General

  • Target

    JaffaCakes118_dbfebfcccbacf0bab0c6674b3ba8ea91

  • Size

    320KB

  • Sample

    250428-eellbs1tcx

  • MD5

    dbfebfcccbacf0bab0c6674b3ba8ea91

  • SHA1

    0265115662ff1c6cecd153525c3e88d8439708a8

  • SHA256

    296968043dbf6bcf99749b25fbddca245ca799d7d7f74430f0ab76097cd5b42d

  • SHA512

    a36c181b448ce5cc71fb8061e77bb6306a9de522814763197349527dde889c28fc4f0ad60f3aef6a8a01ab86fa0c27e90a4e50475ec015c9c40c328698feabe7

  • SSDEEP

    6144:hTwEo1IV3puaibGKFHi0mofhaH05kipz016580bHFMdkhq86JQPDHDdx/QtqR:5CgvmzFHi0mo5aH0qMzd5807F7qPJQPx

Malware Config

Targets

    • Target

      JaffaCakes118_dbfebfcccbacf0bab0c6674b3ba8ea91

    • Size

      320KB

    • MD5

      dbfebfcccbacf0bab0c6674b3ba8ea91

    • SHA1

      0265115662ff1c6cecd153525c3e88d8439708a8

    • SHA256

      296968043dbf6bcf99749b25fbddca245ca799d7d7f74430f0ab76097cd5b42d

    • SHA512

      a36c181b448ce5cc71fb8061e77bb6306a9de522814763197349527dde889c28fc4f0ad60f3aef6a8a01ab86fa0c27e90a4e50475ec015c9c40c328698feabe7

    • SSDEEP

      6144:hTwEo1IV3puaibGKFHi0mofhaH05kipz016580bHFMdkhq86JQPDHDdx/QtqR:5CgvmzFHi0mo5aH0qMzd5807F7qPJQPx

    • 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