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Analysis

  • max time kernel
    97s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 03:48

General

  • Target

    2024-09-21_f37dd9fd47938cb9f70690d973e5f11c_cryptolocker.exe

  • Size

    63KB

  • MD5

    f37dd9fd47938cb9f70690d973e5f11c

  • SHA1

    2a4ae2ed23a30ec2be6c58c35a8da3e08b62cec8

  • SHA256

    2f90ba0537f5097ddd529e2a44cef6207d1b91eb5018439a15319fdc05b25ec2

  • SHA512

    3e4fee0c866b1f3a11869ae98aeeed372193561e2d9e6b38c8b0fe78467c1fef455ad4737e95230d959bb9dfb20cceccd9a4dcd58ab4f5b91713f07cfc7e6f41

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ36ucN/:ZVxkGOtEvwDpjcaK

Score
7/10

Malware Config

Signatures

  • 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).

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-21_f37dd9fd47938cb9f70690d973e5f11c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_f37dd9fd47938cb9f70690d973e5f11c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    4390ae20b743e9620a749880b4ce2b71

    SHA1

    7a73f037184ac32bb3965f1ae6fd3e48f7cb46a2

    SHA256

    bb8db98e92ae86df9564b463c5fc6f19913bfbf24b117271447c046c7036f446

    SHA512

    ef660b837ba124a95be3bce547babc567e32d26bb6f9a1a2453704177bbc89e301f127e8d0954ef91ed5572d4013a7fcef2dabf467f9d4f91964fc4e12a61fe2

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1532-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1532-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/1532-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/1532-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/1532-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4128-19-0x0000000000530000-0x0000000000536000-memory.dmp

    Filesize

    24KB

  • memory/4128-25-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB