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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/03/2024, 17:56

General

  • Target

    2024-03-29_bfb12bc505ca7736641758ac7b36758b_cryptolocker.exe

  • Size

    64KB

  • MD5

    bfb12bc505ca7736641758ac7b36758b

  • SHA1

    40386403a0552097580e60ceb22506c92d24d65e

  • SHA256

    12dd746c4fb22315953508e7e85a0702c088607682e8da266f41379dc7d46e71

  • SHA512

    72e8dc462484cc7579a573148c0eeb837fae61d89883ed5bb796b0d51c429e5cdd3c579db04aea3984194e7bfbb286a82cd3e09375723ad5fa9b29509b511df3

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEMpf:6j+1NMOtEvwDpjr8ox8UDEI

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-03-29_bfb12bc505ca7736641758ac7b36758b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-29_bfb12bc505ca7736641758ac7b36758b_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    d6669ac16d0906a3749e3f9579686295

    SHA1

    ad46c28f2ab888c806b39f3c215b74b24a9e61e2

    SHA256

    dd7082697e9f668608062fe6a2f57340899afef87d1003134659974f309afb49

    SHA512

    4e7651402ef1a48a173e12bacbdbe3e91d6ad804b4ff64f11c67cacb818403b7f8d7f4971b5aee6ef7cacff7a848130a064ad3810606b30747059bfd86efe487

  • memory/2084-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2084-19-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB

  • memory/2084-21-0x00000000003A0000-0x00000000003A6000-memory.dmp

    Filesize

    24KB

  • memory/2084-28-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2856-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2856-1-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2856-2-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/2856-6-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2856-14-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2856-15-0x0000000001F30000-0x0000000001F3F000-memory.dmp

    Filesize

    60KB

  • memory/2856-27-0x0000000001F30000-0x0000000001F3F000-memory.dmp

    Filesize

    60KB