Analysis
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max time kernel
149s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
03-11-2024 14:21
Static task
static1
Behavioral task
behavioral1
Sample
3dbe30b615ca39afbc28c4e00fb5941d.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3dbe30b615ca39afbc28c4e00fb5941d.exe
Resource
win10v2004-20241007-en
General
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Target
3dbe30b615ca39afbc28c4e00fb5941d.exe
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Size
489KB
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MD5
3dbe30b615ca39afbc28c4e00fb5941d
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SHA1
199f664cf6d92a172c2e2d8cbfcd71f2884f2906
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SHA256
66a1743f5791c9746a988bb1e5c250f25941a3122430be24380d9a9cb3484961
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SHA512
2fd60508dfbe0942363bdd1183df0e2c43d628af036462d9ab648bce15209ef39061e64b162174b500fb5c79a3dcb07a6098bb365c9eea76dcd4fb0ab62110e8
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SSDEEP
12288:tar1ua/gY5dCTiJ5njy4NR/9M4OZp75vl07sOxc:ohn5QyNykI4AVly7
Malware Config
Extracted
njrat
0.7d
VIP@DUMP
volkatv500.sytes.net:999
e0bb29bc288c4cac846ed6aff410e0c6
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reg_key
e0bb29bc288c4cac846ed6aff410e0c6
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splitter
|'|'|
Signatures
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Njrat family
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2560 netsh.exe -
Drops startup file 2 IoCs
Processes:
winhelp.batdescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0bb29bc288c4cac846ed6aff410e0c6.exe winhelp.bat File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0bb29bc288c4cac846ed6aff410e0c6.exe winhelp.bat -
Executes dropped EXE 1 IoCs
Processes:
winhelp.batpid process 1272 winhelp.bat -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
winhelp.batdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\e0bb29bc288c4cac846ed6aff410e0c6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\winhelp.bat\" .." winhelp.bat Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e0bb29bc288c4cac846ed6aff410e0c6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\winhelp.bat\" .." winhelp.bat -
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.
Processes:
netsh.exedescription ioc process Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
Suspicious use of AdjustPrivilegeToken 33 IoCs
Processes:
winhelp.batdescription pid process Token: SeDebugPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat Token: 33 1272 winhelp.bat Token: SeIncBasePriorityPrivilege 1272 winhelp.bat -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
3dbe30b615ca39afbc28c4e00fb5941d.exewinhelp.batdescription pid process target process PID 2884 wrote to memory of 1272 2884 3dbe30b615ca39afbc28c4e00fb5941d.exe winhelp.bat PID 2884 wrote to memory of 1272 2884 3dbe30b615ca39afbc28c4e00fb5941d.exe winhelp.bat PID 2884 wrote to memory of 1272 2884 3dbe30b615ca39afbc28c4e00fb5941d.exe winhelp.bat PID 1272 wrote to memory of 2560 1272 winhelp.bat netsh.exe PID 1272 wrote to memory of 2560 1272 winhelp.bat netsh.exe PID 1272 wrote to memory of 2560 1272 winhelp.bat netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3dbe30b615ca39afbc28c4e00fb5941d.exe"C:\Users\Admin\AppData\Local\Temp\3dbe30b615ca39afbc28c4e00fb5941d.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2884 -
C:\Users\Admin\AppData\Roaming\winhelp.bat"C:\Users\Admin\AppData\Roaming\winhelp.bat"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\system32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\winhelp.bat" "winhelp.bat" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:2560
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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
489KB
MD53dbe30b615ca39afbc28c4e00fb5941d
SHA1199f664cf6d92a172c2e2d8cbfcd71f2884f2906
SHA25666a1743f5791c9746a988bb1e5c250f25941a3122430be24380d9a9cb3484961
SHA5122fd60508dfbe0942363bdd1183df0e2c43d628af036462d9ab648bce15209ef39061e64b162174b500fb5c79a3dcb07a6098bb365c9eea76dcd4fb0ab62110e8