Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
20-07-2024 02:44
Static task
static1
Behavioral task
behavioral1
Sample
3da8c86e51c566e6a12dc2bfb4fecf20N.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
3da8c86e51c566e6a12dc2bfb4fecf20N.exe
Resource
win10v2004-20240709-en
General
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Target
3da8c86e51c566e6a12dc2bfb4fecf20N.exe
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Size
8.7MB
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MD5
3da8c86e51c566e6a12dc2bfb4fecf20
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SHA1
94e30bc0be5b356a2ff834b7b815dd947130827d
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SHA256
eace25bcb4fa221cd5ae40fe1ecafe9e2e3ab5439c5a80555a6b874f3a786abe
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SHA512
b322bcdf0376767564ee6e0c4b553a4ece2f07214a692c6cb498eb8002f337a5b6a8d724cca24f51e899c05a8acdb2fe2344806733ebca5efb283815c4e2ff88
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SSDEEP
196608:hCbGPZmVfjsCbGPZmVfjiCbGPZmVfjsCbGPZmVfj2CbGPZmVfjsCbGPZmVfjiCbY:0GmVNGmVrGmVNGmVnGmVNGmVrGmVNGm0
Malware Config
Extracted
njrat
0.7d
jjj
youri.mooo.com:1605
e936a10f968ac948cd351c9629dbd36d
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reg_key
e936a10f968ac948cd351c9629dbd36d
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2540 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1216 winmgr107.exe 2476 winmgr107.exe -
Loads dropped DLL 1 IoCs
pid Process 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe" 3da8c86e51c566e6a12dc2bfb4fecf20N.exe Set value (str) \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe" winmgr107.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/files/0x000a0000000122cd-18.dat autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1216 set thread context of 2644 1216 winmgr107.exe 35 -
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 -
NTFS ADS 3 IoCs
description ioc Process File opened for modification C:\ProgramData\winmgr107.exe:Zone.Identifier:$DATA winmgr107.exe File created C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe:Zone.Identifier:$DATA 3da8c86e51c566e6a12dc2bfb4fecf20N.exe File created C:\ProgramData\winmgr107.exe:Zone.Identifier:$DATA winmgr107.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 21 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2700 schtasks.exe 1852 schtasks.exe 3048 schtasks.exe 2864 schtasks.exe 2740 schtasks.exe 2924 schtasks.exe 1664 schtasks.exe 1564 schtasks.exe 380 schtasks.exe 1636 schtasks.exe 1428 schtasks.exe 1788 schtasks.exe 1456 schtasks.exe 2252 schtasks.exe 2040 schtasks.exe 1268 schtasks.exe 560 schtasks.exe 2568 schtasks.exe 2904 schtasks.exe 892 schtasks.exe 1904 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 24 IoCs
pid Process 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 2476 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe 1216 winmgr107.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
description pid Process Token: SeDebugPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe Token: 33 2644 RegAsm.exe Token: SeIncBasePriorityPrivilege 2644 RegAsm.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1948 wrote to memory of 2436 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 31 PID 1948 wrote to memory of 2436 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 31 PID 1948 wrote to memory of 2436 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 31 PID 1948 wrote to memory of 2436 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 31 PID 2436 wrote to memory of 540 2436 cmd.exe 33 PID 2436 wrote to memory of 540 2436 cmd.exe 33 PID 2436 wrote to memory of 540 2436 cmd.exe 33 PID 2436 wrote to memory of 540 2436 cmd.exe 33 PID 1948 wrote to memory of 1216 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 34 PID 1948 wrote to memory of 1216 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 34 PID 1948 wrote to memory of 1216 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 34 PID 1948 wrote to memory of 1216 1948 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 34 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2644 1216 winmgr107.exe 35 PID 1216 wrote to memory of 2740 1216 winmgr107.exe 36 PID 1216 wrote to memory of 2740 1216 winmgr107.exe 36 PID 1216 wrote to memory of 2740 1216 winmgr107.exe 36 PID 1216 wrote to memory of 2740 1216 winmgr107.exe 36 PID 1216 wrote to memory of 2924 1216 winmgr107.exe 38 PID 1216 wrote to memory of 2924 1216 winmgr107.exe 38 PID 1216 wrote to memory of 2924 1216 winmgr107.exe 38 PID 1216 wrote to memory of 2924 1216 winmgr107.exe 38 PID 2644 wrote to memory of 2540 2644 RegAsm.exe 40 PID 2644 wrote to memory of 2540 2644 RegAsm.exe 40 PID 2644 wrote to memory of 2540 2644 RegAsm.exe 40 PID 2644 wrote to memory of 2540 2644 RegAsm.exe 40 PID 1216 wrote to memory