Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2024 09:49

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General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    5e59614770589b6f9ccd26931cedbf45

  • SHA1

    dc5ee9bcda9d90c24574b9e420842c9a8789f1a3

  • SHA256

    66475b24c13dab1ac718c17eb8a36a19c965144026c87ab504a73ced3896e43c

  • SHA512

    2a8eaf627a11962ae5de96c6d2147c45094ecac1a547560aed8d451341998b1b0a7dbcdc957bee98b3bb270d5538129d12e53c6758129fc28cca250b064e2d34

  • SSDEEP

    3072:HbzFH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfP6ZO8Y:HbzFe0ODhTEPgnjuIJzo+PPcfP608

Score
10/10
arrowratwindows anti virus detectionsdiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Windows Anti Virus Detections

C2

and-statements.gl.at.ply.gg2a04:4a43:976f:fbc4:a03b:6599:d257:fc04:43442

Mutex

xNageaqsy

Signatures

  • ArrowRat

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

    ratarrowrat
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2192
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Windows Anti Virus Detections and-statements.gl.at.ply.gg2a04:4a43:976f:fbc4:a03b:6599:d257:fc04 43442 xNageaqsy
      2⤵
        PID:1220
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Windows Anti Virus Detections and-statements.gl.at.ply.gg2a04:4a43:976f:fbc4:a03b:6599:d257:fc04 43442 xNageaqsy
        2⤵
          PID:4448
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Windows Anti Virus Detections and-statements.gl.at.ply.gg2a04:4a43:976f:fbc4:a03b:6599:d257:fc04 43442 xNageaqsy
          2⤵
          • System Location Discovery: System Language Discovery
          PID:1384
        • C:\Windows\System32\ComputerDefaults.exe
          "C:\Windows\System32\ComputerDefaults.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3516
          • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
            "PowerShell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\OUwHtoOEA\upkqfAxRD.exe'
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4560
      • 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:3080
      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
        1⤵
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:3664

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133669793840171408.txt
        Filesize

        75KB

        MD5

        282245bf0fbce4004c090213245f04fd

        SHA1

        979b839e16fdf44cb4da214c2ea3b7eb3498c133

        SHA256

        3a111d6782fe5db5240e6de3ccbe57ae27042293b0528eb0534302c8233aaa53

        SHA512

        70b7f4a70b2080335bdc4653e5efd43648aee3436cad159eaa10bb507348d95d05a50f7f2cbb10b5987feb9a61288d7516473b82a7de4613ef63797249b96db4

        Download Submit

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mddffbx1.dga.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        Download Submit

      • memory/1228-1-0x00007FF9611C3000-0x00007FF9611C5000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1228-0-0x000002474E540000-0x000002474E56E000-memory.dmp

        Filesize

        184KB

        Download

      • memory/1228-10-0x00007FF9611C0000-0x00007FF961C81000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/1228-217-0x00007FF9611C0000-0x00007FF961C81000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/1384-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

        Download

      • memory/1384-4-0x00000000051F0000-0x0000000005282000-memory.dmp

        Filesize

        584KB

        Download

      • memory/1384-5-0x0000000005320000-0x00000000053BC000-memory.dmp

        Filesize

        624KB

        Download

      • memory/1384-6-0x0000000005AA0000-0x0000000006044000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/2192-23-0x0000000003550000-0x0000000003551000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3664-47-0x000001F9F0510000-0x000001F9F0530000-memory.dmp

        Filesize

        128KB

        Download

      • memory/3664-30-0x000001F9F0140000-0x000001F9F0160000-memory.dmp

        Filesize

        128KB

        Download

      • memory/3664-34-0x000001F9F0100000-0x000001F9F0120000-memory.dmp

        Filesize

        128KB

        Download

      • memory/3664-25-0x000001F1EDDA0000-0x000001F1EDEA0000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/4560-20-0x00000113EB470000-0x00000113EB492000-memory.dmp

        Filesize

        136KB

        Download