Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 18:26

General

  • Target

    2024-06-01_591e76dd1f35231887a39966c2148fb9_cryptolocker.exe

  • Size

    69KB

  • MD5

    591e76dd1f35231887a39966c2148fb9

  • SHA1

    5b032aa85c8a2e3f3c5c2629e8cd896d9e8c5235

  • SHA256

    09d5aa573e53136fb60dbd62bf242901248d694afc52ab4c5105f685e7044c4f

  • SHA512

    c1e62dec0aaed3d97081bc809e899c2d301f8ee32ae0d1cbd28f49caa88676371fffc2194f01f158ffab4a2c8e2863086e8969f3b607c41e9e83b8d0ce49d696

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dh:i5nkFGMOtEvwDpjNbwQEI8UZD7

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-06-01_591e76dd1f35231887a39966c2148fb9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_591e76dd1f35231887a39966c2148fb9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1540
    • 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

    69KB

    MD5

    f4f111462cc682d01cbf2d22d5f641d5

    SHA1

    e3b4941cd3de94d8669de343416e1771bc9cbf34

    SHA256

    3743c1c52d6db73fc1cabd463faffec1900f97069ac53719da11c18c0b2b7534

    SHA512

    22db08692e08e027e8a3bb1f89fe14e09a5e07f01082b3be8c6566328e90a59edcbf1468273c6861101796ed4f668c352bfa526514dd8377bf9538924bb3c046

  • memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1540-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1540-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1540-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2516-18-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2516-25-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2516-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB