General

  • Target

    JaffaCakes118_9c32060e4f91fa6896de7b3165f46572

  • Size

    736KB

  • Sample

    250406-w1jgjaxrw6

  • MD5

    9c32060e4f91fa6896de7b3165f46572

  • SHA1

    0fd69104f08e49146afbfcdba7afc5d6704e6a8e

  • SHA256

    3e459c36d72abfc430934d835e538801239054ff3db1d2d7883b619a3dbbf9b4

  • SHA512

    ed7f91180e38ae997933be35212db8c70c7395536f4a11fc1adc978089d4ed6252792054b8a4c0290cd60223ef7a85bb75d39c3bd6c8506e7173541ca01df432

  • SSDEEP

    6144:afo07quWYWTtLsb/wBbgH3mOUEajEQYXrjWNp3sprxxGIOTs/IvAz5mJH1l4BrJd:0o07uXlkH2Ooqj4WSIozvA5mJHIx/

Malware Config

Targets

    • Target

      JaffaCakes118_9c32060e4f91fa6896de7b3165f46572

    • Size

      736KB

    • MD5

      9c32060e4f91fa6896de7b3165f46572

    • SHA1

      0fd69104f08e49146afbfcdba7afc5d6704e6a8e

    • SHA256

      3e459c36d72abfc430934d835e538801239054ff3db1d2d7883b619a3dbbf9b4

    • SHA512

      ed7f91180e38ae997933be35212db8c70c7395536f4a11fc1adc978089d4ed6252792054b8a4c0290cd60223ef7a85bb75d39c3bd6c8506e7173541ca01df432

    • SSDEEP

      6144:afo07quWYWTtLsb/wBbgH3mOUEajEQYXrjWNp3sprxxGIOTs/IvAz5mJH1l4BrJd:0o07uXlkH2Ooqj4WSIozvA5mJHIx/

    • 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 v15

Tasks