Overview

overview

10

Static

static

10

a73f67009d...1a.exe

windows7-x64

10

a73f67009d...1a.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
    02-11-2024 19:40

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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
arrowratclientdiscoverypersistencerat

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
  • 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 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 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 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:2004
    • 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:732
    • 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:3576
  • 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:4708
  • 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:1716

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\AppCache133750500456276962.txt
    Filesize

    75KB

    MD5

    a176992f6d731496eb1820061d141525

    SHA1

    cd5289cb688744d603ab8d8f93d2a34ab3911609

    SHA256

    c05a25bbd7b912365c92e1c9184060987b2b437207060c0194659f7bf6bfaf9d

    SHA512

    c53754374892a831e9e1533981e067fac31eb21ed44d4b7a98af4dd55bed36fadde92ac55efcf26ace5a288d0a485da7f2a22b154d5b2b65ea289a21777a9cdd

    Download Submit

  • memory/732-13-0x0000000003520000-0x0000000003521000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1716-20-0x0000018E32440000-0x0000018E32460000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1716-51-0x0000018E32810000-0x0000018E32830000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1716-41-0x0000018E32400000-0x0000018E32420000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2004-1-0x000001EB9D370000-0x000001EB9D39E000-memory.dmp

    Filesize

    184KB

    Download

  • memory/2004-183-0x00007FFF98FF0000-0x00007FFF99AB1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2004-3-0x00007FFF98FF0000-0x00007FFF99AB1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2004-0-0x00007FFF98FF3000-0x00007FFF98FF5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2004-182-0x00007FFF98FF3000-0x00007FFF98FF5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3576-4-0x0000000005230000-0x00000000052C2000-memory.dmp

    Filesize

    584KB

    Download

  • memory/3576-10-0x0000000006320000-0x0000000006370000-memory.dmp

    Filesize

    320KB

    Download

  • memory/3576-7-0x0000000005A60000-0x0000000005AC6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3576-6-0x0000000005AE0000-0x0000000006084000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/3576-5-0x00000000052D0000-0x000000000536C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3576-2-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

    Download