Analysis

  • max time kernel
    23s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 06:22

General

  • Target

    2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe

  • Size

    35KB

  • MD5

    07736eb5cf17a27831daade0d377be51

  • SHA1

    5a2762c77ffe0ed213f5b52fbc5d8af43fa31511

  • SHA256

    e52eb26a8ee2d0becc4d385b6a80713ba6a9596afda22dc6a4ed9acc6b5a0e9b

  • SHA512

    6b1f1ccd6ca81c2913982fea9e37c800bb16065f52e0f2829218323202363274f2f284405d4bc24aa90d49e2c83d986f6cf2aece9a7063b264ab35412536ae8c

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+T9sW:bAvJCYOOvbRPDEgXRc+BAILieW

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      PID:1204
  • 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=4004 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4200

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            35KB

            MD5

            1e5d9f0a015973378d5a03e496b25543

            SHA1

            af902f323d058c552e9cb5f5dac3c3f171ba0001

            SHA256

            cd02d9a83cc8bbc902766a039cde59f59f3f3633252404dee5569de9c83ba915

            SHA512

            fe467665030928a1a469da9b582e0a0d27cc4f5223826794a45c0fb2f392fc6f28d8de274c6cc5bc0c5aab0a4c7327baf2aa1956ab4b53f183a6725397b0d0a6

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

            Filesize

            186B

            MD5

            d808d9a55784b6d67a0b030f7d802673

            SHA1

            f7280cb07462353336cb58f567484ec69d2232b5

            SHA256

            bdea95bc2512fa84d9793027746019e462dde6bd563ad7c6cf61f20dd0e223c1

            SHA512

            76bc9ea582e12eddced8d6c89c1cde093d88c1e45592b93dadf12638299f0c442e65839a63ca0adfdb2f0f8bd1114fcbfaa9ebe0fca590c6a9c57300e9474f30

          • memory/1204-25-0x0000000002210000-0x0000000002216000-memory.dmp

            Filesize

            24KB

          • memory/3544-0-0x0000000000740000-0x0000000000746000-memory.dmp

            Filesize

            24KB

          • memory/3544-1-0x0000000000740000-0x0000000000746000-memory.dmp

            Filesize

            24KB

          • memory/3544-2-0x0000000000400000-0x0000000000406000-memory.dmp

            Filesize

            24KB