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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    13/02/2024, 21:29

General

  • Target

    2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe

  • Size

    93KB

  • MD5

    5085ada1b0f46d6b4e692b4c937bf4dc

  • SHA1

    fb9f25e905385ba553deb2bbfd28a3c4769457eb

  • SHA256

    0da077d071fe7cd61a854d39f27a1f798094e462ce8b21497daa8aec4a83fe2a

  • SHA512

    fe98c79f9e8897c7e13f02aa77c7a3e758f2f54711741065fdf79e97e09dbdd68b94a39dc37bb0d4fd883342e61c045c6786034c1bd4f14b61ac3f89ba456d0b

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJyj:xj+VGMOtEvwDpjubwQEIiVmkuj

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 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\2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    93KB

    MD5

    e259857a6e56f2e87a69f9b29348cdd1

    SHA1

    a40d02693c2293e435f82772703acd4be709692b

    SHA256

    418b70d091c810a6ac427d8234233028b9ba31ea6ce2d37bd1daff5dfa00a5c6

    SHA512

    ef181275129554fb8d3b935293d5cbc0422d3f681ef6a74ff9a3a44da11f583633ea7db5ee2a6e5ddb4dbb009405af7937e2dfbaef3d8f376461fc196fbf1e81

  • memory/1464-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1464-19-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/1464-22-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1464-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1860-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1860-1-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1860-3-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1860-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1860-13-0x00000000024C0000-0x00000000024D0000-memory.dmp

    Filesize

    64KB

  • memory/1860-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB