Analysis
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max time kernel
112s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2024 13:36
Static task
static1
Behavioral task
behavioral1
Sample
34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe
Resource
win10v2004-20241007-en
General
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Target
34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe
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Size
95KB
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MD5
28cfadb2dc13d3274d30e5117757420f
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SHA1
1364505c347631d3b33b36c9f6497abff3d35f2e
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SHA256
34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560
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SHA512
435bab82617962e03442de4b1c65af8291c3e633703670abaf6ad379e989c34724318f7fc12f4354b9557a82b06f86fc66f16a53b96dfc8b154f6f15aa3e491b
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SSDEEP
1536:8+ZQMGdeUwljEoKayOxdcJx7OXMHwhkVfjobkZKQ5x1AkSpoHHNLHieBbq:8+ZQMtU9Jx7OXMHwhkVfjobkZKQ5x1Du
Malware Config
Extracted
njrat
0.6.4
scammer
oxy01.linkpc.net:1177
08f4dc96bbb7af09d1a37fe35c75a42f
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reg_key
08f4dc96bbb7af09d1a37fe35c75a42f
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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 4660 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe -
Executes dropped EXE 1 IoCs
pid Process 3288 explorer.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 value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \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 34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious behavior: EnumeratesProcesses 24 IoCs
pid Process 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe 3288 explorer.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3288 explorer.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4796 wrote to memory of 3288 4796 34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe 84 PID 4796 wrote to memory of 3288 4796 34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe 84 PID 4796 wrote to memory of 3288 4796 34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe 84 PID 3288 wrote to memory of 4660 3288 explorer.exe 85 PID 3288 wrote to memory of 4660 3288 explorer.exe 85 PID 3288 wrote to memory of 4660 3288 explorer.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe"C:\Users\Admin\AppData\Local\Temp\34a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Users\Admin\AppData\Local\Temp\explorer.exe"C:\Users\Admin\AppData\Local\Temp\explorer.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3288 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.exe" "explorer.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4660
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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
95KB
MD528cfadb2dc13d3274d30e5117757420f
SHA11364505c347631d3b33b36c9f6497abff3d35f2e
SHA25634a843564645e75e6e95cf4bf079dcdf56ba51eca758cad65e0d986bbe359560
SHA512435bab82617962e03442de4b1c65af8291c3e633703670abaf6ad379e989c34724318f7fc12f4354b9557a82b06f86fc66f16a53b96dfc8b154f6f15aa3e491b