Overview

overview

10

Static

static

10

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2023, 00:59

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General

  • Target
    file.exe
  • Size 158KB
  • Sample230620-bb3hwshb76
  • SHA256 90093c647c4ef8f612e3e470c93debfb667aaf39073cd503cd670c6355dc474a
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
arrowratclientpersistencerat

Malware Config

Extracted

Family

  • arrowrat

Botnet

  • Client

C2

  • 3.142.167.4:14894

Mutex

  • LFqZKjDAo

Signatures

  • ArrowRat

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

    ratarrowrat
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2904
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 3.142.167.4 14894 LFqZKjDAo
      2⤵
        PID:1416
    • 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:1396
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4360

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          AppCache133316963518117981.txt
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133316963518117981.txt
          • Size 75KB
          • SHA256 3ae88b3a99e6b785bdb44760790bc03ac722ef5b673ad5b3ca49b5cc5eecf84f
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          temp0923
          • Path C:\Users\Admin\AppData\Roaming\temp0923
          • Size 10B
          • SHA256 54cc528f19a17c7ce64f4e3c3bb925debef4f092046cdb7834572854f8804735
          • MD5 SHA1 SHA512
          Submit Download

          memory/1416-140-0x00000000056D0000-0x0000000005736000-memory.dmp
          Download

          memory/1416-137-0x0000000004F50000-0x0000000004FEC000-memory.dmp
          Download

          memory/1416-138-0x0000000005790000-0x0000000005D34000-memory.dmp
          Download

          memory/1416-139-0x0000000004F40000-0x0000000004F50000-memory.dmp
          Download

          memory/1416-143-0x0000000005F40000-0x0000000005F90000-memory.dmp
          Download

          memory/1416-136-0x0000000004E10000-0x0000000004EA2000-memory.dmp
          Download

          memory/1416-134-0x0000000000400000-0x0000000000418000-memory.dmp
          Download

          memory/1416-310-0x0000000004F40000-0x0000000004F50000-memory.dmp
          Download

          memory/2904-148-0x0000000002D90000-0x0000000002D91000-memory.dmp
          Download

          memory/4320-133-0x0000017D8EB90000-0x0000017D8EBBE000-memory.dmp
          Download

          memory/4360-155-0x000001FF702A0000-0x000001FF702C0000-memory.dmp
          Download

          memory/4360-157-0x000001FF70260000-0x000001FF70280000-memory.dmp
          Download

          memory/4360-159-0x000001FF70670000-0x000001FF70690000-memory.dmp
          Download