Analysis

  • max time kernel
    149s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 23:06

General

  • Target

    10d88abdda27a124d20b2a9eb6812d3e_JaffaCakes118.exe

  • Size

    252KB

  • MD5

    10d88abdda27a124d20b2a9eb6812d3e

  • SHA1

    a416178b7f4aee238aa6228f4625c0effc4c206b

  • SHA256

    79670c5b264d385edff432a513ec43a3b180a922ccab0529fa2575250b5511d4

  • SHA512

    3246c68c34c108c7a61a3392729830a55adfdb1f6675d39b80de136c8af3483016bdf314fb58b5eb7181f6b06742eeb6485fefce7088e19c68b10509b988a071

  • SSDEEP

    1536:kwIwL0Wzs/RbgE3vo97thU0CNY+cdoFlVxEz/c2JYO8VUmnbfzFHfz8sFBpYWC/k:ll0WigYg9bVtgfzFHfzb51QRPr8GDi7

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 52 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10d88abdda27a124d20b2a9eb6812d3e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\10d88abdda27a124d20b2a9eb6812d3e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3980
    • C:\Users\Admin\kounub.exe
      "C:\Users\Admin\kounub.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1312

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\kounub.exe

    Filesize

    252KB

    MD5

    75c9a1bf50a090a9d0c4c1dae7d04333

    SHA1

    5a8f1554951880dafcb555821504ecbd96bfcd8b

    SHA256

    88c4fcff8fd584153449cea8081e4c4fd70c21ee15d07dab3b5d4b21c6ff4139

    SHA512

    5edee8288a9772796519d83e0eb74a07d411c4f37ea61e745599733bd97415df82fb7074909ad852a40eedf130652c88b846160d37b02f79b22bfc5e5d864887