Overview

overview

10

Static

static

3

2026-09-24...lc.exe

windows10-2004-x64

10

2026-09-24...lc.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    108s
  • max time network
    123s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 04:48

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General

  • Target
    2026-09-24_903d84c4c4bf9358ef2b9daa136e0b55_cryptbot_icedid_luca-stealer_njrat_stealc.exe
  • Size 33.9MB
  • Sample260925-ffls6ayt3n
  • SHA256 385d0ffe385fa0a8c6120bf39c286fa1b55afd0a93485a842b4afb430ec3ff93
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarestardock start11 x64discoveryexecutionquasarinstallerpersistenceransomwarespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.3.0.0

Botnet

  • Stardock Start11 x64

C2

  • quickbookshelpar.roxa.org:1988

Mutex

  • si8fvunl23i05dLblU

Attributes
  • encryption_key

    n0fUevgbWybUZfKfaO0g

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    HDMI

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Detects executables containing common artifacts observed in infostealers 1 IoCs
  • Detects executables referencing many IR and analysis tools 1 IoCs
  • 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
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 2 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 1 TTPs 1 IoCs

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

    discovery
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Inno Setup is an open-source installation builder for Windows applications. 4 IoCs

    Inno Setup installer

    installer
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 51 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: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 62 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 41 IoCs
  • Suspicious use of SetWindowsHookEx 4 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

Processes

  • C:\Windows\explorer.exe
    explorer.exe /LOADSAVEDWINDOWS
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:5124
    • C:\Users\Admin\AppData\Local\Temp\2026-09-24_903d84c4c4bf9358ef2b9daa136e0b55_cryptbot_icedid_luca-stealer_njrat_stealc.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-09-24_903d84c4c4bf9358ef2b9daa136e0b55_cryptbot_icedid_luca-stealer_njrat_stealc.exe"
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5248
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\driver_booster_setup.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\driver_booster_setup.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1460
        • C:\Users\Admin\AppData\Local\Temp\is-TL602.tmp\driver_booster_setup.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-TL602.tmp\driver_booster_setup.tmp" /SL5="$80084,33445181,139264,C:\Users\Admin\AppData\Local\Temp\RarSFX0\driver_booster_setup.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4532
          • C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp\SetupHlp.exe
            "C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp\SetupHlp.exe" /SetupInit /setup="C:\Users\Admin\AppData\Local\Temp\RarSFX0\driver_booster_setup.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:3132
          • C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp-dbinst\setup.exe
            "C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp-dbinst\setup.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\driver_booster_setup.exe" /PrName="iobit" /title="Driver Booster 14" /dbver=14.0.1.462 /eula="C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp-dbinst\EULA.rtf" /showlearnmore /pmtproduct /nochromepmt /runupt
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Enumerates system info in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            PID:1672
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\cf235fe020834b8cbfd344073d339177.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\cf235fe020834b8cbfd344073d339177.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5540
        • C:\Windows\System32\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /xml "C:\Users\Admin\AppData\Local\Temp\MsEdgeUpdate.xml" /tn "\Users\Admin\winhelpars" /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4880
  • C:\Users\Admin\AppData\Local\Microsoft\helparcdm.exe
    C:\Users\Admin\AppData\Local\Microsoft\helparcdm.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5544
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /xml "C:\Users\Admin\AppData\Local\Temp\MsEdgeUpdate.xml" /tn "\Users\Admin\winhelpars" /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3864
  • C:\Windows\system32\userinit.exe
    C:\Windows\system32\userinit.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1260
    • 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 Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3188
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3728
  • 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:1552

