Analysis

  • max time kernel
    137s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/11/2023, 19:49

General

  • Target

    LITIGALCAL20231108.exe

  • Size

    494KB

  • MD5

    05a7b9be87ca76ee20fa34231f9b4828

  • SHA1

    873ada526feb53b73aad3a4ec38f08c3c9dc1e67

  • SHA256

    318799146f72f9938bf3873f06072fd923f980e05e12264d3392719ad9c37ae2

  • SHA512

    fab95e430236335b0951f923ca3955d8b0ed1110c33de46a51d5e24c1902e93f5674b4cb4df0fbc6936794e6d780c66084d5d1057c05e0dd3b45a1eaabf66eca

  • SSDEEP

    6144:L/4IWmME4Aqv+5XFjL5X647jhnJirP7jwThzbRso3U:L/4XmME4AY8XhN/FkrDjwlzCok

Malware Config

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LITIGALCAL20231108.exe
    "C:\Users\Admin\AppData\Local\Temp\LITIGALCAL20231108.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3772

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2760-8-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

          Filesize

          64KB

        • memory/2760-14-0x0000000074F00000-0x00000000756B0000-memory.dmp

          Filesize

          7.7MB

        • memory/2760-2-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

          Filesize

          64KB

        • memory/2760-3-0x00000000053E0000-0x000000000542A000-memory.dmp

          Filesize

          296KB

        • memory/2760-4-0x0000000002810000-0x0000000002842000-memory.dmp

          Filesize

          200KB

        • memory/2760-5-0x0000000005530000-0x0000000005560000-memory.dmp

          Filesize

          192KB

        • memory/2760-6-0x0000000005560000-0x00000000055AC000-memory.dmp

          Filesize

          304KB

        • memory/2760-7-0x0000000074F00000-0x00000000756B0000-memory.dmp

          Filesize

          7.7MB

        • memory/2760-1-0x00000000002A0000-0x000000000031C000-memory.dmp

          Filesize

          496KB

        • memory/2760-0-0x0000000074F00000-0x00000000756B0000-memory.dmp

          Filesize

          7.7MB

        • memory/2760-9-0x0000000005B60000-0x0000000006104000-memory.dmp

          Filesize

          5.6MB

        • memory/3772-11-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3772-13-0x0000000074F00000-0x00000000756B0000-memory.dmp

          Filesize

          7.7MB

        • memory/3772-15-0x0000000005170000-0x0000000005180000-memory.dmp

          Filesize

          64KB

        • memory/3772-18-0x00000000059E0000-0x0000000005A7C000-memory.dmp

          Filesize

          624KB

        • memory/3772-19-0x0000000005AF0000-0x0000000005B56000-memory.dmp

          Filesize

          408KB

        • memory/3772-20-0x0000000074F00000-0x00000000756B0000-memory.dmp

          Filesize

          7.7MB

        • memory/3772-21-0x0000000005170000-0x0000000005180000-memory.dmp

          Filesize

          64KB