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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    23/02/2024, 15:53

General

  • Target

    2024-02-23_f7847db467d8368c71b595ef8b4c4202_cryptolocker.exe

  • Size

    102KB

  • MD5

    f7847db467d8368c71b595ef8b4c4202

  • SHA1

    4e435052ba95a580bba63d50322a64c6e80924ef

  • SHA256

    ec6f9fcf58b33fb88eb194f7313814f939357a044adc6677ba8f14f6d973f554

  • SHA512

    d61037e9bf6979f436b493cac60a9a2fe2b71fe95cd577999213ae192677dd302d016aeed24f18e3aed88e8f5420e021861e774617622db53d1cf8b68c1b3a03

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRiWjzUNojlEy83:i5nkFGMOtEvwDpjNbwQEIikgNyER

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 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\2024-02-23_f7847db467d8368c71b595ef8b4c4202_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-23_f7847db467d8368c71b595ef8b4c4202_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    102KB

    MD5

    352c0140b6fafd93deb1aec33290d24e

    SHA1

    fd8f87c0657329e575efc2a3479f6e417fa4138a

    SHA256

    3bb4d0e5d57ff805e52fbd1dc3da74e51496cc9d55c69fffe022d79806f3a863

    SHA512

    24b3806ef55537e354519aab031968b3135a19d4abca47619727555ec03bec612b6dfdca8532d92b8c920f563e0085ee68581bbb31df624b285d6fd757ea789d

  • memory/2860-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2860-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2860-2-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB

  • memory/2860-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2860-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3024-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3024-19-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/3024-18-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/3024-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB