Overview

overview

10

Static

static

10

VenomRAT/P...er.exe

windows10-2004-x64

1

VenomRAT/S...nt.exe

windows10-2004-x64

10

VenomRAT/S...nt.exe

windows10-2004-x64

10

VenomRAT/V...NC.exe

windows10-2004-x64

10

VenomRAT/client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    30s
  • max time network
    34s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2023 21:42

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General

  • Target

    VenomRAT/Stub/client.exe

  • Size

    144KB

  • MD5

    f4fdcb900e7af47100ac9e46945fbd55

  • SHA1

    c1d235a9a2cae8d5a8d4f6ceb4eab9417e1b1fb2

  • SHA256

    9160b90fa4a6a9cf22f943dba92cec64e2dc03c2317b5d9ab50a753fc410ce43

  • SHA512

    236eef98d4695a5e1224a87a1dc598639e5c49f6dd192a96cc1b9f8305faa57078deb62d73906a33ba1c1fac4fa5ccc5f344a0f196dbba718b76a36667984ac2

  • SSDEEP

    3072:Bsp9iv+DYM5ob0HGNSKsstcnZTJQDgWPaySsdH5boWz:Op9iTMSb0mgKFcQjhdH

Score
10/10
arrowratasyncrat%group%persistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

%Group%

C2

%Hosts%:%Ports%

Mutex

%MTX%

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

    ratarrowrat
  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

    ratasyncrat
  • Async RAT payload 2 IoCs
    rat
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 59 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VenomRAT\Stub\client.exe
    "C:\Users\Admin\AppData\Local\Temp\VenomRAT\Stub\client.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:540
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%
      2⤵
        PID:2220
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4392
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:624

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/624-255-0x0000014E28180000-0x0000014E281A0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/624-160-0x0000014E282A0000-0x0000014E282C0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/624-169-0x0000014E38820000-0x0000014E38840000-memory.dmp

      Filesize

      128KB

      Download

    • memory/624-257-0x0000014E282E0000-0x0000014E28300000-memory.dmp

      Filesize

      128KB

      Download

    • memory/624-156-0x0000014E383A0000-0x0000014E384A0000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/624-153-0x0000014E254F0000-0x0000014E25510000-memory.dmp

      Filesize

      128KB

      Download

    • memory/624-150-0x0000014E25398000-0x0000014E253A0000-memory.dmp

      Filesize

      32KB

      Download

    • memory/2220-139-0x00000000056B0000-0x0000000005C54000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/2220-138-0x0000000004E90000-0x0000000004F2C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/2220-137-0x0000000004DF0000-0x0000000004E82000-memory.dmp

      Filesize

      584KB

      Download

    • memory/2220-134-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4308-136-0x00007FFAD9D50000-0x00007FFADA811000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4308-149-0x00007FFAD9D50000-0x00007FFADA811000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4308-132-0x000001F2C0660000-0x000001F2C068A000-memory.dmp

      Filesize

      168KB

      Download