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
02-09-2024 02:09
Behavioral task
behavioral1
Sample
e4845dcb52a3c7f7a8d483d73ff03510N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
e4845dcb52a3c7f7a8d483d73ff03510N.exe
Resource
win10v2004-20240802-en
General
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Target
e4845dcb52a3c7f7a8d483d73ff03510N.exe
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Size
23KB
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MD5
e4845dcb52a3c7f7a8d483d73ff03510
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SHA1
0aa86ab7e571598dc2498ab1136ade10788b05c1
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SHA256
dcabd39d5ccdeb0d94dc2072903f270aa5d68dacc3d4149a9d8e6b90e8396e55
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SHA512
2737fe0cc58357bcf408ea3de1b54286a46d56666114a30772e574d2711090495d7f29fc6e3587d4102328a6d73cb68fd20c4667e5f06708f5f9fca282cdb9d2
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SSDEEP
384:TPoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZKW:To7O89p2rRpcnu6
Malware Config
Extracted
njrat
0.7d
HacKed
127.0.0.1:5552
71d4a517242481fcbbd31dd50ae04a6b
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reg_key
71d4a517242481fcbbd31dd50ae04a6b
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2684 netsh.exe -
Executes dropped EXE 1 IoCs
pid Process 2304 serve2r.exe -
Loads dropped DLL 1 IoCs
pid Process 1964 e4845dcb52a3c7f7a8d483d73ff03510N.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\71d4a517242481fcbbd31dd50ae04a6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\serve2r.exe\" .." serve2r.exe Set value (str) \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\71d4a517242481fcbbd31dd50ae04a6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\serve2r.exe\" .." serve2r.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 e4845dcb52a3c7f7a8d483d73ff03510N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language serve2r.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe Token: 33 2304 serve2r.exe Token: SeIncBasePriorityPrivilege 2304 serve2r.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1964 wrote to memory of 2304 1964 e4845dcb52a3c7f7a8d483d73ff03510N.exe 31 PID 1964 wrote to memory of 2304 1964 e4845dcb52a3c7f7a8d483d73ff03510N.exe 31 PID 1964 wrote to memory of 2304 1964 e4845dcb52a3c7f7a8d483d73ff03510N.exe 31 PID 1964 wrote to memory of 2304 1964 e4845dcb52a3c7f7a8d483d73ff03510N.exe 31 PID 2304 wrote to memory of 2684 2304 serve2r.exe 32 PID 2304 wrote to memory of 2684 2304 serve2r.exe 32 PID 2304 wrote to memory of 2684 2304 serve2r.exe 32 PID 2304 wrote to memory of 2684 2304 serve2r.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\e4845dcb52a3c7f7a8d483d73ff03510N.exe"C:\Users\Admin\AppData\Local\Temp\e4845dcb52a3c7f7a8d483d73ff03510N.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1964 -
C:\Users\Admin\AppData\Local\Temp\serve2r.exe"C:\Users\Admin\AppData\Local\Temp\serve2r.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:2304 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\serve2r.exe" "serve2r.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2684
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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
MD5e4845dcb52a3c7f7a8d483d73ff03510
SHA10aa86ab7e571598dc2498ab1136ade10788b05c1
SHA256dcabd39d5ccdeb0d94dc2072903f270aa5d68dacc3d4149a9d8e6b90e8396e55
SHA5122737fe0cc58357bcf408ea3de1b54286a46d56666114a30772e574d2711090495d7f29fc6e3587d4102328a6d73cb68fd20c4667e5f06708f5f9fca282cdb9d2