Overview

overview

10

Static

static

3

cybq5uky7rf42l6y.exe

windows10-ltsc_2021-x64

10

cybq5uky7rf42l6y.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    600s
  • max time network
    594s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260911-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    22/09/2026, 14:29

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General

  • Target
    cybq5uky7rf42l6y.exe
  • Size 826KB
  • Sample260922-rtms6avwe1
  • SHA256 f44d60a940a34cc56e3da72b758eed75c3f66ee06e604996249617de00cbbf59
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoveryexecutionpersistenceprivilege_escalationransomwarespyware

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 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 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates connected drives 3 TTPs 4 IoCs

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

  • Looks up external IP address via web service 1 TTPs 3 IoCs

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

    discovery
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 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 64 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
    adwarespyware
  • 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 behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 8 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\cybq5uky7rf42l6y.exe
    "C:\Users\Admin\AppData\Local\Temp\cybq5uky7rf42l6y.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3220
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
        PID:1128
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" 471|m0dDEgTj2/wilUgRT7lzezzDU162V67Y3hlC3BR/HfWF+gsk7qnCMd8GK5kTdmm4WindowsControl472|w91Waq66OEqO3egYC7c1RLBc7emmvCLfn8Kl8RZCAms=C:\Program Files\Searchx86.exe" enable=yes & exit
        2⤵
          PID:688
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\Searchx86.exe" /RL HIGHEST & exit
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:552
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\Searchx86.exe" /RL HIGHEST
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:5836
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\Searcherx86.exe" /RL HIGHEST & exit
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:3096
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\Searcherx86.exe" /RL HIGHEST
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:5088
        • C:\Program Files\Searchx86.exe
          "C:\Program Files\Searchx86.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4824
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            3⤵
            • Loads dropped DLL
            PID:4016
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:4800
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
        1⤵
          PID:4412
        • 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:936
        • 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:4004
        • C:\Windows\explorer.exe
          explorer.exe
          1⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Loads dropped DLL
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:4272
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
          1⤵
          • Loads dropped DLL
          PID:4160
        • 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:3616
        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
          1⤵
          • Suspicious use of SetWindowsHookEx
          PID:2428

        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

              3
              T1112

              Credential Access

              Discovery

              Peripheral Device Discovery

              2
              T1120

              Query Registry

              4
              T1012

              System Information Discovery

              4
              T1082

              System Network Configuration Discovery

              1
              T1016

              Internet Connection Discovery

              1
              T1016.001

              Lateral Movement

              Collection

              Command and Control

              Exfiltration

              Impact

              Replay Monitor

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              Downloads

              Searchx86.exe
              • Path C:\Program Files\Searchx86.exe
              • Size 826KB
              • SHA256 f44d60a940a34cc56e3da72b758eed75c3f66ee06e604996249617de00cbbf59
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              StructuredQuerySchema.bin
              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\1033\StructuredQuerySchema.bin
              • Size 414KB
              • SHA256 4d71760d6f3159849068b635ab4c39b9b747d899f03670533971a62d262c264e
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              fbaf94e759052658216786bfbabcdced1b67a5c2.tbres
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\TokenBroker\Cache\fbaf94e759052658216786bfbabcdced1b67a5c2.tbres
              • Size 2KB
              • SHA256 e33e1fe178eceeada237009f8bff6f5f803b3890a3d6b4499ae167b775becce2
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              AppCache134345610177445701.txt
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache134345610177445701.txt
              • Size 85KB
              • SHA256 fc78e84d657b2e760d5e19b01da897be2a7f95f137b6d81df3b76569980933fd
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              microsoft.windows[1].xml
              • Path C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\670141SS\microsoft.windows[1].xml
              • Size 97B
              • SHA256 0fa0aca8a71e8d514af22736b51582b4c0d34c3da86e45ae85299399e2469c21
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              junk.dll
              • Path C:\Windows\junk.dll
              • Size 58KB
              • SHA256 bd02435863c792fd6247bcc1242b12dca250a7db42cb8aa3e41170880881dadc
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/2428-260-0x00000273E8B20000-0x00000273E8C20000-memory.dmp
              Download

