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 04:20

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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 3 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 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\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:528
    • 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:5092
    • 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⤵
        PID:1536
      • 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:5040
    • 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:3180
    • 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:4700

    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_Windows_Shell_RunDialog
      Filesize

      36KB

      MD5

      0ca04aee62bdd5f8941d065e72b4575b

      SHA1

      ace12ed4a8a453e42fdab7ffee2070445954b4b0

      SHA256

      b0721630850601fc849068539aa7d4984eb3a959f2d40acacec1ab0ffc9ceb3b

      SHA512

      a9b8498f2db9e9c880c346f557e6e6d75ad2866c9d42991d763e78b1bb4a7eeb1ed444a35051aaf5648f8416d7cbd569e07c24048d110c12882321ade493dbb5

      Download Submit

    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\{1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}_comexp_msc
      Filesize

      36KB

      MD5

      eab75a01498a0489b0c35e8b7d0036e5

      SHA1

      fd80fe2630e0443d1a1cef2bdb21257f3a162f86

      SHA256

      fdf01d2265452465fcbed01f1fdd994d8cbb41a40bbb1988166604c5450ead47

      SHA512

      2ec6c4f34dcf00b6588b536f15e3fe4d98a0b663c8d2a2df06aa7cface88e072e2c2b1b9aaf4dc5a17b29023a85297f1a007ff60b5d6d0c65d1546bf0e12dd45

      Download Submit

    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133748220354783217.txt
      Filesize

      75KB

      MD5

      c91d0affec041692f7a3b14468daefcb

      SHA1

      be47434a92c4a6f3f21c5a02b63df53cba2c3e52

      SHA256

      7d464afbbd2028086d1690ec3a145e297612a1b7c40df2774f5d3217270a7334

      SHA512

      0960289af4f207f09661d987c05cc99e39c5ffcb6d9ffd77c1585d87d9e584e074d8574e35609939d38b72196c79ce67e5f52bcf969dbf4810503a4dde10a8d5

      Download Submit

    • memory/528-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

      Filesize

      4KB

      Download

    • memory/528-1-0x0000000000DD0000-0x0000000000DEC000-memory.dmp

      Filesize

      112KB

      Download

    • memory/528-2-0x0000000005CB0000-0x0000000006254000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/528-3-0x00000000058E0000-0x000000000597C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/4700-28-0x000002B16D9C0000-0x000002B16D9E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4700-14-0x000002B16DF00000-0x000002B16DF20000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4700-9-0x000002B16CD00000-0x000002B16CE00000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4700-45-0x000002B16E310000-0x000002B16E330000-memory.dmp

      Filesize

      128KB

      Download

    • memory/5040-6-0x00000000051A0000-0x0000000005232000-memory.dmp

      Filesize

      584KB

      Download

    • memory/5040-4-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5092-8-0x0000000003590000-0x0000000003591000-memory.dmp

      Filesize

      4KB

      Download