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Analysis

  • max time kernel
    129s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 04:22

General

  • Target

    2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe

  • Size

    32KB

  • MD5

    0cdcea499cbc4213d03d417c9b7c3b63

  • SHA1

    b93f68693724f41a1fbef06fa3dceefa933eb2ac

  • SHA256

    2e7dbd7dedf740e6c56433556a8020ba6240ea083a1b4bee13d90be2f520d683

  • SHA512

    5e7256059c283fa8f33f819aabcd5b39acb25f200d6af7e5a68a77131201e6232a5b2da9036d43a372605f5931bf0de302029310ae4d97ab9823bc02e9d69210

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7y:bAvJCYOOvbRPDEgXRcJu

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:216
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:4688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    32KB

    MD5

    979897bf147fe142e80c902798b6be25

    SHA1

    ba00ffe8847eea6367541283666d719d09982a98

    SHA256

    5f386a4c41613cc941e4debe49f86e5799a326096a4f2fd2db49f0d61de37f82

    SHA512

    868d87d394e703f0162e3eef6d3e6775403e824bf82ef985489cbc8145514f252a0c799c897174054e11cb7370a305f81834a30db7ecc43fa407bf1fc3abbff6

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

    Filesize

    186B

    MD5

    ccde01689041ab3e60b8de0fb80057bb

    SHA1

    a281294613466661d08de19126c4ab9c49fc5ba8

    SHA256

    a1b51ac6421650119a77155bfb9a2ae2582310054332f67ab7fe27088900e39d

    SHA512

    76d9ca84d1de2efaad266b6aa13634ed15da5dedfcd53d5cb6b91b7e64af50cfa6e769199036f20df22e52261903ba71a1f5b6ce0720f643bbdbabf60bdeae52

  • memory/216-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/216-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/216-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/4688-25-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB