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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14/02/2024, 03:41

General

  • Target

    2024-02-14_3af91551b31f03dad588530d74aa1c80_cryptolocker.exe

  • Size

    74KB

  • MD5

    3af91551b31f03dad588530d74aa1c80

  • SHA1

    d90741f25744e67653e7654d1d6b0bb402299a6c

  • SHA256

    9a01cb2803ea5af58271873a5f11c1a448cef980a44a311ad5bed6b889f85408

  • SHA512

    3ba6e974f8fbe7028f667f3c3891d73b7afde68eafd8e7b5cf967fafb6576a0a6680ed08755c2290216798c9706f0109f0b5b58a0672ff344d8481ff5456433b

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuY:ZVxkGOtEvwDpjcas

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-02-14_3af91551b31f03dad588530d74aa1c80_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-14_3af91551b31f03dad588530d74aa1c80_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    876f67c75629228cc61e4f3adef7f277

    SHA1

    84177a66275205cd02d5a2a8fadc783434df6a53

    SHA256

    433dc30c21e63586b3f53d6425511d90d57f70f60ca42cfed238bfbfea3e0683

    SHA512

    c7c5258c57f2230aff5740d7714226956348050b156377f063209e7cc987ccdbf6d12ab814678a2fd15c714e84833fae3a6377b88f9a1f44d40029d3817620a2

  • memory/2056-16-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2056-19-0x0000000000230000-0x00000000002B0000-memory.dmp

    Filesize

    512KB

  • memory/2056-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2056-25-0x0000000000230000-0x00000000002B0000-memory.dmp

    Filesize

    512KB

  • memory/2896-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2896-1-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2896-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2896-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB