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Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 07:40

General

  • Target

    2024-05-30_ff8423649e5a9a243123efab8e22c303_cryptolocker.exe

  • Size

    97KB

  • MD5

    ff8423649e5a9a243123efab8e22c303

  • SHA1

    6c88d101ddd8633c29350a592b62c98e4c5f3449

  • SHA256

    dbc1484c7f2edb0e09dca1c54f0800e2c6aff0c66d176c95f5677a2bb2531f9d

  • SHA512

    9c0d330343e05b1bf3d836497cd25542636d0650a1bbca95322118c1a9739dac22507a30d3566837f4fe3c2edc9a10ef9850d0f9a89c352bc686147d43fc48f6

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp0M:V6a+pOtEvwDpjtzk

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-30_ff8423649e5a9a243123efab8e22c303_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-30_ff8423649e5a9a243123efab8e22c303_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4904
  • 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=4000,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
    1⤵
      PID:3988

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      97KB

      MD5

      df87e2c1dcaa17c01fc2e27ca4471ff8

      SHA1

      4ff714643722a7442d30a9108f4f05d997819649

      SHA256

      6b0139657e65737c9c4784aa1906271a46228228e501814713a33ea58eddbb26

      SHA512

      27c6c5d9bbd8d28184a2266498bd9ee41e2630380ee36079c11dbe26762ae1cc830eef73e9d677c13cf7b4a851911a65dffb8174f21b108bb3e6398c69558d84

    • memory/2028-0-0x0000000000620000-0x0000000000626000-memory.dmp

      Filesize

      24KB

    • memory/2028-1-0x0000000000750000-0x0000000000756000-memory.dmp

      Filesize

      24KB

    • memory/2028-8-0x0000000000620000-0x0000000000626000-memory.dmp

      Filesize

      24KB

    • memory/4904-17-0x00000000007D0000-0x00000000007D6000-memory.dmp

      Filesize

      24KB

    • memory/4904-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

      Filesize

      24KB