Analysis

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

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 19:11

General

  • Target

    20240521d51e71f7a3b7b5efac94d2ed5db31328cryptolocker.exe

  • Size

    44KB

  • MD5

    d51e71f7a3b7b5efac94d2ed5db31328

  • SHA1

    9757fb29701038d692473bde46b697d572874c39

  • SHA256

    c2c62e4be1d02350700e53114861f33dfe464bc230741dee1610ee0de9beb5aa

  • SHA512

    f493f8170919933fb18fb640b20d32bc52c2f9a2c4b826a24f55e16a11522d7f30f4868b075668ba6ddfc566bb2bc1024c4102b097fc7246a4b8451cc2185566

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDp:6j+1NMOtEvwDpjrRr1

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\20240521d51e71f7a3b7b5efac94d2ed5db31328cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\20240521d51e71f7a3b7b5efac94d2ed5db31328cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    94f25c923f8ccd5e46f3ae4f2821229b

    SHA1

    053090b2323bfa7460a912647e0960ac87ce995e

    SHA256

    57e541e9614da9690fb393df4e258f50385d141b78b300c90d5e9ea1870b8501

    SHA512

    c540dc266b615e2732d12c1bd464dd5b7d7c3e15b3905235d0cb814f1eed6ff57ef93a5f2b2b96ba7ce8da553329febe6dfe10a9101cfc0a6ecedd511a1c19fc

  • memory/2516-17-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/2516-24-0x00000000002D0000-0x00000000002D6000-memory.dmp

    Filesize

    24KB

  • memory/2516-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3040-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3040-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/3040-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/3040-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/3040-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB