Overview

overview

10

Static

static

5

qrsnutg3m2a7vzc0.exe

windows10-2004-x64

10

qrsnutg3m2a7vzc0.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/07/2026, 18:24

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General

  • Target
    qrsnutg3m2a7vzc0.exe
  • Size 549KB
  • Sample260717-w15prsat2q
  • SHA256 329eb190ef905eea7bcabf7ed8938b79edf23836bcda41cc30c6ba6872e52038
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
costuradefense_evasionexecutionpackerpersistenceprivilege_escalation

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • 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
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 12 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 9 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

    costurapacker
  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 6 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
    defense_evasion
  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies registry class 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 44 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 16 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\qrsnutg3m2a7vzc0.exe
    "C:\Users\Admin\AppData\Local\Temp\qrsnutg3m2a7vzc0.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5008
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" netsh advfirewall firewall add rule name="%}gR./N(.g<].G" dir=in action=allow program="C:\Program Files\xdwdSearch.exe" enable=yes & exit
      2⤵
        PID:3960
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\xdwdSearch.exe" /RL HIGHEST & exit
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2248
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\xdwdSearch.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2668
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\xdwdSearcher.exe" /RL HIGHEST & exit
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2236
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\xdwdSearcher.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1812
      • C:\Program Files\xdwdSearch.exe
        "C:\Program Files\xdwdSearch.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4948
        • C:\Windows\SYSTEM32\CMD.exe
          "CMD" /c schtasks /deleTe /F /Tn "ShellHost" & exit& exit
          3⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:2384
          • C:\Windows\system32\schtasks.exe
            schtasks /deleTe /F /Tn "ShellHost"
            4⤵
              PID:3004
          • C:\Windows\SYSTEM32\CMD.exe
            "CMD" /c schtasks /deleTe /F /Tn "CookieManager" & exit& exit
            3⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:4556
            • C:\Windows\system32\schtasks.exe
              schtasks /deleTe /F /Tn "CookieManager"
              4⤵
                PID:2668
            • C:\Windows\SYSTEM32\cmd.exe
              "cmd" /C taskkill /im explorer.exe /f && TimeOut 2 && start explorer.exe
              3⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:3088
              • C:\Windows\system32\taskkill.exe
                taskkill /im explorer.exe /f
                4⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:464
              • C:\Windows\system32\timeout.exe
                TimeOut 2
                4⤵
                • Delays execution with timeout.exe
                PID:4512
              • C:\Windows\explorer.exe
                explorer.exe
                4⤵
                • 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
                • Suspicious use of SetWindowsHookEx
                PID:1928
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp718C.tmp.bat""
              3⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:2484
              • C:\Windows\system32\timeout.exe
                timeout 10 "C:\Program Files"DEL "xdwdSearch.exe" /f /qCD "C:\Windows"DEL "xdwdSearcher.exe" /f /qCD "C:\Windows"DEL "xdwd.dll" /f /qCD "C:\Users\Admin\AppData\Local\Temp"DEL "tmp718C.tmp.bat" /f /q
                4⤵
                • Delays execution with timeout.exe
                PID:4044
        • C:\Windows\xdwdSearcher.exe
          C:\Windows\xdwdSearcher.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:2664
        • C:\Program Files\xdwdSearch.exe
          "C:\Program Files\xdwdSearch.exe"
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:3664
        • C:\Program Files\xdwdSearch.exe
          "C:\Program Files\xdwdSearch.exe"
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:3100
        • 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:864
        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:1628

        Network

              MITRE ATT&CK Enterprise v16

              Reconnaissance

              Resource Development

              Initial Access

              Execution

              Command and Scripting Interpreter

              1
              T1059

              Windows Command Shell

              1
              T1059.003

              Scheduled Task/Job

              1
              T1053

              Scheduled Task

              1
              T1053.005

              Persistence

              Boot or Logon Autostart Execution

              2
              T1547

              Active Setup

              1
              T1547.014

              Winlogon Helper DLL

              1
              T1547.004

              Event Triggered Execution

              1
              T1546

              AppInit DLLs

              1
              T1546.010

              Scheduled Task/Job

              1
              T1053

              Scheduled Task

              1
              T1053.005

              Privilege Escalation

              Boot or Logon Autostart Execution

              2
              T1547

              Active Setup

              1
              T1547.014

              Winlogon Helper DLL

              1
              T1547.004

              Event Triggered Execution

              1
              T1546

              AppInit DLLs

              1
              T1546.010

              Scheduled Task/Job

              1
              T1053

              Scheduled Task

              1
              T1053.005

              Defense Evasion

              Modify Registry

              2
              T1112

              Credential Access

              Discovery

              Peripheral Device Discovery

              2
              T1120

              Query Registry

              4
              T1012

              System Information Discovery

              4
              T1082

              Lateral Movement

              Collection

              Command and Control

              Exfiltration

              Impact

              Replay Monitor

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              Downloads

              xdwdSearch.exe
              • Path C:\Program Files\xdwdSearch.exe
              • Size 549KB
              • SHA256 329eb190ef905eea7bcabf7ed8938b79edf23836bcda41cc30c6ba6872e52038
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              xdwdSearch.exe.log
              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\xdwdSearch.exe.log
              • Size 1KB
              • SHA256 d049789c187b2f58c900eab10205bc037740dca8640ab40c314790fefaab66ff
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              AppCache134287863960533567.txt
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache134287863960533567.txt
              • Size 84KB
              • SHA256 b3b8596b9d4d43c436f6de8e154e98ad626be0845b3fd4c7d8c77a6ec4bd4249
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              StartUnifiedTileModelCache.dat
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
              • Size 30KB
              • SHA256 e743847527ce198145cdff5b6242cc9b0aa8e1d0af55375d6a2ab505819e6321
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              tmp718C.tmp.bat
              • Path C:\Users\Admin\AppData\Local\Temp\tmp718C.tmp.bat
              • Size 206B
              • SHA256 0160e2d7d1326688351d6ba452deb72d2695d478f64ae1996dac2c7857d2ede4
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              xdwd.dll
              • Path C:\Windows\xdwd.dll
              • Size 136KB
              • SHA256 35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/1628-140-0x0000026B87800000-0x0000026B87900000-memory.dmp
              Download

              memory/1628-156-0x0000026B885E0000-0x0000026B88600000-memory.dmp
              Download

              memory/1628-168-0x0000026B88C80000-0x0000026B88CA0000-memory.dmp
              Download

              memory/1628-144-0x0000026B88820000-0x0000026B88840000-memory.dmp
              Download

              memory/1628-141-0x0000026B87800000-0x0000026B87900000-memory.dmp
              Download

              memory/1928-138-0x0000000003040000-0x0000000003041000-memory.dmp
              Download

              memory/4948-115-0x0000028455D90000-0x0000028455E08000-memory.dmp
              Download

              memory/4948-123-0x0000028455F90000-0x00000284564CE000-memory.dmp
              Download

              memory/4948-118-0x0000028455F40000-0x0000028455F8A000-memory.dmp
              Download

              memory/4948-117-0x0000028455EB0000-0x0000028455EDA000-memory.dmp
              Download

              memory/4948-116-0x0000028455EF0000-0x0000028455F3C000-memory.dmp
              Download

              memory/5008-0-0x00000268F2430000-0x00000268F24BE000-memory.dmp
              Download

              memory/5008-1-0x00000268F4B50000-0x00000268F4B60000-memory.dmp
              Download