Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2024, 07:35

General

  • Target

    2024-06-09_ea6e53294e98c5677422230ac9a313e4_cryptolocker.exe

  • Size

    78KB

  • MD5

    ea6e53294e98c5677422230ac9a313e4

  • SHA1

    64aa7c5c0da32dd565138d10e19283be2d1fb339

  • SHA256

    25e58a131929a1ad3fad20770c5147e74416ae48d6a40476f06d67ea49e6e3f7

  • SHA512

    3b8e6dfe4a6fc2ca573f4ab9000f12797a7d2435aa230155d70ec79f9c6d57b637b890b96b3a5918916b5d877e26cb834fa8c9421f479413186992f54244b443

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUx:ZVxkGOtEvwDpjcaF

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-09_ea6e53294e98c5677422230ac9a313e4_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_ea6e53294e98c5677422230ac9a313e4_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    78KB

    MD5

    f05cbd72e0643adc441607561d802b6e

    SHA1

    3381af18da5b8dd8543423d67ae84ef69da581c5

    SHA256

    228ee8de02912dc9fed851d3aaa0db866573d10d6c6b2e8bd3950bd3b0ebaa55

    SHA512

    a8b87bccc245fe57e0fac419e0ddc1c8e812b11da87d26de9bcb8a78735500666e9b778d4a7d2ac7f0345bd9d0551f0ec276324450bc300d402515f93ee0de9d

  • C:\Users\Admin\AppData\Local\Temp\misids.exe

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1324-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/1324-26-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/1324-18-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/4884-0-0x0000000000490000-0x0000000000493000-memory.dmp

    Filesize

    12KB

  • memory/4884-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4884-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4884-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4884-17-0x0000000000490000-0x0000000000493000-memory.dmp

    Filesize

    12KB