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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
    06/03/2024, 05:45

General

  • Target

    2024-03-06_414d3d9ef97fb36290cf05571de4dfa8_cryptolocker.exe

  • Size

    46KB

  • MD5

    414d3d9ef97fb36290cf05571de4dfa8

  • SHA1

    0888d4e9131fee41f437603d646aada4f822a398

  • SHA256

    1e1b3a6dc8a201a3c4c76c974c91ce45a3e106e236aadc890cd4e47216d00326

  • SHA512

    00137c776e250f63ec62a284c23099954c5221ebeef8f887d13df23719245bcfcb8b8dce98d38798247dd2fe81877d3d826fc2e7e252505e9a01aa6767af5772

  • SSDEEP

    768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05W2Mobpr:qmbhXDmjr5MOtEvwDpj5cDtKkQZQ3

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 7 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 6 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\2024-03-06_414d3d9ef97fb36290cf05571de4dfa8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-06_414d3d9ef97fb36290cf05571de4dfa8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    4f3e334cd132ca464b786aa85327bf4a

    SHA1

    b653644ec24a118d57a257b93dda038b66d559c7

    SHA256

    35d16c70121b34cfa13e8211cb7167ec177c46c11de9be857b508b6d14291b8e

    SHA512

    52ff1e73cd8deddc46c776c737b7fe28d83966e6a3e8ba9cf892229def8512733a41b7f471dc45c79a967fc378a1d7fc3fc31ecd376a0ba0b1b50bfc7a9558b2

  • memory/2556-19-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/2556-21-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2556-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2556-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2784-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2784-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2784-2-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2784-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2784-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2784-16-0x00000000004D0000-0x00000000004E0000-memory.dmp

    Filesize

    64KB

  • memory/2784-28-0x00000000004D0000-0x00000000004E0000-memory.dmp

    Filesize

    64KB