Overview

overview

10

Static

static

10

x2xFapxhdTcU.exe

windows7-x64

10

x2xFapxhdTcU.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/03/2023, 23:29

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General

  • Target
    x2xFapxhdTcU.exe
  • Size 138KB
  • Sample230305-3gkzkshc8s
  • SHA256 e37964ebdb10d9e06d3aa47b5ca1500571e13f582d50add487110c7abb26a76c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
arrowratjb0qwlpersistencerat

Malware Config

Extracted

Family

  • arrowrat

Botnet

  • JB0QWL

C2

  • antgobec.duckdns.org:1338

Mutex

  • 3PDHTO

Signatures

  • ArrowRat

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

    ratarrowrat
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • 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 29 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\x2xFapxhdTcU.exe
    "C:\Users\Admin\AppData\Local\Temp\x2xFapxhdTcU.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4444
    • 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:716
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
      2⤵
        PID:1688
    • 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:2364
    • 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:4892

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          AppCache133225361569335305.txt
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133225361569335305.txt
          • Size 75KB
          • SHA256 3ae88b3a99e6b785bdb44760790bc03ac722ef5b673ad5b3ca49b5cc5eecf84f
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/716-148-0x0000000002D40000-0x0000000002D41000-memory.dmp
          Download

          memory/1688-134-0x0000000000400000-0x0000000000416000-memory.dmp
          Download

          memory/1688-138-0x0000000005900000-0x000000000599C000-memory.dmp
          Download

          memory/1688-139-0x0000000006120000-0x00000000066C4000-memory.dmp
          Download

          memory/1688-140-0x00000000060A0000-0x0000000006106000-memory.dmp
          Download

          memory/1688-143-0x00000000067D0000-0x0000000006820000-memory.dmp
          Download

          memory/1688-137-0x0000000005810000-0x00000000058A2000-memory.dmp
          Download

          memory/1688-302-0x0000000005A60000-0x0000000005A70000-memory.dmp
          Download

          memory/1688-146-0x0000000005A60000-0x0000000005A70000-memory.dmp
          Download

          memory/4444-133-0x000001E481260000-0x000001E481288000-memory.dmp
          Download

          memory/4892-154-0x00000140EF1B0000-0x00000140EF1D0000-memory.dmp
          Download

          memory/4892-157-0x00000140EF170000-0x00000140EF190000-memory.dmp
          Download

          memory/4892-159-0x00000140EF580000-0x00000140EF5A0000-memory.dmp
          Download

          memory/4892-313-0x00000138EC600000-0x00000138EDF2F000-memory.dmp
          Download

          memory/4892-326-0x00000138EC600000-0x00000138EDF2F000-memory.dmp
          Download