Analysis
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max time kernel
150s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
17-12-2024 04:22
Behavioral task
behavioral1
Sample
b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe
Resource
win7-20241010-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
14 signatures
150 seconds
General
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Target
b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe
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Size
37KB
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MD5
d51ff4ddc2f854ca93e0f1d04b73f29e
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SHA1
48c15d887fdb2b303def489c857db926cc4453ee
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SHA256
b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5
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SHA512
5103202e3357da07625653c74957b85949467a7b26506148981e3469ac0df6003e1823f7d66880da31bbc7edfb0e4d93aade6c9c989fb71fcfcac12e434562d4
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SSDEEP
384:jp3Eqi0PJZtbH9KyM+2LzmQnfSsWQTNrAF+rMRTyN/0L+EcoinblneHQM3epzXFn:FfJ95M+2L6Q6tQhrM+rMRa8NuPcwt
Malware Config
Extracted
Family
njrat
Version
im523
Botnet
svchost.exe
C2
pool-tournaments.gl.at.ply.gg:7445
Mutex
65449e22560e51e0740c2a10dc6c9c59
Attributes
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reg_key
65449e22560e51e0740c2a10dc6c9c59
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splitter
|'|'|
Signatures
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Njrat family
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2060 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\65449e22560e51e0740c2a10dc6c9c59.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\65449e22560e51e0740c2a10dc6c9c59.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2736 svchost.exe -
Loads dropped DLL 1 IoCs
pid Process 2492 b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\65449e22560e51e0740c2a10dc6c9c59 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .." svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\65449e22560e51e0740c2a10dc6c9c59 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .." svchost.exe -
Drops autorun.inf file 1 TTPs 5 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created D:\autorun.inf svchost.exe File created F:\autorun.inf svchost.exe File opened for modification F:\autorun.inf svchost.exe File created C:\autorun.inf svchost.exe File opened for modification C:\autorun.inf svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Kills process with taskkill 1 IoCs
pid Process 2632 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe 2736 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2736 svchost.exe -
Suspicious use of AdjustPrivilegeToken 36 IoCs
description pid Process Token: SeDebugPrivilege 2736 svchost.exe Token: SeDebugPrivilege 2632 taskkill.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe Token: 33 2736 svchost.exe Token: SeIncBasePriorityPrivilege 2736 svchost.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2492 wrote to memory of 2736 2492 b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe 30 PID 2492 wrote to memory of 2736 2492 b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe 30 PID 2492 wrote to memory of 2736 2492 b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe 30 PID 2492 wrote to memory of 2736 2492 b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe 30 PID 2736 wrote to memory of 2060 2736 svchost.exe 31 PID 2736 wrote to memory of 2060 2736 svchost.exe 31 PID 2736 wrote to memory of 2060 2736 svchost.exe 31 PID 2736 wrote to memory of 2060 2736 svchost.exe 31 PID 2736 wrote to memory of 2632 2736 svchost.exe 33 PID 2736 wrote to memory of 2632 2736 svchost.exe 33 PID 2736 wrote to memory of 2632 2736 svchost.exe 33 PID 2736 wrote to memory of 2632 2736 svchost.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe"C:\Users\Admin\AppData\Local\Temp\b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2060
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C:\Windows\SysWOW64\taskkill.exetaskkill /F /IM ApplicationFrameHost.exe3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2632
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
37KB
MD5d51ff4ddc2f854ca93e0f1d04b73f29e
SHA148c15d887fdb2b303def489c857db926cc4453ee
SHA256b4805d9fa4ac2354f8819c739ddf7095c397e916b29468f065c0907394909fe5
SHA5125103202e3357da07625653c74957b85949467a7b26506148981e3469ac0df6003e1823f7d66880da31bbc7edfb0e4d93aade6c9c989fb71fcfcac12e434562d4