Analysis
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max time kernel
119s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
07-01-2025 21:05
Static task
static1
Behavioral task
behavioral1
Sample
9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe
Resource
win10v2004-20241007-en
General
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Target
9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe
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Size
201KB
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MD5
7855fb138912d913cbd57fb57bb081b0
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SHA1
91b008e69e641632e337ed35dda884db11333dc1
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SHA256
9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58
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SHA512
05cde06159e15f13aafae3ce206c9152cac300e07b8581c2606ecbf68c999105f98db16494926ee644361fb41a587a3e9b820fd68f7542e0dc4b932da2c9c321
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SSDEEP
6144:o4DpCY2GhN5TMQEZckZOWf/XEX1Bl+DT:oK2iNmQEdZOWf/cbl+v
Malware Config
Signatures
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Njrat family
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2776 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\02934f9c06d0b6525074e50ebcb17b4f.exe Chrome.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\02934f9c06d0b6525074e50ebcb17b4f.exe Chrome.exe -
Executes dropped EXE 1 IoCs
pid Process 2432 Chrome.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Chrome.exe 9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.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 9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Chrome.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe Token: 33 2432 Chrome.exe Token: SeIncBasePriorityPrivilege 2432 Chrome.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1716 wrote to memory of 2432 1716 9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe 28 PID 1716 wrote to memory of 2432 1716 9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe 28 PID 1716 wrote to memory of 2432 1716 9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe 28 PID 1716 wrote to memory of 2432 1716 9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe 28 PID 2432 wrote to memory of 2776 2432 Chrome.exe 29 PID 2432 wrote to memory of 2776 2432 Chrome.exe 29 PID 2432 wrote to memory of 2776 2432 Chrome.exe 29 PID 2432 wrote to memory of 2776 2432 Chrome.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe"C:\Users\Admin\AppData\Local\Temp\9d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58N.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\Chrome.exe"C:\Windows\Chrome.exe"2⤵
- Drops startup file
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2432 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\Chrome.exe" "Chrome.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2776
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Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Replay Monitor
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Downloads
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Filesize
201KB
MD57855fb138912d913cbd57fb57bb081b0
SHA191b008e69e641632e337ed35dda884db11333dc1
SHA2569d520c7da61215db90f25785cdd81733878507a8c7cdce7de8f2054e6702df58
SHA51205cde06159e15f13aafae3ce206c9152cac300e07b8581c2606ecbf68c999105f98db16494926ee644361fb41a587a3e9b820fd68f7542e0dc4b932da2c9c321