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Analysis

  • max time kernel
    140s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2024, 15:14

General

  • Target

    2024-01-03_321072160eed4640ce9938dfe953b07f_cryptolocker.exe

  • Size

    56KB

  • MD5

    321072160eed4640ce9938dfe953b07f

  • SHA1

    9d1715056e177a662eee637bff122e9aabdffb9e

  • SHA256

    66bb57f798b2f12c8b9ea26e7c240ecfdd09376f16734f1e155953f30730727d

  • SHA512

    17eafe935020bd2f240a6b4eb7e740fd1a00717cb9032088725b880cb25ee5cebf83441cbbec7077341ae26f0a9f2b0085f1f10d81ad210b0d2be4ddf0c73e4e

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb611Z:BbdDmjr+OtEvwDpjMN

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-03_321072160eed4640ce9938dfe953b07f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-03_321072160eed4640ce9938dfe953b07f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    56KB

    MD5

    7f85b9b4b0cbc037a180d9d6e2ab71b0

    SHA1

    2bbbe70da70d2b2c6e4114c391bd2c576e8c3d6a

    SHA256

    b426e5874d421055e6ade71d3e5658b0ba946cf5119cb9220eb943e2d6d4b7fd

    SHA512

    696068124f67d821f224eb803553342bde18670c9dcd6fd883bb9f92aceaf82de9a26da8f702e6c282bc48ac5b4ca659af4492bed930efa886bb907edbfda650

  • memory/2972-1-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2972-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2972-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2972-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2972-2-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/3040-20-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/3040-18-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/3040-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3040-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB