Analysis

  • max time kernel
    93s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2024 09:43

General

  • Target

    2024-06-10_0fe632198ab026d02958c60edc63bd8d_cryptolocker.exe

  • Size

    56KB

  • MD5

    0fe632198ab026d02958c60edc63bd8d

  • SHA1

    0f5160a00f360f5a218c5c864e388526ecfe9f45

  • SHA256

    8f19b1b2a365a735a4a3754af3f2f9a303acf26d88797b8148a2b05e298b0c89

  • SHA512

    f2da1da13bb5f2204e495014f3d358d3366f632069121996764153a56a0b296bf370352e6ff9843af7aa262814181b30b20fb8269bea14f38a7034477b4ca390

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7/e6/:6j+1NMOtEvwDpjr8oxExe6/

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-06-10_0fe632198ab026d02958c60edc63bd8d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_0fe632198ab026d02958c60edc63bd8d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4308
    • 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:4152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    57KB

    MD5

    fc132c86e69e7c7154ec35b31ec84272

    SHA1

    c519d7ef125deb5a30f00f9cc3b52e0a86792a84

    SHA256

    2efae0f47e5682c63507520c5716918ce5e1f00a09f2c5268ac6f77e9048915b

    SHA512

    35c46824ade5bb0b8491f2367be68b1720b6657e0eb5cbaf90238943ef018da30bd689f87d011341357153d38c0f540f28d77969a203be39fa9cebc1a8c64254

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4152-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4152-20-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/4152-26-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/4152-49-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4308-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4308-1-0x0000000000640000-0x0000000000646000-memory.dmp

    Filesize

    24KB

  • memory/4308-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4308-9-0x0000000000640000-0x0000000000646000-memory.dmp

    Filesize

    24KB

  • memory/4308-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB