Analysis
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max time kernel
150s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17-12-2024 04:27
Behavioral task
behavioral1
Sample
bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
General
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Target
bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe
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Size
37KB
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MD5
0a09aa08c401a1c24b8fb8535e16e25a
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SHA1
1fc2e9207b54d49c74e9fd3e833cd1dc088022d2
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SHA256
bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330
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SHA512
4b4dddb99654be87304a1b1542098c82f95f3f8c35a1d1b19a8a014b29713fb37e87dabc5f24a53d10203b36bd4f9552e97f812951477975ae613d8ea6db1427
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SSDEEP
384:hSNBkiy5nDNGRn5IyUvgI1P9h4/C254crAF+rMRTyN/0L+EcoinblneHQM3epzXJ:4O5M5jUv11wq2+crM+rMRa8NuCbet
Malware Config
Extracted
njrat
im523
Hacked
wbouchraros.theworkpc.com:5552
636e3f8f7cbfc871c59e6d158a287b2f
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reg_key
636e3f8f7cbfc871c59e6d158a287b2f
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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 2748 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\636e3f8f7cbfc871c59e6d158a287b2f.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\636e3f8f7cbfc871c59e6d158a287b2f.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2396 svchost.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\636e3f8f7cbfc871c59e6d158a287b2f = "\"C:\\Windows\\svchost.exe\" .." svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\636e3f8f7cbfc871c59e6d158a287b2f = "\"C:\\Windows\\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 -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\svchost.exe bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe File opened for modification C:\Windows\svchost.exe bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe File opened for modification C:\Windows\svchost.exe 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 3 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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2396 svchost.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe Token: 33 2396 svchost.exe Token: SeIncBasePriorityPrivilege 2396 svchost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1952 wrote to memory of 2396 1952 bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe 30 PID 1952 wrote to memory of 2396 1952 bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe 30 PID 1952 wrote to memory of 2396 1952 bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe 30 PID 1952 wrote to memory of 2396 1952 bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe 30 PID 2396 wrote to memory of 2748 2396 svchost.exe 31 PID 2396 wrote to memory of 2748 2396 svchost.exe 31 PID 2396 wrote to memory of 2748 2396 svchost.exe 31 PID 2396 wrote to memory of 2748 2396 svchost.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe"C:\Users\Admin\AppData\Local\Temp\bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\svchost.exe"C:\Windows\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\svchost.exe" "svchost.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2748
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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
MD50a09aa08c401a1c24b8fb8535e16e25a
SHA11fc2e9207b54d49c74e9fd3e833cd1dc088022d2
SHA256bf6a3c9e2fc15c686a58e2d146a7518e7484b51372dd432a5863bae057623330
SHA5124b4dddb99654be87304a1b1542098c82f95f3f8c35a1d1b19a8a014b29713fb37e87dabc5f24a53d10203b36bd4f9552e97f812951477975ae613d8ea6db1427