Overview

overview

10

Static

static

10

bb3cfbb292...5a.exe

windows7-x64

10

bb3cfbb292...5a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2024 04:27

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General

  • Target

    bb3cfbb29265e73f8ed5a345274347f7e349435dfd7e2806f05fa90cecc20b5a.exe

  • Size

    90KB

  • MD5

    ffcc9b9d4ef1f533d2de35bc1e783e7f

  • SHA1

    e102a7c7586f16f93caeac089f3be247a95ff7a1

  • SHA256

    bb3cfbb29265e73f8ed5a345274347f7e349435dfd7e2806f05fa90cecc20b5a

  • SHA512

    0fa343e6fffda0789e8ce6bdaf5dd2cb84d0cdeee190546d0b51aa09a20d3f8aa50be049efec4d9269bdf6ee5af863ace66850a8844d03d1a6e9ac89971c2159

  • SSDEEP

    1536:ebRiQMT57SK3bUzZdQ1iIMvnZlbLxjV3AGq5gWlocT1wzySsd9NJ33c:ebRU57SKsstcnZTJQDgWPaySsdH5s

Score
10/10
arrowratarrowratdiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

ArrowRAT

C2

arwr.duckdns.org:5558

Mutex

wSUudxZaw.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 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
  • 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\bb3cfbb29265e73f8ed5a345274347f7e349435dfd7e2806f05fa90cecc20b5a.exe
    "C:\Users\Admin\AppData\Local\Temp\bb3cfbb29265e73f8ed5a345274347f7e349435dfd7e2806f05fa90cecc20b5a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3500
    • 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:3668
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ArrowRAT arwr.duckdns.org 5558 wSUudxZaw.exe
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2940
  • 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:3208
  • 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:3108

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\AppCache133748224715637697.txt
    Filesize

    74KB

    MD5

    6a3fcb9e01c66fd69af8533279dd75e7

    SHA1

    0718fd1b10b0849d978c0f7960c7428c30d49000

    SHA256

    600a3400982a18810389199a46253195333e327042f029a2f8859c53c4274930

    SHA512

    7e22abafd787c8f5ad94271bd08b793cf1a660e4711195fc76083a06bf2627ff9a7ff7b6ab0f8592702af2a0cb20f95f2ecb4be911edaf394aa55d86cd080353

    Download Submit

  • memory/2940-4-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2940-6-0x0000000005190000-0x0000000005222000-memory.dmp

    Filesize

    584KB

    Download

  • memory/3108-26-0x000001A630630000-0x000001A630650000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3108-14-0x000001A630670000-0x000001A630690000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3108-45-0x000001A630A40000-0x000001A630A60000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3500-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3500-1-0x0000000000D70000-0x0000000000D8C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/3500-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/3500-3-0x0000000005870000-0x000000000590C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3668-8-0x0000000002800000-0x0000000002801000-memory.dmp

    Filesize

    4KB

    Download