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Analysis

  • max time kernel
    150s
  • 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
    18/03/2024, 21:24

General

  • Target

    2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe

  • Size

    92KB

  • MD5

    0c6bd53dd3bffbb0294ab15bb07cbb61

  • SHA1

    f1afbf28f9e767d00f454f1ec3fc5dfac2ed82cf

  • SHA256

    e7acaaee10b41d4bfd135d5f0842f9cd29a9b0805d303b902df1d36be0e507ff

  • SHA512

    26d51d365d05250c27eecf425555c2b6e66bf435e522470034a32548081eaff8db2ccd6a8a759b6e1d8f4394330f30f89a2c739aef4690053201567405aad3fb

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMg1:V6a+pOtEvwDpjtz5

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\2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    92KB

    MD5

    5dd0cec4c92c3156930920c326ff2fe7

    SHA1

    188e1c0140b8dbddf3427dbc4f2f7db099561a13

    SHA256

    3801ea5b321c14153230518c4361c8ed48b3e479b8899927e250d14220e2a1c6

    SHA512

    f561c5dfffab2801fa58fb5b4d389952a20308c03eb14bca5f851192dbc9b6315853315876fcb08c09236ef0bba32bcf37dbbcb6c0196baec93cfae915f9e636

  • memory/2148-0-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB

  • memory/2148-1-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB

  • memory/2148-2-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/2520-17-0x0000000002110000-0x0000000002116000-memory.dmp

    Filesize

    24KB

  • memory/2520-18-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB