Overview

overview

10

Static

static

10

6d1e9bdbe3...eN.exe

windows7-x64

10

6d1e9bdbe3...eN.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    136s
  • max time network
    146s
  • 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 09:39

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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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 50 IoCs
  • Suspicious use of SendNotifyMessage 22 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 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:1892
    • 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:4928
    • 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:4892
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1920
  • 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:2892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_Office_SPREADSHEETCOMPARE_EXE_15
    Filesize

    36KB

    MD5

    d73810507446e10f35cef691a91cc5f3

    SHA1

    f871fc76285b469eaf3f77697acb489438671a31

    SHA256

    bb2ac675156df74f88f154e0b586c759ad50b5c57dcd8a98005d5597ed7ad1a3

    SHA512

    c9d458e899fcec6eb5ce5eae2371ab7f20e741b6cd3e82b052041e33fd8bc5c77fdcb4ee239bfd07913074eb810082a0c9753c25571aeb8aa6cf04f072e1f764

    Download Submit

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_Windows_Explorer
    Filesize

    36KB

    MD5

    ab0262f72142aab53d5402e6d0cb5d24

    SHA1

    eaf95bb31ae1d4c0010f50e789bdc8b8e3116116

    SHA256

    20a108577209b2499cfdba77645477dd0d9771a77d42a53c6315156761efcfbb

    SHA512

    bf9580f3e5d1102cf758503e18a2cf98c799c4a252eedf9344f7c5626da3a1cf141353f01601a3b549234cc3f2978ad31f928068395b56f9f0885c07dbe81da1

    Download Submit

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133751003713607682.txt
    Filesize

    75KB

    MD5

    f02018b040330443db10b41ff1bbe483

    SHA1

    a74e9b446e29a5593992be07ce83ea7ddc4f540e

    SHA256

    674317764d7cc54f24fde5aeebfee69d605051e9858b8acd6dcdf0d96047a410

    SHA512

    6b44af367651de68386efb5deed93b692a21ed35e9d5c668144caeae89b8d13b0b06a31ecfd5797d69668eea296f9281cd5e3ed871584879cd07bc234cefe82d

    Download Submit

  • memory/1892-0-0x00000000751DE000-0x00000000751DF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1892-1-0x00000000009C0000-0x00000000009DC000-memory.dmp

    Filesize

    112KB

    Download

  • memory/1892-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/1892-3-0x0000000005380000-0x000000000541C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/2892-34-0x000001F9A7FB0000-0x000001F9A7FD0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2892-33-0x000001F9A7BA0000-0x000001F9A7BC0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2892-14-0x000001F9A7BE0000-0x000001F9A7C00000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4892-6-0x00000000057B0000-0x0000000005842000-memory.dmp

    Filesize

    584KB

    Download

  • memory/4892-4-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

    Download

  • memory/4928-8-0x0000000003520000-0x0000000003521000-memory.dmp

    Filesize

    4KB

    Download