Analysis
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max time kernel
119s -
max time network
117s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16-01-2025 16:24
Static task
static1
Behavioral task
behavioral1
Sample
6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe
Resource
win10v2004-20241007-en
General
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Target
6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe
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Size
30KB
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MD5
19de48e4e81f875006c35199f29f0f11
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SHA1
9c49296219e43eb7ee1cbe278b3eb57939b15b59
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SHA256
6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d
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SHA512
57555951d496e1e8fbd9e6ae0f7b76630a2d61d665ce19da1a89c330d4cc3fea7bbd9f91f88e38eb93e62a6b11f221844873f6d0af751f940fff9aecad487a7b
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SSDEEP
768:ZWN1SPXImFO2n8dPiXVBTX6Cjs2x3i7jMCP8/qg/vE1M:ZW7jmFZ8dPkfTK5286/qg/v2M
Malware Config
Extracted
njrat
0.7d
HacKed
meroelbob213.ddns.net:1177
200f5d46ed258f031642c1880205412e
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reg_key
200f5d46ed258f031642c1880205412e
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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 4104 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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation 6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe -
Executes dropped EXE 1 IoCs
pid Process 2660 server.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\200f5d46ed258f031642c1880205412e = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\200f5d46ed258f031642c1880205412e = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." server.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\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe Token: 33 2660 server.exe Token: SeIncBasePriorityPrivilege 2660 server.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1596 wrote to memory of 2660 1596 6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe 83 PID 1596 wrote to memory of 2660 1596 6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe 83 PID 2660 wrote to memory of 4104 2660 server.exe 92 PID 2660 wrote to memory of 4104 2660 server.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe"C:\Users\Admin\AppData\Local\Temp\6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1596 -
C:\Users\Admin\AppData\Roaming\server.exe"C:\Users\Admin\AppData\Roaming\server.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2660 -
C:\Windows\SYSTEM32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:4104
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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
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
30KB
MD519de48e4e81f875006c35199f29f0f11
SHA19c49296219e43eb7ee1cbe278b3eb57939b15b59
SHA2566bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d
SHA51257555951d496e1e8fbd9e6ae0f7b76630a2d61d665ce19da1a89c330d4cc3fea7bbd9f91f88e38eb93e62a6b11f221844873f6d0af751f940fff9aecad487a7b