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
    01/06/2024, 22:45

General

  • Target

    2024-06-01_cbe3e38085f160d7effd3d69f7034322_cryptolocker.exe

  • Size

    44KB

  • MD5

    cbe3e38085f160d7effd3d69f7034322

  • SHA1

    edc3eef9306d2893715fe399faa25eb7e968ac67

  • SHA256

    f8af92ecfbdf6a98afd554399616eaaf73106da6a4d2c4d17b402e7fd23a51fb

  • SHA512

    4f51db9d318595d281740b4f7b594e660531f44fe4b4d147a8255912ef5576298aacef1bffcebaf865e4c132142e706d5236a1829b51245495b560876652cd1c

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aM1Oc:6j+1NMOtEvwDpjrRr1x

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-01_cbe3e38085f160d7effd3d69f7034322_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_cbe3e38085f160d7effd3d69f7034322_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2352
    • 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:2964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    abcc5cf7928d14a158ce0537adbe843b

    SHA1

    8c56a74bb9b147a0fc6db7c9f7585a9c545c2cc2

    SHA256

    52f9bf50051a9f45c0d2dcc0a451975f5e6cbaf2515367451d62240517db530f

    SHA512

    ac07ed2e210bc75785a4308986e0bfb272a88b8fe3de36b328ef1fc740c10db8309dea9e726aa085e3ea67f50f43c46b5855de6ae76acc2d8967c1dd0fc0578b

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2352-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2352-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2352-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/2352-9-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2352-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2964-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2964-21-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

    Filesize

    24KB

  • memory/2964-20-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/2964-49-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB