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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/06/2024, 07:41

General

  • Target

    2024-06-17_ceb99002f2f1707ea6f7fec8bf91f041_cryptolocker.exe

  • Size

    88KB

  • MD5

    ceb99002f2f1707ea6f7fec8bf91f041

  • SHA1

    191d266421494891130c670b02f4c2ff94be81e8

  • SHA256

    6fd90a90070f0a59cdee89e70cd7acf38f415f55519a3dcf66deee0e5d3b69df

  • SHA512

    1e95b76da5f89a8e03a499e2f710d1451e16d4c272621830b3bfd555ed40928ae0d3652673b2cf66c1fca63cea582aef51265cd5802cf1f868779bdb087b4fcc

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBlQH:vCjsIOtEvwDpj5H9YvQd24

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\2024-06-17_ceb99002f2f1707ea6f7fec8bf91f041_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-17_ceb99002f2f1707ea6f7fec8bf91f041_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:212
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2196
  • 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=3756,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4396 /prefetch:8
    1⤵
      PID:3540

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      88KB

      MD5

      5577d46fa4cd37fae18314affcac94b0

      SHA1

      ee7f1c3575ee01dbb87cf100c91dc365a4bf69d9

      SHA256

      d37abbb4be9314155e8606722946b27be16ada4e0a85ee32818ba992c6c8156b

      SHA512

      110343fd7a2d7e96f4a377290c9a0cd4bedee21d4759be33759e335618678899f8d2bab60b49d4f5bd51f15ed67a5a025a0b81cac3fcc4ec19148d54cf5a19e1

    • memory/212-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/212-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

      Filesize

      24KB

    • memory/212-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/2196-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

      Filesize

      24KB

    • memory/2196-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

      Filesize

      24KB