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Analysis

  • max time kernel
    138s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/04/2024, 07:38

General

  • Target

    2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe

  • Size

    75KB

  • MD5

    94c1d432b9ea1407f366c34640c0d0ac

  • SHA1

    72184af1429f4e6c635ae446729dc82fc498ce68

  • SHA256

    7e898c2f066b03a45b364fec955a5992e80875d8c11d78f1e678a66efea056da

  • SHA512

    1f3346932e799bca96e49a85734c213823cdc12022e8321eb2e0c9e8c5b01090603fa30ab05d0bd7b57f8146251156b73b81ab3aaf48533ea8fa01fc938e5255

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUz:ZVxkGOtEvwDpjca3

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\2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3128
  • 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=4420 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4684

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      75KB

      MD5

      48a715030283f1ff33619ac9698b2dc4

      SHA1

      24d6191307457ed89f8db244c67cb75dad669694

      SHA256

      684c007f03555fb802071c97bd5b4a298ed67ff92ffeba06bcfb30554f7c0691

      SHA512

      441fd46e35f91ec7fdc61698ae58cf3646d11b0a870fdd46119272c5fa83db7770d45cbf1f687a346dbc685928c16c04d15213457cb8fc13d04d14509f10125c

    • memory/2252-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

      Filesize

      12KB

    • memory/2252-1-0x0000000000670000-0x0000000000676000-memory.dmp

      Filesize

      24KB

    • memory/2252-2-0x0000000000670000-0x0000000000676000-memory.dmp

      Filesize

      24KB

    • memory/2252-3-0x0000000002080000-0x0000000002086000-memory.dmp

      Filesize

      24KB

    • memory/2252-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

      Filesize

      12KB

    • memory/3128-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

      Filesize

      12KB

    • memory/3128-20-0x0000000002070000-0x0000000002076000-memory.dmp

      Filesize

      24KB

    • memory/3128-22-0x0000000000660000-0x0000000000666000-memory.dmp

      Filesize

      24KB