Analysis

  • max time kernel
    145s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2024 05:57

General

  • Target

    2024-01-09_8360b48378cfcb7fba3bcaf95efa3062_cryptolocker.exe

  • Size

    59KB

  • MD5

    8360b48378cfcb7fba3bcaf95efa3062

  • SHA1

    0f71591b9ee78dfa7ba364f9eae9b7b72e1fb8f5

  • SHA256

    a7313f0aaae9996b06725f35437721d0e9095e57a01aa38d04a0db54bc901b41

  • SHA512

    659d215026bf51eabc5a16b2db23fcac2baa71887f2cbf4173cb18491ddac5280d59371b352a7abc0c65754c5a8ec522dbec39625a2a8a4ef7404f28956b6fac

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMH:TCjsIOtEvwDpj5HE/OUHnSMI

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).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-09_8360b48378cfcb7fba3bcaf95efa3062_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_8360b48378cfcb7fba3bcaf95efa3062_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2188
    • 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:4748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    59KB

    MD5

    9c19d2e80c201a066a1563febef94702

    SHA1

    ba3b873ea9bea85b5a74b42445620e16b5240a94

    SHA256

    518158d6daaa2647b487737034435e81f146ae383cee3d783eeddfe89908c396

    SHA512

    e9ba0d0d4b8ab40d6c95cb980891115f34adcd703412cfd0d96e4ed327409bfdd8d8387fcc463616f5b74079f723cfeda959540312a5c85c70ba0ab49454a224

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2188-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2188-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2188-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2188-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2188-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4748-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4748-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4748-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4748-37-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB