Overview

overview

10

Static

static

10

79ec7c271a...b3.exe

windows7-x64

10

79ec7c271a...b3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2025 15:11

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General

  • Target

    79ec7c271adcd148064e5324c66d8ea9c1eefd81c44bde7c9ca754f4fb9d80b3.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
  • 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 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 33 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 13 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\79ec7c271adcd148064e5324c66d8ea9c1eefd81c44bde7c9ca754f4fb9d80b3.exe
    "C:\Users\Admin\AppData\Local\Temp\79ec7c271adcd148064e5324c66d8ea9c1eefd81c44bde7c9ca754f4fb9d80b3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:896
    • 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:4124
    • 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⤵
        PID:3524
      • 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:1384
    • 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:760
    • 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:1628

    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\AppCache133835945910603972.txt
      Filesize

      75KB

      MD5

      eb30fcc3abb721725217971dbb9c7c2d

      SHA1

      8fcda3a45501018de855e0e5a11fd78104eb2a4d

      SHA256

      324741f5b9fc51412c0555917b460e3000b837ef6cecb6fae88f67a9fcf66a32

      SHA512

      0c4a5b83bc677bb81540a8f5c8bf7e5ff8c81b3cf574355799557209891a175ca1913b370b90832931798cf7bd5e8617ef6872f2676ce7f48289220e2bc0d887

      Download Submit

    • memory/896-1-0x00000222CB050000-0x00000222CB07E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/896-0-0x00007FFED8213000-0x00007FFED8215000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1384-6-0x0000000005850000-0x00000000058B6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/1384-3-0x0000000005000000-0x0000000005092000-memory.dmp

      Filesize

      584KB

      Download

    • memory/1384-5-0x0000000005950000-0x0000000005EF4000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/1384-4-0x0000000005140000-0x00000000051DC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/1384-9-0x0000000006100000-0x0000000006150000-memory.dmp

      Filesize

      320KB

      Download

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

      Filesize

      96KB

      Download

    • memory/1628-15-0x0000026377C20000-0x0000026377D20000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/1628-16-0x0000026377C20000-0x0000026377D20000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/1628-19-0x0000026B7A2D0000-0x0000026B7A2F0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1628-20-0x0000026B7A290000-0x0000026B7A2B0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1628-34-0x0000026B7A6A0000-0x0000026B7A6C0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4124-13-0x0000000003820000-0x0000000003821000-memory.dmp

      Filesize

      4KB

      Download