Analysis

  • max time kernel
    122s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-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 7 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 9 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:2136
    • 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:3068

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\CabDB73.tmp

          Filesize

          61KB

          MD5

          f3441b8572aae8801c04f3060b550443

          SHA1

          4ef0a35436125d6821831ef36c28ffaf196cda15

          SHA256

          6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

          SHA512

          5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

        • memory/2136-18-0x0000000074640000-0x0000000074D2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2136-2-0x0000000000270000-0x00000000002BA000-memory.dmp

          Filesize

          296KB

        • memory/2136-3-0x0000000004940000-0x0000000004980000-memory.dmp

          Filesize

          256KB

        • memory/2136-4-0x0000000000670000-0x00000000006A2000-memory.dmp

          Filesize

          200KB

        • memory/2136-5-0x0000000001EF0000-0x0000000001F20000-memory.dmp

          Filesize

          192KB

        • memory/2136-6-0x0000000004880000-0x00000000048CC000-memory.dmp

          Filesize

          304KB

        • memory/2136-7-0x0000000074640000-0x0000000074D2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2136-8-0x0000000004940000-0x0000000004980000-memory.dmp

          Filesize

          256KB

        • memory/2136-1-0x0000000074640000-0x0000000074D2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2136-0-0x0000000000130000-0x00000000001AC000-memory.dmp

          Filesize

          496KB

        • memory/3068-13-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-12-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-11-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-16-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/3068-19-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-21-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-22-0x00000000745C0000-0x0000000074CAE000-memory.dmp

          Filesize

          6.9MB

        • memory/3068-23-0x00000000006B0000-0x00000000006F0000-memory.dmp

          Filesize

          256KB

        • memory/3068-10-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3068-40-0x00000000745C0000-0x0000000074CAE000-memory.dmp

          Filesize

          6.9MB

        • memory/3068-41-0x00000000006B0000-0x00000000006F0000-memory.dmp

          Filesize

          256KB