Analysis

  • max time kernel
    120s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-07-2024 13:12

General

  • Target

    9c3a18893011d2c2e93adafd939aee10N.exe

  • Size

    266KB

  • MD5

    9c3a18893011d2c2e93adafd939aee10

  • SHA1

    e7bf93ad09ce896198da7ab09cfe95ffcb9ab39b

  • SHA256

    9416e6132dd92b6959f70663005eef176bd91d6ece074459f76c14f8fe23fcbf

  • SHA512

    9e2cbc5a2467b8279eab6ed845b772ef4102d6cfcf03c9c99707b2a0db70f1d402ea4a6f9a4a402c50d23d8adc8b878ffa83ed10f547119f3ff8259b89d2d9af

  • SSDEEP

    3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8f:WFzDqa86hV6uRRqX1evPlwAE6

Malware Config

Signatures

  • AsyncRat

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

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c3a18893011d2c2e93adafd939aee10N.exe
    "C:\Users\Admin\AppData\Local\Temp\9c3a18893011d2c2e93adafd939aee10N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
      "C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4540
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:1172
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2464
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 180
        3⤵
        • Delays execution with timeout.exe
        PID:2320
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:4044

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat

      Filesize

      213B

      MD5

      0955cb4b691d44b37f8b6fad48a33b8e

      SHA1

      9dae759ae014cc124ab6eed7c8035788c124ae4a

      SHA256

      9092dbb1ca1767d1966b7f79349dd95a802a68248251bf070c0f1d74d5681d71

      SHA512

      08b868a028c1e8d29ed643416850df16f58d44668f9193b46bd3934965e5617a0a4015fc52815c5456023dbde01023450d295b76d936a936f26b602e764b0235

    • C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

      Filesize

      266KB

      MD5

      4232fd6918e447fce2b7f21a2922a072

      SHA1

      ca5c4b64248fb4cc62839a981e98c0c201283d12

      SHA256

      dd2c1c921c13dba6caad0f483d3e3da7a658ecba5bfaa4a291e3f71a43d39401

      SHA512

      5f78289ebc61f8793418474662b0db1dfd92b583cdca938c92fde8bfe1a88245991257b5ceb39ce8b6b9f822e1b0792b7f9d0470b63e67ef9c6779e5734503f9

    • memory/1172-28-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/4512-6-0x0000000005560000-0x000000000556A000-memory.dmp

      Filesize

      40KB

    • memory/4512-4-0x0000000005610000-0x000000000561A000-memory.dmp

      Filesize

      40KB

    • memory/4512-5-0x00000000744E0000-0x0000000074C90000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

      Filesize

      4KB

    • memory/4512-3-0x0000000005570000-0x0000000005602000-memory.dmp

      Filesize

      584KB

    • memory/4512-24-0x00000000744E0000-0x0000000074C90000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-2-0x0000000005C00000-0x00000000061A4000-memory.dmp

      Filesize

      5.6MB

    • memory/4512-1-0x0000000000B30000-0x0000000000B76000-memory.dmp

      Filesize

      280KB

    • memory/4540-25-0x00000000744E0000-0x0000000074C90000-memory.dmp

      Filesize

      7.7MB

    • memory/4540-26-0x00000000744E0000-0x0000000074C90000-memory.dmp

      Filesize

      7.7MB

    • memory/4540-30-0x00000000744E0000-0x0000000074C90000-memory.dmp

      Filesize

      7.7MB