General

  • Target

    JaffaCakes118_a65942c4e399055ecc58d48a11a412cd

  • Size

    320KB

  • Sample

    250409-xm2lmazvcz

  • MD5

    a65942c4e399055ecc58d48a11a412cd

  • SHA1

    7445a4d5717733b29ccc38630e16f84584c530ef

  • SHA256

    4bca110deeccbf903f25f0d8e9829e64d0cf8c811753ed28d4f61dbf963020e1

  • SHA512

    1db5c58f81ba920886c59eb74ae085c88b671d151f683894678c293aed810db45f4fb6975ee16bee911709033775ac6410475b6dcb03229e4d8e3cfaf923f802

  • SSDEEP

    6144:ITwZo1IV3puaibGKFHi0mofhaH05kipz016580bHFbl86JQPDHDdx/QtqR:mXgvmzFHi0mo5aH0qMzd5807FRPJQPDV

Malware Config

Targets

    • Target

      JaffaCakes118_a65942c4e399055ecc58d48a11a412cd

    • Size

      320KB

    • MD5

      a65942c4e399055ecc58d48a11a412cd

    • SHA1

      7445a4d5717733b29ccc38630e16f84584c530ef

    • SHA256

      4bca110deeccbf903f25f0d8e9829e64d0cf8c811753ed28d4f61dbf963020e1

    • SHA512

      1db5c58f81ba920886c59eb74ae085c88b671d151f683894678c293aed810db45f4fb6975ee16bee911709033775ac6410475b6dcb03229e4d8e3cfaf923f802

    • SSDEEP

      6144:ITwZo1IV3puaibGKFHi0mofhaH05kipz016580bHFbl86JQPDHDdx/QtqR:mXgvmzFHi0mo5aH0qMzd5807FRPJQPDV

    • 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