Analysis
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max time kernel
119s -
max time network
75s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04-12-2024 01:03
Static task
static1
Behavioral task
behavioral1
Sample
af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe
Resource
win10v2004-20241007-en
General
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Target
af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe
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Size
102KB
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MD5
24195853ff2e9a4d421d1c77cc86c5b1
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SHA1
c00af4632d37f2a4d5198eff0bb08f5d7478632f
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SHA256
af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e
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SHA512
dedeb06f18c6306fc069e9e722e037606aa39200c1196bff20ce894ab4b12ca70367e7f7cd66d91a9353c8844ac774965f1d676c5e0f15945a7e4c2783bc8380
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SSDEEP
3072:0C3MFMCcB/tldVNFa1Vt05DHlFi2h7d8vCCYvyi:0C86CcB/tldVNFax+Di2hxIdCn
Malware Config
Extracted
njrat
0.7d
douda
love2014.ddns.net:5584
77ee8a49b5a8f18159dc862b4f0bcfb0
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reg_key
77ee8a49b5a8f18159dc862b4f0bcfb0
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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 2716 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\77ee8a49b5a8f18159dc862b4f0bcfb0.exe LMS.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\77ee8a49b5a8f18159dc862b4f0bcfb0.exe LMS.exe -
Executes dropped EXE 1 IoCs
pid Process 2804 LMS.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\77ee8a49b5a8f18159dc862b4f0bcfb0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\LMS.exe\" .." LMS.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\77ee8a49b5a8f18159dc862b4f0bcfb0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\LMS.exe\" .." LMS.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 14 IoCs
description pid Process Token: SeDebugPrivilege 2052 af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe Token: SeDebugPrivilege 2804 LMS.exe Token: 33 2804 LMS.exe Token: SeIncBasePriorityPrivilege 2804 LMS.exe Token: 33 2804 LMS.exe Token: SeIncBasePriorityPrivilege 2804 LMS.exe Token: 33 2804 LMS.exe Token: SeIncBasePriorityPrivilege 2804 LMS.exe Token: 33 2804 LMS.exe Token: SeIncBasePriorityPrivilege 2804 LMS.exe Token: 33 2804 LMS.exe Token: SeIncBasePriorityPrivilege 2804 LMS.exe Token: 33 2804 LMS.exe Token: SeIncBasePriorityPrivilege 2804 LMS.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2052 wrote to memory of 2804 2052 af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe 31 PID 2052 wrote to memory of 2804 2052 af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe 31 PID 2052 wrote to memory of 2804 2052 af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe 31 PID 2804 wrote to memory of 2716 2804 LMS.exe 32 PID 2804 wrote to memory of 2716 2804 LMS.exe 32 PID 2804 wrote to memory of 2716 2804 LMS.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe"C:\Users\Admin\AppData\Local\Temp\af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052 -
C:\Users\Admin\AppData\Roaming\LMS.exe"C:\Users\Admin\AppData\Roaming\LMS.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Windows\system32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\LMS.exe" "LMS.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:2716
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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
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Downloads
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Filesize
102KB
MD524195853ff2e9a4d421d1c77cc86c5b1
SHA1c00af4632d37f2a4d5198eff0bb08f5d7478632f
SHA256af5283158b38b61c96c3e50aac904c0b202df9b651cbdadfd8dd3d55e1bde94e
SHA512dedeb06f18c6306fc069e9e722e037606aa39200c1196bff20ce894ab4b12ca70367e7f7cd66d91a9353c8844ac774965f1d676c5e0f15945a7e4c2783bc8380