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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2024, 07:43

General

  • Target

    2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe

  • Size

    75KB

  • MD5

    cb88277afe215a053c4cfe621d32f00e

  • SHA1

    7694d6fba42a84c586a9a2ea0204000612b9edce

  • SHA256

    8a732c045288710bd82c8133329103f3e141ae266c7d455a11687a2b8accf913

  • SHA512

    74a816dc52a9ab8ab173974f29990aaa4036b18319293c1811a4ee37a04595f57d36cbe3e3698c50da2bcec7f9f540d22f57def8501ce488c5c5d59f81431445

  • SSDEEP

    1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkE:X6a+SOtEvwDpjBZYvQd2r

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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\2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    25e3b8e6c9570283ea48d966caa03b73

    SHA1

    150b935b9ef34720e1f0307107ca823a88435952

    SHA256

    c4b8a2dcebfcdd06fa7d4b8f0e08a6eb318ca4a1483a30765011c9b2c3b41868

    SHA512

    6a251eba068ce00c41e331b014940af179d82f941579c0130188513122dd770f2b0d8d55b4c18f48c2433915b3bd5ac55200b5177d62d38c13e6ce794b9db469

  • memory/2652-15-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2652-22-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2948-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2948-1-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/2948-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB