Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
23/07/2026, 02:51
General
- Target 2026-07-23_10061fd5a7fe3587d0fb0160a9516eff_cryptbot_icedid_luca-stealer_njrat_stealc.exe
- Size 2.7MB
- Sample260723-dcdbhafe94
- SHA256 5c912d66a53bcbb0d7029fa80037e75339095b7d8c9b68914fbabf20bc8acfaf
Malware Config
Extracted
-
quasar
-
1.6.6
-
akushu chammar ha
-
52.66.239.168:8081
-
b82b595c-02ab-4434-9172-5c5fe86b3bc5
-
encryption_key
55D39DB273D4FFC505D375B952F764A7D2404845
-
install_name
RuntimeBroker.exe
-
key_salt
5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382
-
reconnect_delay
3000
-
startup_key
RuntimeBroker
-
subdirectory
Dir
Signatures
- Family: Defendnot
Defendnot is a tool designed to disable Microsoft Defender.
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Detects Defendnot 1 IoCs
- Quasar payload 2 IoCs
- Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF 2 IoCs
- Detects Windows executables referencing non-Windows User-Agents 2 IoCs
- Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 2 IoCs
- Detects executables manipulated with Fody 2 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.
- Executes dropped EXE 4 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.
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 5 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\2026-07-23_10061fd5a7fe3587d0fb0160a9516eff_cryptbot_icedid_luca-stealer_njrat_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-23_10061fd5a7fe3587d0fb0160a9516eff_cryptbot_icedid_luca-stealer_njrat_stealc.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RarSFX0\𝙈𝙪𝙠𝙪𝙡.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\𝙈𝙪𝙠𝙪𝙡.exe"2⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Temp\RarSFX0\RuntimeBroker.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\RuntimeBroker.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -c Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\dzzfrsoo.xwy3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "RuntimeBroker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Dir\RuntimeBroker.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\Dir\RuntimeBroker.exe"C:\Users\Admin\AppData\Roaming\Dir\RuntimeBroker.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "RuntimeBroker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Dir\RuntimeBroker.exe" /rl HIGHEST /f4⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -c Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\mfdzrxrm.z3e4⤵
- Command and Scripting Interpreter: PowerShell
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -c Add-MpPreference -ExclusionProcess defendnot-loader.exe4⤵
- Command and Scripting Interpreter: PowerShell
-
-
C:\Users\Admin\AppData\Local\Temp\mfdzrxrm.z3e\defendnot-loader.exe"C:\Users\Admin\AppData\Local\Temp\mfdzrxrm.z3e\defendnot-loader.exe" --silent --name "Windows Security"4⤵
-
C:\Windows\SYSTEM32\Taskmgr.exeTaskmgr.exe5⤵
-
-
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -c Add-MpPreference -ExclusionProcess defendnot-loader.exe3⤵
- Command and Scripting Interpreter: PowerShell
-
-
C:\Users\Admin\AppData\Local\Temp\dzzfrsoo.xwy\defendnot-loader.exe"C:\Users\Admin\AppData\Local\Temp\dzzfrsoo.xwy\defendnot-loader.exe" --silent --name "Windows Security"3⤵
-
C:\Windows\SYSTEM32\Taskmgr.exeTaskmgr.exe4⤵
-
-
-
-
C:\Users\Admin\AppData\Roaming\Dir\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\Dir\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\dzzfrsoo.xwy\defendnot-loader.exeC:\Users\Admin\AppData\Local\Temp\dzzfrsoo.xwy\defendnot-loader.exe1⤵
-
C:\Windows\SYSTEM32\Taskmgr.exeTaskmgr.exe2⤵
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c pause2⤵
- Executes a command shell one-liner
-
-
C:\Program Files\Windows Defender\MpCmdRun.exe"C:\Program Files\Windows Defender\MpCmdRun.exe" -wdenable1⤵
-
C:\Users\Admin\AppData\Local\Temp\mfdzrxrm.z3e\defendnot-loader.exeC:\Users\Admin\AppData\Local\Temp\mfdzrxrm.z3e\defendnot-loader.exe1⤵
-
C:\Windows\SYSTEM32\Taskmgr.exeTaskmgr.exe2⤵
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c pause2⤵
- Executes a command shell one-liner
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
RuntimeBroker.exe
𝙈𝙪𝙠𝙪𝙡.exe
__PSScriptPolicyTest_aruzudvl.seg.ps1
ctx.bin
ctx.bin
defendnot-loader.exe
defendnot.dll
memory/1440-54-0x000002116AB60000-0x000002116AB8A000-memory.dmp
memory/1440-53-0x000002116ACA0000-0x000002116ACEA000-memory.dmp
memory/1440-52-0x000002116AC50000-0x000002116AC9C000-memory.dmp
memory/1440-51-0x000002116AB20000-0x000002116AB54000-memory.dmp
memory/1440-49-0x000002116AAD0000-0x000002116AB1E000-memory.dmp
memory/1440-48-0x0000021167F20000-0x0000021167F6A000-memory.dmp
memory/1440-50-0x0000021167FC0000-0x0000021167FE6000-memory.dmp
memory/1440-47-0x000002116AB90000-0x000002116AC42000-memory.dmp
memory/1440-46-0x0000021167F70000-0x0000021167FC0000-memory.dmp
memory/1440-45-0x0000021167EE0000-0x0000021167F1A000-memory.dmp
memory/3764-26-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-25-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-18-0x00007FFBA7BCF000-0x00007FFBA7BD0000-memory.dmp
memory/3764-19-0x0000020DDCDD0000-0x0000020DDD06C000-memory.dmp
memory/3764-20-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-32-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-31-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-30-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-29-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-28-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-27-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-21-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-57-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-24-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-23-0x00007FFBA7A40000-0x00007FFBA83E4000-memory.dmp
memory/3764-73-0x0000020DDDEF0000-0x0000020DDDF02000-memory.dmp
memory/3764-72-0x0000020DDDEC0000-0x0000020DDDECA000-memory.dmp
memory/3764-22-0x0000020DDDDC0000-0x0000020DDDDDE000-memory.dmp
memory/4920-42-0x000002AB7E580000-0x000002AB7E58A000-memory.dmp
memory/4920-35-0x000002AB7FD90000-0x000002AB7FDB2000-memory.dmp
memory/4920-40-0x000002AB18810000-0x000002AB1882E000-memory.dmp
memory/4920-41-0x000002AB18830000-0x000002AB188E2000-memory.dmp