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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/05/2024, 12:28

General

  • Target

    2024-05-01_2517490a50f52adf5fd3506e33a88914_cryptolocker.exe

  • Size

    55KB

  • MD5

    2517490a50f52adf5fd3506e33a88914

  • SHA1

    712db91bd47ba39d35aeccbd9bb9dfd1b75cdee5

  • SHA256

    a81ab28d9bb0c0c99d5a93ea70711ebd7a25da6300e527b57fc8e0d80acc437a

  • SHA512

    d251954f44b993e2a96a4070cea987a8fd62278e01c7d1031f2af041b2eefef8747028b32ff35163acdb3c3ad8d9c22476ffacf95ab4836362fbb8195a916d08

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb6ImpyM:BbdDmjr+OtEvwDpjM/

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 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\2024-05-01_2517490a50f52adf5fd3506e33a88914_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-01_2517490a50f52adf5fd3506e33a88914_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    55KB

    MD5

    157d17cffd44e338604867553107e63c

    SHA1

    495bd067dd10551dc449906b9bcbb8963d914ca6

    SHA256

    8fa7bd02b2f0223533e4a5e4fb7cd5a578cdf681c7db4516ea79edae315e044f

    SHA512

    4467e08d5316f573ceba4e72c3461d37b2632dcee5de716e84f4e27c125df4d131df771b7bc89119a7958d31cf4f556cb877092102901f68a7f20de78938f590

  • memory/2464-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2464-26-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/2464-19-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2464-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2876-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2876-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2876-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2876-3-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2876-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB