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Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2024, 08:46

General

  • Target

    2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe

  • Size

    38KB

  • MD5

    4dfde65883622886081b56a2c140549e

  • SHA1

    e10058f757674ad20805b1453df79f9974a42c12

  • SHA256

    9e8d7808d711f34c396d6252896d7522b961f2e328de7b0ee6b25d78af259911

  • SHA512

    94f6e68c0bf8c45289dfef43bdad9028acdf52aa76c32d983aab2f70bc22410413a63d88dc5458178a04ca191735bf50d2db5cedd1c497327942560b16a6edd5

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnG:m5nkFNMOtEvwDpjG8hgpG

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 6 IoCs
  • 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\2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    7246a51d4bc3158ada592f1ee54bc0d9

    SHA1

    46a3e902617540804d27ba530bf5ae0670262976

    SHA256

    0d90f203a3c14b68be955c99e061939b09681eaa3f6a907e7bc6459a2fd1c8db

    SHA512

    bd7ab9e9031aa77c6a550ce034a2cf08119dd83034cf84255f9171d15078780b9b743fe2257ffce492aad813bcca0851db7c9f42a37b7bb1a5e4711ee0482510

  • memory/2324-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2324-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2324-27-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2536-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2536-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2536-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2536-8-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2536-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2536-13-0x0000000000630000-0x000000000063E000-memory.dmp

    Filesize

    56KB