaCakes118_eaee1f74cc9ae31299b598b935bfead3

  • Size

    600KB

  • Sample

    250504-mr1vsatpt3

  • MD5

    eaee1f74cc9ae31299b598b935bfead3

  • SHA1

    806706c3745683fecab233611e394e0691f30438

  • SHA256

    3e06f56d26583dfba148969d99d8447a797f6b98332b553de2c3da2eb63f5239

  • SHA512

    013f118e254daa15a72692e22d8dad2a90ce701ef54a755827768932e6c2447c77566344f2e38c42f865e075710a17b59d640a88013e958254db786fa3559365

  • SSDEEP

    12288:l6onxOp8FySpE5zvIdtU+YmefaRfMMMMM2MMMMM:Lwp8DozAdO9aRfMMMMM2MMMMM

Malware Config

Targets

    • Target

      JaffaCakes118_eaee1f74cc9ae31299b598b935bfead3

    • Size

      600KB

    • MD5

      eaee1f74cc9ae31299b598b935bfead3

    • SHA1

      806706c3745683fecab233611e394e0691f30438

    • SHA256

      3e06f56d26583dfba148969d99d8447a797f6b98332b553de2c3da2eb63f5239

    • SHA512

      013f118e254daa15a72692e22d8dad2a90ce701ef54a755827768932e6c2447c77566344f2e38c42f865e075710a17b59d640a88013e958254db786fa3559365

    • SSDEEP

      12288:l6onxOp8FySpE5zvIdtU+YmefaRfMMMMM2MMMMM:Lwp8DozAdO9aRfMMMMM2MMMMM

    • 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