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Analysis
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max time kernel
119s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
08/11/2024, 01:55
Behavioral task
behavioral1
Sample
978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe
Resource
win10v2004-20241007-en
General
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Target
978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe
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Size
23KB
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MD5
503c1d7ae9df78277314e1a51e36b480
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SHA1
1b82a2b96e8d45a1e5dfb564f4223fb62a4497fd
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SHA256
978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803
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SHA512
eea52954bf655e224f74cee7f16ad7ce47f2cbdf4d26be62987be514151b33b162e431bd3c5fc4c4a423191c5207971c3d371d6ce08c1a0698bb1554c1d7cc56
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SSDEEP
384:TslUlEvOEJ8xWwYJOMiOBZEdj1567gtwi5HhbQmRvR6JZlbw8hqIusZzZFz:keEvwIlLMRpcnuS
Malware Config
Extracted
njrat
0.7d
HacKed
10.10.10.18:5552
54435c35e0b080ff81569515525baf6b
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reg_key
54435c35e0b080ff81569515525baf6b
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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 2600 netsh.exe -
Executes dropped EXE 1 IoCs
pid Process 2788 server.exe -
Loads dropped DLL 1 IoCs
pid Process 2280 978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\54435c35e0b080ff81569515525baf6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\54435c35e0b080ff81569515525baf6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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\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 978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe Token: 33 2788 server.exe Token: SeIncBasePriorityPrivilege 2788 server.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2280 wrote to memory of 2788 2280 978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe 31 PID 2280 wrote to memory of 2788 2280 978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe 31 PID 2280 wrote to memory of 2788 2280 978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe 31 PID 2280 wrote to memory of 2788 2280 978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe 31 PID 2788 wrote to memory of 2600 2788 server.exe 32 PID 2788 wrote to memory of 2600 2788 server.exe 32 PID 2788 wrote to memory of 2600 2788 server.exe 32 PID 2788 wrote to memory of 2600 2788 server.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe"C:\Users\Admin\AppData\Local\Temp\978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803N.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2600
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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
23KB
MD5503c1d7ae9df78277314e1a51e36b480
SHA11b82a2b96e8d45a1e5dfb564f4223fb62a4497fd
SHA256978f21c63ac47401164ba07cd68f06190a29cfc306c65b195e0c45d12a747803
SHA512eea52954bf655e224f74cee7f16ad7ce47f2cbdf4d26be62987be514151b33b162e431bd3c5fc4c4a423191c5207971c3d371d6ce08c1a0698bb1554c1d7cc56