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        pdinst.ini
        • Path C:\ProgramData\pdinst.ini
        • Size 102B
        • SHA256 b181fea908face3d00fc12fb2694b30f72cfae9b797d9101d31b825906a9e2c5
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        prep_Activatable Class_Hermes_perf.cache
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
        • Size 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ENGLISH.lng
        • Path C:\Users\Admin\AppData\Local\Temp\1790315370\ENGLISH.lng
        • Size 25KB
        • SHA256 b9b18c1242fad022bb632cc841609ff08b51f3d44de95f3e11129e5369f56278
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        MsEdgeUpdate.xml
        • Path C:\Users\Admin\AppData\Local\Temp\MsEdgeUpdate.xml
        • Size 1KB
        • SHA256 b1d9ffeca3bd28f1caae7ec6aafa98d6b5e819d80c3137f8c446e6599ef9e17a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        driver_booster_setup.exe
        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\driver_booster_setup.exe
        • Size 32.6MB
        • SHA256 37f881b9f996155037ac829a42680feae04c23c9f1c9a25a0f05af348fe7ab94
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libcrypto-3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp-dbinst\libcrypto-3.dll
        • Size 3.2MB
        • SHA256 5203b280fc972e4c3c2778f17107ffa515bf5743d39fc77e006285136d1184f8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libssl-3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp-dbinst\libssl-3.dll
        • Size 806KB
        • SHA256 3bb558133477b53e98cc68dbefef561b669f99fbddb96f4e8226142518ede35f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.exe
        • Path C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp-dbinst\setup.exe
        • Size 5.6MB
        • SHA256 d0d5fc513409a4f89bb8098273f582c62fed4c219c54d5d987138991e7ff0688
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        SetupHlp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp\SetupHlp.exe
        • Size 2.0MB
        • SHA256 d009175631bf82404ac5a03e0a31eab83902327b6e2c152c0447126fbebdc14e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        SetupInit.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp\SetupInit.tmp
        • Size 46B
        • SHA256 75ec9d429dbed3f5fbbdc7bc1e069f7aa7caab18d5326d775751458345e351f6
        • MD5 SHA1 SHA512
        Submit Download

        local.dat
        • Path C:\Users\Admin\AppData\Local\Temp\is-2S74P.tmp\local.dat
        • Size 1KB
        • SHA256 418cdc836d2cd29ff48501ac39043f560926ae2e4bec2430916c0df6f2828143
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        driver_booster_setup.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\is-TL602.tmp\driver_booster_setup.tmp
        • Size 1.2MB
        • SHA256 97b4539b16a97193d90ea146577784ccda7d760209ecb1a28b03734e2580b662
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Config.ini
        • Path C:\Users\Admin\AppData\Roaming\IObit\Driver Booster\Config.ini
        • Size 2B
        • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
        • MD5 SHA1 SHA512
        Submit Download

        memory/1460-10-0x0000000000400000-0x000000000042C000-memory.dmp
        Download

        memory/1460-45-0x0000000000400000-0x000000000042C000-memory.dmp
        Download

        memory/1460-69-0x0000000000400000-0x000000000042C000-memory.dmp
        Download

        memory/1672-201-0x0000000000400000-0x00000000009E0000-memory.dmp
        Download

        memory/1672-392-0x0000000000400000-0x00000000009E0000-memory.dmp
        Download

        memory/1672-182-0x0000000000400000-0x00000000009E0000-memory.dmp
        Download

        memory/3132-61-0x0000000000400000-0x0000000000607000-memory.dmp
        Download

        memory/3728-221-0x0000015EF66D0000-0x0000015EF67D0000-memory.dmp
        Download

        memory/3728-253-0x00000166F9EC0000-0x00000166F9EE0000-memory.dmp
        Download

        memory/3728-391-0x0000015EF8A00000-0x0000015EF919C000-memory.dmp
        Download

        memory/3728-267-0x00000166FC7E0000-0x00000166FC800000-memory.dmp
        Download

        memory/3728-229-0x00000166F9D80000-0x00000166F9DA0000-memory.dmp
        Download

        memory/3728-231-0x00000166FC000000-0x00000166FC100000-memory.dmp
        Download

        memory/4532-68-0x0000000000400000-0x0000000000532000-memory.dmp
        Download

        memory/4532-17-0x0000000002300000-0x0000000002301000-memory.dmp
        Download

        memory/4532-47-0x0000000002300000-0x0000000002301000-memory.dmp
        Download

        memory/4532-46-0x0000000000400000-0x0000000000532000-memory.dmp
        Download

        memory/5124-188-0x00000000039D0000-0x0000000003A32000-memory.dmp
        Download

        memory/5124-199-0x0000000000E80000-0x0000000000E81000-memory.dmp
        Download

        memory/5124-198-0x0000000000E90000-0x0000000000E91000-memory.dmp
        Download

        memory/5124-191-0x0000000008F10000-0x0000000008F4C000-memory.dmp
        Download

        memory/5124-190-0x0000000005F70000-0x0000000005F82000-memory.dmp
        Download

        memory/5124-189-0x0000000005FF0000-0x000000000604E000-memory.dmp
        Download