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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/02/2024, 17:24

General

  • Target

    2024-02-04_39e47d29beac650071b566bb06491db1_cryptolocker.exe

  • Size

    46KB

  • MD5

    39e47d29beac650071b566bb06491db1

  • SHA1

    ca75435b28b0bdd7b7738e3ec1e88e96f14c2c4c

  • SHA256

    838cbcc58fdb74beff2b2d0869c1939713ca6a8f99f29941630a515f7b59e0a4

  • SHA512

    4a75725584b589fcd6fde8ea19976905b3d4598062022317586dca0f4048fa3deafc91a25e625d215deab33760eb110f7c2a10f9d41dc71905570041db66de44

  • SSDEEP

    768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhXSJJG:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+M

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-02-04_39e47d29beac650071b566bb06491db1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-04_39e47d29beac650071b566bb06491db1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    79e084c9992f8b666191fd16324d87ef

    SHA1

    8976c4d106b17e54fc0d9890fd73e558126ec17f

    SHA256

    d62423ee8982470d58694b39967cdc4be8f13526f1bca2f14f981b2289913566

    SHA512

    62c917b6417c9c634fde7db183d2f9c51e44fe81e80ba20b160cbf4266b42ccc3cbdae411c6c4447568c2a71947b74075f0ce4cdcc6dedd9e100fb496baa2854

  • memory/1904-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/1904-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1904-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1904-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1904-15-0x00000000022E0000-0x00000000022EB000-memory.dmp

    Filesize

    44KB

  • memory/1904-16-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2172-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2172-19-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2172-22-0x0000000000440000-0x0000000000446000-memory.dmp

    Filesize

    24KB