of 2568 1216 winmgr107.exe 42 PID 1216 wrote to memory of 2568 1216 winmgr107.exe 42 PID 1216 wrote to memory of 2568 1216 winmgr107.exe 42 PID 1216 wrote to memory of 2568 1216 winmgr107.exe 42 PID 1216 wrote to memory of 2252 1216 winmgr107.exe 44 PID 1216 wrote to memory of 2252 1216 winmgr107.exe 44 PID 1216 wrote to memory of 2252 1216 winmgr107.exe 44 PID 1216 wrote to memory of 2252 1216 winmgr107.exe 44 PID 1216 wrote to memory of 1664 1216 winmgr107.exe 46 PID 1216 wrote to memory of 1664 1216 winmgr107.exe 46 PID 1216 wrote to memory of 1664 1216 winmgr107.exe 46 PID 1216 wrote to memory of 1664 1216 winmgr107.exe 46 PID 1216 wrote to memory of 1564 1216 winmgr107.exe 48 PID 1216 wrote to memory of 1564 1216 winmgr107.exe 48 PID 1216 wrote to memory of 1564 1216 winmgr107.exe 48 PID 1216 wrote to memory of 1564 1216 winmgr107.exe 48 PID 1216 wrote to memory of 2700 1216 winmgr107.exe 50 PID 1216 wrote to memory of 2700 1216 winmgr107.exe 50 PID 1216 wrote to memory of 2700 1216 winmgr107.exe 50 PID 1216 wrote to memory of 2700 1216 winmgr107.exe 50 PID 1216 wrote to memory of 1852 1216 winmgr107.exe 52 PID 1216 wrote to memory of 1852 1216 winmgr107.exe 52 PID 1216 wrote to memory of 1852 1216 winmgr107.exe 52 PID 1216 wrote to memory of 1852 1216 winmgr107.exe 52 PID 1216 wrote to memory of 1428 1216 winmgr107.exe 54 PID 1216 wrote to memory of 1428 1216 winmgr107.exe 54 PID 1216 wrote to memory of 1428 1216 winmgr107.exe 54 PID 1216 wrote to memory of 1428 1216 winmgr107.exe 54 PID 1216 wrote to memory of 2904 1216 winmgr107.exe 56 PID 1216 wrote to memory of 2904 1216 winmgr107.exe 56 PID 1216 wrote to memory of 2904 1216 winmgr107.exe 56
Processes
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C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe"C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c start C:\PROGRA~3\3DA8C8~1.TXT2⤵
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\3da8c86e51c566e6a12dc2bfb4fecf20N.exe.txt3⤵PID:540
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C:\ProgramData\winmgr107.exeC:\ProgramData\winmgr107.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe03⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2644 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:2540
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2740
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2924
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2568
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2252
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1664
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1564
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2700
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1852
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1428
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2904
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:3048
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2040
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2864
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1788
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1268
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:892
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1904
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1456
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:380
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:1636
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C:\Windows\SysWOW64\schtasks.exeC:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:560
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C:\Windows\system32\taskeng.exetaskeng.exe {FF4344C4-87F3-49FC-AF9E-306938ECB93D} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]1⤵PID:2404
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C:\ProgramData\winmgr107.exeC:\ProgramData\winmgr107.exe2⤵
- Executes dropped EXE
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
PID:2476
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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
1Scheduled Task/Job
1Scheduled Task
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
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
992B
MD5c8cf7247d4cfc99a7582a42d13df4c08
SHA1317f5588af0b3b6374c436fb00084c522fd78a83
SHA25678bd99781e971622f1573bccf2ae9cdd7a7498cf81c1875afc65913e1083b1d0
SHA5125dd86b7ba388e5d2ad61b1c69589f42c36eec23a04b3cece0941133e0cf0e8a6f1f3aa2242d87af72db725b4b96032dadae72b3be98af3cfce5786ad8c08c357
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Filesize
8.7MB
MD5ffa6c4e8a0091ee63585c2d9d97707c0
SHA1ee3288d12dbccb706a4eb169e9819c54907e01b3
SHA2562757c93ca244c1f9e3e15892171aea57c0b780a30a38005f8bd10a3fdc6132f5
SHA512b229398fee52fe835e11aae3732617583dfe3ce83ca180850c76e8775366b0ef500bce5d05dab5b55543e34ef5668ebea7f1603a8d8124ccdc4fef92a14d14ba