Overview

overview

10

Static

static

10

a73f67009d...1a.exe

windows7-x64

10

a73f67009d...1a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-08-2024 01:17

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General

  • Target

    a73f67009d77906b2dfee216b4e7cb940eef13304c22e909b65cd2834e291b1a.exe

  • Size

    158KB

  • MD5

    b41b657eb9883b9d2de872e7200d4fd2

  • SHA1

    a9b102d7b76416bc4beaa2702e3b90206c323b66

  • SHA256

    a73f67009d77906b2dfee216b4e7cb940eef13304c22e909b65cd2834e291b1a

  • SHA512

    eb290a85597c934485887d7ccf21642042ceff82b052784543a55569af404b60fc9d42dcd42da027750d439a55a928705d4f9c1e40824e8f0b91d2e92110d73f

  • SSDEEP

    3072:5bzwH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfP6OO8Y:5bzwe0ODhTEPgnjuIJzo+PPcfP6B8

Score
10/10
arrowratclientcredential_accessdiscoverypersistenceratstealer

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

and-statements.gl.at.ply.gg:43442

Mutex

KRSSneMpK

Signatures

  • ArrowRat

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

    ratarrowrat
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer
  • 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 1 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 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\a73f67009d77906b2dfee216b4e7cb940eef13304c22e909b65cd2834e291b1a.exe
    "C:\Users\Admin\AppData\Local\Temp\a73f67009d77906b2dfee216b4e7cb940eef13304c22e909b65cd2834e291b1a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2588
    • 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:1752
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client and-statements.gl.at.ply.gg 43442 KRSSneMpK
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3008
  • 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:3588
  • 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:1728
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4056,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4116 /prefetch:8
    1⤵
      PID:1652

    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\AppCache133678990771132471.txt
      Filesize

      76KB

      MD5

      9246629bf07770f64d11554ff28cf5f6

      SHA1

      5b1b0834ba7f33ca30d5e34f6e94dac2100dbca8

      SHA256

      e213c73555d2cdea481a81a4c6cef685cc8df480ab7d0a3509b6c7867974a1a2

      SHA512

      2b50c90b393058d1f66fcb2c9be7dcc4e63f7c032a1e47ba3de1ba7ef6e3306ebb59e4f7b5c4d05ca8f1f936becc7e16ca22087ba68dcf49e389818624f39db2

      Download Submit

    • memory/1728-37-0x000001B98F5C0000-0x000001B98F5E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1728-51-0x000001B98F9D0000-0x000001B98F9F0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1728-20-0x000001B98F600000-0x000001B98F620000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1752-14-0x0000000002A50000-0x0000000002A51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2588-1-0x00007FFEA0393000-0x00007FFEA0395000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2588-3-0x00007FFEA0390000-0x00007FFEA0E51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2588-0-0x0000025B14F00000-0x0000025B14F2E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2588-209-0x00007FFEA0390000-0x00007FFEA0E51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3008-4-0x0000000005590000-0x0000000005622000-memory.dmp

      Filesize

      584KB

      Download

    • memory/3008-10-0x00000000066A0000-0x00000000066F0000-memory.dmp

      Filesize

      320KB

      Download

    • memory/3008-7-0x00000000063A0000-0x0000000006406000-memory.dmp

      Filesize

      408KB

      Download

    • memory/3008-6-0x0000000005DF0000-0x0000000006394000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/3008-5-0x0000000005630000-0x00000000056CC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/3008-2-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download