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
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/02/2025, 03:21

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General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    7e139460393ef5092b11eff0adbd46f8

  • SHA1

    5ae92024865a0a52f76898327780e21304d3e35f

  • SHA256

    79ec7c271adcd148064e5324c66d8ea9c1eefd81c44bde7c9ca754f4fb9d80b3

  • SHA512

    a852f02e3528ec4bfa3de2aae232acf7a78474303b6221c64965a3eaec55a7e4636cb2fad2e936346dc5e374ec589406b99a68b390dd19a7d1f63b7821fe19ae

  • SSDEEP

    3072:MbztH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPWOO8Y:Mbzte0ODhTEPgnjuIJzo+PPcfPWB8

Score
10/10
arrowratclientdiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

192.168.1.222:1337

Mutex

gWyxhRMMH

Signatures

  • ArrowRat

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

    ratarrowrat
  • Arrowrat family
    arrowrat
  • 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
  • Downloads MZ/PE file 1 IoCs
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    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 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2380
    • 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:4772
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 192.168.1.222 1337 gWyxhRMMH
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3284
  • 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:4812
  • 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:5052
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1Mzg5NDIzMTk4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3992

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133835731335411450.txt
    Filesize

    75KB

    MD5

    e4ceeaea42102dda74844de312abe0a8

    SHA1

    461f8d523329848a5b63748672e32aaa7b23aeda

    SHA256

    f29a2fa9c259bd508b3607d670c8d9d2b925dbe1cc9115ab88177115f06a91a7

    SHA512

    0b7af654ae24f99e374298d8d41974946b1fffcfa535ebba724dcbdeecf34c3854fce6b4d665f2a29d2bd77b35b5c6ee141d0640b30f7b1207744b27258baac0

    Download Submit

  • memory/2380-0-0x00007FF94B883000-0x00007FF94B885000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2380-1-0x000002A5796D0000-0x000002A5796FE000-memory.dmp

    Filesize

    184KB

    Download

  • memory/3284-6-0x0000000005AE0000-0x0000000005B46000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3284-4-0x0000000005370000-0x000000000540C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3284-5-0x0000000005BE0000-0x0000000006184000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/3284-3-0x0000000005290000-0x0000000005322000-memory.dmp

    Filesize

    584KB

    Download

  • memory/3284-9-0x0000000006390000-0x00000000063E0000-memory.dmp

    Filesize

    320KB

    Download

  • memory/3284-2-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

    Download

  • memory/4772-12-0x0000000003840000-0x0000000003841000-memory.dmp

    Filesize

    4KB

    Download

  • memory/5052-16-0x0000022401500000-0x0000022401600000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/5052-19-0x00000224034D0000-0x00000224034F0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/5052-14-0x0000022401500000-0x0000022401600000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/5052-41-0x00000224038A0000-0x00000224038C0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/5052-27-0x0000022403490000-0x00000224034B0000-memory.dmp

    Filesize

    128KB

    Download