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Analysis

  • max time kernel
    125s
  • max time network
    129s
  • 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, 23:52

General

  • Target

    2024-06-09_f80ecf9a0b1a62f65a57a20e65c16cae_cryptolocker.exe

  • Size

    50KB

  • MD5

    f80ecf9a0b1a62f65a57a20e65c16cae

  • SHA1

    cb676236a2ef58b471f9a10cf9a9eb780efd2776

  • SHA256

    eec575180b9d9119bc3d99f647762552d41964efe4342032dd510f30e9ba3ec4

  • SHA512

    f372c6774eb29d8caea22cf23d8194e8f5563d13d2167b81117c556d6fe31cbdc98fbc772c3d43e2587ff35f91de7370cb8b197d0684a6c44ae3fa4a3c08fbb1

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ15x8GZ:ZVxkGOtEvwDpjcw

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_f80ecf9a0b1a62f65a57a20e65c16cae_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_f80ecf9a0b1a62f65a57a20e65c16cae_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3992
    • 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:5056
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3416,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=4312 /prefetch:8
    1⤵
      PID:2700

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      51KB

      MD5

      fdafc40a2c9a990cd144e912c071a7c7

      SHA1

      1134c8e649887bf7e43d56765b6f42f590045f4d

      SHA256

      44d64b2b2c1abf80df6a36dc66f2ea752b92c03a11ec3d7f7cf4a50bebd7e2f5

      SHA512

      3b1b3a6aa3117a7a533ea387ab7e9a22b4a5cbb7412bf6823e47b48c4e352fafd2b62fd6e168033a7f88ab2f5596057e1f8a729d1e73faf63361ae4329d8e218

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/3992-0-0x0000000000450000-0x0000000000453000-memory.dmp

      Filesize

      12KB

    • memory/3992-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/3992-2-0x0000000002080000-0x0000000002086000-memory.dmp

      Filesize

      24KB

    • memory/3992-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/3992-17-0x0000000000450000-0x0000000000453000-memory.dmp

      Filesize

      12KB

    • memory/5056-18-0x0000000000450000-0x0000000000460000-memory.dmp

      Filesize

      64KB

    • memory/5056-20-0x0000000000590000-0x0000000000596000-memory.dmp

      Filesize

      24KB