              memory/2428-343-0x0000026BD2850000-0x0000026BD4180000-memory.dmp
              Download

              memory/2428-367-0x0000026BD2850000-0x0000026BD4180000-memory.dmp
              Download

              memory/2428-317-0x00000273E8800000-0x00000273E8900000-memory.dmp
              Download

              memory/2428-213-0x00000273D4330000-0x00000273D4430000-memory.dmp
              Download

              memory/2428-246-0x00000273D5A40000-0x00000273D5A60000-memory.dmp
              Download

              memory/2428-245-0x00000273D72A0000-0x00000273D72C0000-memory.dmp
              Download

              memory/2428-229-0x00000273D5A20000-0x00000273D5A40000-memory.dmp
              Download

              memory/2428-214-0x00000273D4330000-0x00000273D4430000-memory.dmp
              Download

              memory/2428-215-0x00000273D4330000-0x00000273D4430000-memory.dmp
              Download

              memory/3220-0-0x0000023818BD0000-0x0000023818CA4000-memory.dmp
              Download

              memory/3220-18-0x00000238190A0000-0x00000238190B0000-memory.dmp
              Download

              memory/3220-1-0x00000238190A0000-0x00000238190B0000-memory.dmp
              Download

              memory/4004-68-0x0000013E3D6B0000-0x0000013E3D7B0000-memory.dmp
              Download

              memory/4004-134-0x0000013E3D360000-0x0000013E3D460000-memory.dmp
              Download

              memory/4004-21-0x0000013E27B00000-0x0000013E27C00000-memory.dmp
              Download

              memory/4004-39-0x0000013E287C0000-0x0000013E287E0000-memory.dmp
              Download

              memory/4004-53-0x0000013E2A100000-0x0000013E2A120000-memory.dmp
              Download

              memory/4004-54-0x0000013E287E0000-0x0000013E28800000-memory.dmp
              Download

              memory/4004-181-0x0000013625E20000-0x0000013627750000-memory.dmp
              Download

              memory/4016-197-0x00007FFE41D20000-0x00007FFE41D36000-memory.dmp
              Download

              memory/4160-210-0x00007FFE41D20000-0x00007FFE41D36000-memory.dmp
              Download

              memory/4272-176-0x0000000002A00000-0x0000000002A01000-memory.dmp
              Download

              memory/4272-169-0x00000000029C0000-0x00000000029C1000-memory.dmp
              Download

              memory/4272-174-0x00000000029E0000-0x00000000029E1000-memory.dmp
              Download

              memory/4272-177-0x0000000002A10000-0x0000000002A11000-memory.dmp
              Download

              memory/4272-178-0x0000000002A10000-0x0000000002A11000-memory.dmp
              Download

              memory/4272-179-0x0000000002A20000-0x0000000002A21000-memory.dmp
              Download

              memory/4272-180-0x0000000002A20000-0x0000000002A21000-memory.dmp
              Download

              memory/4272-175-0x0000000002A00000-0x0000000002A01000-memory.dmp
              Download

              memory/4272-212-0x0000000002DE0000-0x0000000002DE1000-memory.dmp
              Download

              memory/4272-170-0x00000000029C0000-0x00000000029C1000-memory.dmp
              Download

              memory/4272-171-0x00000000029D0000-0x00000000029D1000-memory.dmp
              Download

              memory/4272-327-0x00007FFE41D20000-0x00007FFE41D36000-memory.dmp
              Download

              memory/4272-172-0x00000000029D0000-0x00000000029D1000-memory.dmp
              Download

              memory/4272-173-0x00000000029E0000-0x00000000029E1000-memory.dmp
              Download

              memory/4800-20-0x0000000002D00000-0x0000000002D01000-memory.dmp
              Download