Overview

overview

10

Static

static

10

6d1e9bdbe3...eN.exe

windows7-x64

10

6d1e9bdbe3...eN.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2024 09:32

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General

  • Target

    6d1e9bdbe3b17d3f38b48f35501b26a9059159298c0196f0cb5a0a0de99fc8aeN.exe

  • Size

    90KB

  • MD5

    1be917436f2b88f6b47de91fc0d10920

  • SHA1

    9c986ab8a360357a9ef2ef787f9521e9d6f06a8d

  • SHA256

    6d1e9bdbe3b17d3f38b48f35501b26a9059159298c0196f0cb5a0a0de99fc8ae

  • SHA512

    fffd8437176354215b6642dbf21e8a32a816ab6bd312a96eeae1e1f91edf2b61904d7750a27c9df44b3d5289e63d613530eaaa1d04d16bc94eae28331c9f7fc1

  • SSDEEP

    1536:ebRiQMb57SK3bUzZdQ1iIMvnZlbLxjV3AGq5gWlocT1wzySsd9NJ33J:ebR057SKsstcnZTJQDgWPaySsdH5Z

Score
10/10
arrowratarrowratdiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

ArrowRAT

C2

hypersh.duckdns.org:5558

Mutex

DjTfbajvJ.exe

Signatures

  • ArrowRat

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

    ratarrowrat
  • Arrowrat family
    arrowrat
  • 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
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 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\6d1e9bdbe3b17d3f38b48f35501b26a9059159298c0196f0cb5a0a0de99fc8aeN.exe
    "C:\Users\Admin\AppData\Local\Temp\6d1e9bdbe3b17d3f38b48f35501b26a9059159298c0196f0cb5a0a0de99fc8aeN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4572
    • 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:1688
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ArrowRAT hypersh.duckdns.org 5558 DjTfbajvJ.exe
      2⤵
        PID:3724
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ArrowRAT hypersh.duckdns.org 5558 DjTfbajvJ.exe
        2⤵
        • System Location Discovery: System Language Discovery
        PID:4800
    • 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:1328
    • 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:2740

    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\AppCache133750999421261637.txt
      Filesize

      74KB

      MD5

      a218e4ac0af9a45f4f7c084ffea87b05

      SHA1

      8ef2fe15043f310c6328a1324db941a4740bf4e6

      SHA256

      7517f6f4f9bb1336d25ebb0ebdd79fbfa51a541e2083403b87bf0e4ff947103b

      SHA512

      6c2e55ff8eada7b24284b89e7215bf81a6dc970580275b1aca84e0b7e0cad8a2fc82e75e2f94ea1513f4e25f7563c0b5ea15893714bf301ca46699cb1665e665

      Download Submit

    • memory/1688-8-0x00000000034E0000-0x00000000034E1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2740-9-0x0000025E4B700000-0x0000025E4B800000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2740-14-0x000002664D2C0000-0x000002664D2E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2740-27-0x000002664D280000-0x000002664D2A0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2740-45-0x000002664DAE0000-0x000002664DB00000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4572-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4572-1-0x0000000000060000-0x000000000007C000-memory.dmp

      Filesize

      112KB

      Download

    • memory/4572-2-0x0000000004F90000-0x0000000005534000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/4572-3-0x0000000004B80000-0x0000000004C1C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/4800-4-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4800-6-0x0000000004E90000-0x0000000004F22000-memory.dmp

      Filesize

      584KB

      Download