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Analysis

  • max time kernel
    151s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/06/2024, 18:27

General

  • Target

    2024-06-16_32e38a5e45a1213a2fd87d685f9d8eb4_cryptolocker.exe

  • Size

    47KB

  • MD5

    32e38a5e45a1213a2fd87d685f9d8eb4

  • SHA1

    b482ff4091fca8971099dd0e9b209eff821852f2

  • SHA256

    c1f636b64501de80ea07ae94219559bb9fb40dbe584b570714945a6bffd4b04b

  • SHA512

    dabb66da1ca6f54fc18abd4a8d877f114598ea5efe2bfcf489e035effb0579b4d616f293cef62a5d9f072dc65812dfabd9c4484b71a7a97372f272a0666a88c0

  • SSDEEP

    384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2Vr:79inqyNR/QtOOtEvwDpjBKccJVODvy3m

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 3 IoCs
  • Detection of Cryptolocker Samples 3 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\2024-06-16_32e38a5e45a1213a2fd87d685f9d8eb4_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-16_32e38a5e45a1213a2fd87d685f9d8eb4_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3696
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1232
  • 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 --mojo-platform-channel-handle=1340 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1088

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      47KB

      MD5

      ad23261eac318090d0cf1b0bf399bc72

      SHA1

      75bbf5bd6cbc0aee49213eb54380f2421320807f

      SHA256

      21b7e17ca20d6a556c27de25d193190a019ee3cb1656bac90f69b564fcb95a64

      SHA512

      3df335cb2325b811cf43a4dad7e5f5fab566b0b604ebd27ba96b7068f7bdcfd34ddf27b0045bad63fd4ad3263f4065aea1861f6cc3d7998516bf76afaab4e540

    • memory/1232-18-0x0000000000590000-0x0000000000596000-memory.dmp

      Filesize

      24KB

    • memory/1232-24-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/3696-0-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/3696-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

      Filesize

      24KB

    • memory/3696-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

      Filesize

      24KB

    • memory/3696-3-0x0000000002100000-0x0000000002106000-memory.dmp

      Filesize

      24KB

    • memory/3696-25-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB