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Analysis

  • max time kernel
    91s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 17:03

General

  • Target

    file.exe

  • Size

    4.5MB

  • MD5

    059660095ba38842e176cf29d8adc954

  • SHA1

    a330e477566fed2f46b19199853762fea089cec6

  • SHA256

    0e0e02546f73e4914cd735dea83a94435e567a26d64c11b8a7fc6f0ef6fc4103

  • SHA512

    26f21b1ebdb44e4b85a30a9b1ee86cf6b014563270f2a3b150aa997f27734835202fd1551c84683d3866e56dac81ccf9de189b96209cc7655320d0bea8a86684

  • SSDEEP

    49152:zolGmH4YG9aEZv9zPpYpuPKlMVNPi0jv0eST9r30lJLEJEO1Q35cL2HqCM+Bdzvj:zolfH4Y9EypdMVNa+u0AyO1Q3uYqjMz

Score
7/10

Malware Config

Signatures

  • .NET Reactor proctector 1 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3628
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
      2⤵
        PID:2280

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Protect544cd51a.dll

      Filesize

      453KB

      MD5

      eac3b0bdd54bc51e91f028637865bb43

      SHA1

      cc553d0795263753fb2503e2514a21447a10c9a4

      SHA256

      608ee5db2ed976f2427ffea641f32b0da50b12ff1c132c9e028d4248739d5a88

      SHA512

      02808a24a0c7a8cf4dab08ba1c4c456e65bdbde694c721a573fb6ab3d4a772f00f22d30fea3ea018dc4aa71230e36c404c56085e88c87189c5f48aef9f622d87

    • memory/2280-23-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2280-30-0x0000000002D20000-0x0000000002D52000-memory.dmp

      Filesize

      200KB

    • memory/2280-32-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2280-27-0x0000000002EA0000-0x0000000002EE0000-memory.dmp

      Filesize

      256KB

    • memory/2280-28-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/2280-31-0x0000000002D20000-0x0000000002D52000-memory.dmp

      Filesize

      200KB

    • memory/2280-29-0x0000000002D20000-0x0000000002D52000-memory.dmp

      Filesize

      200KB

    • memory/2280-20-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2280-25-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/3628-15-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-19-0x00000000063E0000-0x00000000064E0000-memory.dmp

      Filesize

      1024KB

    • memory/3628-16-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-2-0x0000000005A50000-0x0000000005AEC000-memory.dmp

      Filesize

      624KB

    • memory/3628-12-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-14-0x0000000005E60000-0x0000000005E70000-memory.dmp

      Filesize

      64KB

    • memory/3628-18-0x00000000063E0000-0x00000000064E0000-memory.dmp

      Filesize

      1024KB

    • memory/3628-17-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-0-0x0000000074910000-0x00000000750C0000-memory.dmp

      Filesize

      7.7MB

    • memory/3628-11-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-26-0x0000000074910000-0x00000000750C0000-memory.dmp

      Filesize

      7.7MB

    • memory/3628-13-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-1-0x0000000000C20000-0x00000000010A8000-memory.dmp

      Filesize

      4.5MB

    • memory/3628-21-0x00000000063E0000-0x00000000064E0000-memory.dmp

      Filesize

      1024KB

    • memory/3628-5-0x0000000005FA0000-0x0000000006132000-memory.dmp

      Filesize

      1.6MB

    • memory/3628-4-0x0000000005E90000-0x0000000005EA0000-memory.dmp

      Filesize

      64KB

    • memory/3628-3-0x0000000074910000-0x00000000750C0000-memory.dmp

      Filesize

      7.7MB