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Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/03/2024, 19:28

General

  • Target

    2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe

  • Size

    46KB

  • MD5

    2c0d040453588ba8f73b651dd7b305e8

  • SHA1

    ded1c25016cdb58e3c499a2141ba981d646678cc

  • SHA256

    1a8cc06a7133f7d356c4d6b86d71157f339feef99ec5dc7789273ff83f5730c7

  • SHA512

    ed63e72fcd91a6d83af7d3cac635a907bc660d5b7a6988a14bab14edddf7600b6038a89afa0593072ee2aa7fe6f3692c74f1f593aa296e4c2dfd2e7cb24c4eaa

  • SSDEEP

    384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlI0G/BdK:XS5nQJ24LR1bytOOtEvwDpjNbP/bK

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    80a572072471e19d344b33f19764314a

    SHA1

    59511db25b623f7d4a7e8107768d53ffb431ff9e

    SHA256

    42cab56855d93625cc53f081e402f9618ab3c3b0bca9a45e779b4b5cfc71310b

    SHA512

    91abdfc4ce90da68747ad45bacce0c7f9c48ea08ceb81e1ead36cca67057911661121904486116f6e096d98245d54861a055adb5902d9da817b55ed225cd832f

  • memory/916-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/916-1-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/916-2-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/916-3-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/916-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4788-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4788-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB