Analysis

  • max time kernel
    148s
  • 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
    06/06/2024, 12:44

General

  • Target

    2024-06-06_30faaab6706d6c5a82c26c13a2df867a_cryptolocker.exe

  • Size

    43KB

  • MD5

    30faaab6706d6c5a82c26c13a2df867a

  • SHA1

    01467fdd891e7a717916bcec100b4cc1840e3c1f

  • SHA256

    df83fe03c2ce3e76fabf8a07cdab459a0ef74f385d678ab1f8602ec57fcae494

  • SHA512

    520092f2720d0f3af840edb02b97b0687b31be63b17d31ac5c4dc88449281d4343136e75186c7cd1f16131a233fa0662b34acf0a058060e8ac260aa99415d73b

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnY1n9a:m5nkFNMOtEvwDpjG8hgpY19a

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-06-06_30faaab6706d6c5a82c26c13a2df867a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_30faaab6706d6c5a82c26c13a2df867a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2828
    • 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:1556
  • 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=3744 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3908

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      43KB

      MD5

      14e83c554422ecd08bcd0c2bf2c81595

      SHA1

      343428c2681d8c0d8d5de51730f981de7297a2ad

      SHA256

      0e7e5733a40e87351f971bd1e78ef0bdf888bc8ebca56a99625a70bddd4b4076

      SHA512

      c5e67320833767787196f37b87569744a18b7bde6902587ac23e794c45f243bb3680090378c25791a66218ec198204dddf506b0647f19f0c1fe41321a168bb8e

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/1556-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/1556-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

      Filesize

      24KB

    • memory/1556-48-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB

    • memory/2828-0-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB

    • memory/2828-1-0x0000000000670000-0x0000000000676000-memory.dmp

      Filesize

      24KB

    • memory/2828-2-0x0000000000670000-0x0000000000676000-memory.dmp

      Filesize

      24KB

    • memory/2828-3-0x0000000000690000-0x0000000000696000-memory.dmp

      Filesize

      24KB

    • memory/2828-18-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB