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Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/05/2024, 03:27

General

  • Target

    2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe

  • Size

    96KB

  • MD5

    463640dd22f95dbbf8847233914b807d

  • SHA1

    d9dd78de0cafa793d3e5e3f52aa3ef4c388422d4

  • SHA256

    f24ed1ef77f71fdc857911ced092bfde801b33d963f253d1a09c93c3d0907992

  • SHA512

    f253ebc9267f7867373464ee0ebca8fc650682639a0585796269c699fea37521059d5813394fa5a8ae80a3ec0c4c89f52773a5a2716e8036942a78148c773595

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgJ:V6a+pOtEvwDpjtzl

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\2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:412
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4452
  • 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=4080 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2108

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      96KB

      MD5

      670025c3d3a9993f2e5a3cedfa5c8b39

      SHA1

      d90249856a79791e9602bba9df203fb71f4acf4a

      SHA256

      895a004c5a9f312775ebbc5ecc6815aacaab23ad986ad4d3394e2294e09835d2

      SHA512

      cccd07eb896bafe988fa4ac87f006c0eecafabbbb99689d6c968d1ca5beb4d66e549b066837ee358f5e7baa0c9a741ba295efc5bb43b0e8e96363f83288606a0

    • memory/412-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

      Filesize

      24KB

    • memory/412-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

      Filesize

      24KB

    • memory/412-2-0x0000000002100000-0x0000000002106000-memory.dmp

      Filesize

      24KB

    • memory/4452-17-0x0000000002080000-0x0000000002086000-memory.dmp

      Filesize

      24KB

    • memory/4452-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB