General

  • Target

    JaffaCakes118_acd201e3179f1bea3176625e53ae74a0

  • Size

    1016KB

  • Sample

    250411-ejr9nsyqs3

  • MD5

    acd201e3179f1bea3176625e53ae74a0

  • SHA1

    16aba416493d24d4fcc7f94133da3a3bc328016c

  • SHA256

    5362c09319c951bf520453f62ce8e2b521322aaed60b929fe2cb4f11085d0250

  • SHA512

    f3234c90de201c62cb1ec4f101cc017289960916a98452a65500cadc3ec181a01a200381660e5789b99673d6db827fa6cfa96fe812e7540c88b01e59662a99ba

  • SSDEEP

    6144:8IXsL0tvrSVz1DnemeYbpsnEf78AoXh6KkiD0OofzA+/VygHU:8IXsgtvm1De5YlOx6lzBH46U

Malware Config

Targets

    • Target

      JaffaCakes118_acd201e3179f1bea3176625e53ae74a0

    • Size

      1016KB

    • MD5

      acd201e3179f1bea3176625e53ae74a0

    • SHA1

      16aba416493d24d4fcc7f94133da3a3bc328016c

    • SHA256

      5362c09319c951bf520453f62ce8e2b521322aaed60b929fe2cb4f11085d0250

    • SHA512

      f3234c90de201c62cb1ec4f101cc017289960916a98452a65500cadc3ec181a01a200381660e5789b99673d6db827fa6cfa96fe812e7540c88b01e59662a99ba

    • SSDEEP

      6144:8IXsL0tvrSVz1DnemeYbpsnEf78AoXh6KkiD0OofzA+/VygHU:8IXsgtvm1De5YlOx6lzBH46U

    • 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

    • Blocklisted process makes network request

    • 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