Analysis
- max time kernel
149s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/11/2026, 19:12
Behavioral task
behavioral1
Sample
test.exe
Resource
win10ltsc2021-20260911-en
Behavioral task
behavioral2
Sample
test.exe
Resource
win11ltsc2024-20260911-en
General
- Target test.exe
- Size 43KB
- Sample261107-xwpy7aew21
- SHA256 9625f72921d5a65587f06c773b0a9a89be9d93ad2d50aeb29b8a376064ad2ae8
- MD5 c5620030c1afd3495cf712d7e82d8449
- SHA1 06064cb7bdec87688c53bab92857e3ffdae9714a
- SHA512 24d6f263690dfc5ed0f59d61c6986fe7c7759e75ece713caa12f7ffae8bffa3cf1032abcdcf220beec3b9312d11405892560ed88c41b46455bdad5cb5987deec
- SSDEEP 384:lZyLysXFAJ2HytNSMpmiMwzXU48qpY/u9D9O5UE5QzwBlpJNakkjh/TzF7pWnL1b:vez2oStQMwOIjqCvQO+G13+L
- TLSH T16613D78CB684E174D5FF8BF1B4A2B2890B719017A906D30F99F154D94BB3EC09A11EE7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
njrat
-
Njrat 0.7 Golden By Hassan Amiri
-
LuaTools
-
sfdscbbvdcds.ddns.net:7777
-
Windows Update
-
reg_key
Windows Update
-
splitter
|Hassan|
Signatures
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe Dllhost.exe - Executes dropped EXE 6 IoCs
pid Process 2136 Dllhost.exe 5512 Dllhost.exe 1124 Server.exe 4876 Server.exe 4840 Server.exe 1464 Server.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .." Dllhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .." Dllhost.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Dllhost.exe test.exe File opened for modification C:\Windows\Dllhost.exe Dllhost.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain Dllhost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname Dllhost.exe - System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language test.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Dllhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Dllhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Server.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 6084 schtasks.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 1844 test.exe 2136 Dllhost.exe - Suspicious use of AdjustPrivilegeToken 33 IoCs
description pid Process Token: SeDebugPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe Token: 33 2136 Dllhost.exe Token: SeIncBasePriorityPrivilege 2136 Dllhost.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1844 wrote to memory of 2136 1844 test.exe 90 PID 2136 wrote to memory of 6084 2136 Dllhost.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\test.exe"C:\Users\Admin\AppData\Local\Temp\test.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1844 -
C:\Windows\Dllhost.exe"C:\Windows\Dllhost.exe"2⤵
- Creates a file in the Startup directory
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2136 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:6084
-
-
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C:\Windows\Dllhost.exe"C:\Windows\Dllhost.exe" ..1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5512
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C:\Users\Admin\AppData\Local\Temp\Server.exeC:\Users\Admin\AppData\Local\Temp/Server.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1124
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp/Server.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4876
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:3616
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp/Server.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4840
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp/Server.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1464
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Windows\Dllhost.exe
- Size 43KB
- SHA256 9625f72921d5a65587f06c773b0a9a89be9d93ad2d50aeb29b8a376064ad2ae8
- MD5 c5620030c1afd3495cf712d7e82d8449
- SHA1 06064cb7bdec87688c53bab92857e3ffdae9714a
- SHA512 24d6f263690dfc5ed0f59d61c6986fe7c7759e75ece713caa12f7ffae8bffa3cf1032abcdcf220beec3b9312d11405892560ed88c41b46455bdad5cb5987deec
- SSDEEP 384:lZyLysXFAJ2HytNSMpmiMwzXU48qpY/u9D9O5UE5QzwBlpJNakkjh/TzF7pWnL1b:vez2oStQMwOIjqCvQO+G13+L
- TLSH T16613D78CB684E174D5FF8BF1B4A2B2890B719017A906D30F99F154D94BB3EC09A11EE7
- MD5 SHA1 SHA512 SSDEEP TLSH