Overview

overview

10

Static

static

10

Client.exe

windows7-x64

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    29s
  • max time network
    31s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 11:45

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General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    3c4f1cd073b3e89ecb68d543bf5993c0

  • SHA1

    61e177312b22fbc4e2688d3e89fa9b109730d559

  • SHA256

    d14ea2e8707de582868781011b9a07cdbe1c855b5beab114e5ffcc0689bd0550

  • SHA512

    f9b39743df2e2e34fa1bfc72783e9e2a2f893227b27624d1016e915f46a32e9d21cf443d3a8c6a077d9ddd767df82c5eca0f08e633fbf3b02cfb9bcbe694562e

  • SSDEEP

    3072:KbzkH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPtxO8Y:Kbzke0ODhTEPgnjuIJzo+PPcfPt88

Score
10/10
arrowratclientdiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

given-aim.gl.at.ply.gg:20904

Mutex

akFknoCvQ

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 21 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4832
    • 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:100
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1352
  • 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:2436
  • 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:1784

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\AppCache133780455362172004.txt
    Filesize

    75KB

    MD5

    310d178e88314bd8c3ffaf1e0f54babe

    SHA1

    e526f7494930214e8bbcce012a71f71859a0a2b1

    SHA256

    b341ad61ab5248be28ac4ef98249e8153fa5920b934681cf109c5784e95d16ee

    SHA512

    0f772dea12a0595f4bd8cb027ea92c3507775aad1990215aecec3a4ab64e562324ba8952681c29e4321e2a4cb2471262101e70445a0e95d428e1541d3d709fdd

    Download Submit

  • memory/100-16-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/100-160-0x0000000009400000-0x00000000095A9000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/1352-10-0x00000000060C0000-0x0000000006110000-memory.dmp

    Filesize

    320KB

    Download

  • memory/1352-4-0x0000000004FB0000-0x0000000005042000-memory.dmp

    Filesize

    584KB

    Download

  • memory/1352-5-0x0000000005060000-0x00000000050FC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/1352-6-0x0000000005980000-0x0000000005F24000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/1352-7-0x0000000005800000-0x0000000005866000-memory.dmp

    Filesize

    408KB

    Download

  • memory/1352-2-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

    Download

  • memory/1784-17-0x000002C165A00000-0x000002C165B00000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/1784-22-0x000002C967A20000-0x000002C967A40000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1784-26-0x000002C9675E0000-0x000002C967600000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1784-52-0x000002C967DF0000-0x000002C967E10000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4832-3-0x00007FF976220000-0x00007FF976CE1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4832-159-0x00007FF976223000-0x00007FF976225000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4832-0-0x00007FF976223000-0x00007FF976225000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4832-161-0x00007FF976220000-0x00007FF976CE1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4832-1-0x0000022DCB3D0000-0x0000022DCB3FE000-memory.dmp

    Filesize

    184KB

    Download