Analysis
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max time kernel
120s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-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 2768 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 4192 winmgr107.exe 4868 winmgr107.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe" 3da8c86e51c566e6a12dc2bfb4fecf20N.exe Set value (str) \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe" winmgr107.exe -
AutoIT Executable 2 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/files/0x000800000002346d-9.dat autoit_exe behavioral2/files/0x000700000002345e-11.dat autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4192 set thread context of 3056 4192 winmgr107.exe 98 -
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 -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000_Classes\Local Settings cmd.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 19 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 452 schtasks.exe 1696 schtasks.exe 2572 schtasks.exe 1572 schtasks.exe 4816 schtasks.exe 2528 schtasks.exe 1516 schtasks.exe 3492 schtasks.exe 3784 schtasks.exe 2936 schtasks.exe 4068 schtasks.exe 2572 schtasks.exe 3476 schtasks.exe 1760 schtasks.exe 2980 schtasks.exe 3492 schtasks.exe 4720 schtasks.exe 1668 schtasks.exe 224 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 44 IoCs
pid Process 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4868 winmgr107.exe 4868 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe 4192 winmgr107.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeDebugPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe Token: 33 3056 RegAsm.exe Token: SeIncBasePriorityPrivilege 3056 RegAsm.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4968 wrote to memory of 5040 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 94 PID 4968 wrote to memory of 5040 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 94 PID 4968 wrote to memory of 5040 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 94 PID 5040 wrote to memory of 5032 5040 cmd.exe 96 PID 5040 wrote to memory of 5032 5040 cmd.exe 96 PID 5040 wrote to memory of 5032 5040 cmd.exe 96 PID 4968 wrote to memory of 4192 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 97 PID 4968 wrote to memory of 4192 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 97 PID 4968 wrote to memory of 4192 4968 3da8c86e51c566e6a12dc2bfb4fecf20N.exe 97 PID 4192 wrote to memory of 3056 4192 winmgr107.exe 98 PID 4192 wrote to memory of 3056 4192 winmgr107.exe 98 PID 4192 wrote to memory of 3056 4192 winmgr107.exe 98 PID 4192 wrote to memory of 3056 4192 winmgr107.exe 98 PID 4192 wrote to memory of 3056 4192 winmgr107.exe 98 PID 4192 wrote to memory of 3784 4192 winmgr107.exe 99 PID 4192 wrote to memory of 3784 4192 winmgr107.exe 99 PID 4192 wrote to memory of 3784 4192 winmgr107.exe 99 PID 4192 wrote to memory of 2936 4192 winmgr107.exe 102 PID 4192 wrote to memory of 2936 4192 winmgr107.exe 102 PID 4192 wrote to memory of 2936 4192 winmgr107.exe 102 PID 3056 wrote to memory of 2768 3056 RegAsm.exe 104 PID 3056 wrote to memory of 2768 3056 RegAsm.exe 104 PID 3056 wrote to memory of 2768 3056 RegAsm.exe 104 PID 4192 wrote to memory of 2572 4192 winmgr107.exe 108 PID 4192 wrote to memory of 2572 4192 winmgr107.exe 108 PID 4192 wrote to memory of 2572 4192 winmgr107.exe 108 PID 4192 wrote to memory of 4068 4192 winmgr107.exe 116 PID 4192 wrote to memory of 4068 4192 winmgr107.exe 116 PID 4192 wrote to memory of 4068 4192 winmgr107.exe 116 PID 4192 wrote to memory of 3492 4192 winmgr107.exe 118 PID 4192 wrote to memory of 3492 4192 winmgr107.exe 118 PID 4192 wrote to memory of 3492 4192 winmgr107.exe 118 PID 4192 wrote to memory of 4720 4192 winmgr107.exe 120 PID 4192 wrote to memory of 4720 4192 winmgr107.exe 120 PID 4192 wrote to memory of 4720 4192 winmgr107.exe 120 PID 4192 wrote to memory of 1668 4192 winmgr107.exe 122 PID 4192 wrote to memory of 1668 4192 winmgr107.exe 122 PID 4192 wrote to memory of 1668 4192 winmgr107.exe 122 PID 4192 wrote to memory of 2572 4192 winmgr107.exe 124 PID 4192 wrote to memory of 2572 4192 winmgr107.exe 124 PID 4192 wrote to memory of 2572 4192 winmgr107.exe 124 PID 4192 wrote to memory of 1572 4192 winmgr107.exe 126 PID 4192 wrote to memory of 1572 4192 winmgr107.exe 126 PID 4192 wrote to memory of 1572 4192 winmgr107.exe 126 PID 4192 wrote to memory of 4816 4192 winmgr107.exe 128 PID 4192 wrote to memory of 4816 4192 winmgr107.exe 128 PID 4192 wrote to memory of 4816 4192 winmgr107.exe 128 PID 4192 wrote to memory of 224 4192 winmgr107.exe 130 PID 4192 wrote to memory of 224 4192 winmgr107.exe 130 PID 4192 wrote to memory of 224 4192 winmgr107.exe 130 PID 4192 wrote to memory of 3476 4192 winmgr107.exe 134 PID 4192 wrote to memory of 3476 4192 winmgr107.exe 134 PID 4192 wrote to memory of 3476 4192 winmgr107.exe 134 PID 4192 wrote to memory of 2528 4192 winmgr107.exe 136 PID 4192 wrote to memory of 2528 4192 winmgr107.exe 136 PID 4192 wrote to memory of 2528 4192 winmgr107.exe 136 PID 4192 wrote to memory of 452 4192 winmgr107.exe 138 PID 4192 wrote to memory of 452 4192 winmgr107.exe 138 PID 4192 wrote to memory of 452 4192 winmgr107.exe 138 PID 4192 wrote to memory of 1516 4192 winmgr107.exe 140 PID 4192 wrote to memory of 1516 4192 winmgr107.exe 140 PID 4192 wrote to memory of 1516 4192 winmgr107.exe 140 PID 4192 wrote to memory of 1696 4192 winmgr107.exe 142 PID 4192 wrote to memory of 1696 4192 winmgr107.exe 142
Processes
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C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe"C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe"1⤵
- Adds Run key to start application
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4968 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c start C:\PROGRA~3\3DA8C8~1.TXT2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5040 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\3da8c86e51c566e6a12dc2bfb4fecf20N.exe.txt3⤵PID:5032
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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:4192 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe03⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056 -
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:2768
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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:3784
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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:2936
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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:2572
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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:4068
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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:3492
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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:4720
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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:1668
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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:2572
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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:1572
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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:4816
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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:224
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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:3476
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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:2528
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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:452
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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:1516
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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:1696
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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:3492
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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:1760
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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:2980
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C:\ProgramData\winmgr107.exeC:\ProgramData\winmgr107.exe1⤵
- Executes dropped EXE
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
PID:4868
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
MD5b665714344e88fd1809cbc64aecb0c48
SHA1c193a96a0e82fc4b556e2005a0f538bcf16ee18a
SHA2563955a8ef51bc84e5aa6b897d30598807597245c48ea6dec47c5ec248ad864885
SHA5121c623c88cb3b54f614f58f76b8bfdd5816da2a189688c3af74383416eaa3f8cf90caad75ca86d068e0cf9b117b2518253f74df26ccc002222dc2c0c78a04c44d
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Filesize
8.7MB
MD53da8c86e51c566e6a12dc2bfb4fecf20
SHA194e30bc0be5b356a2ff834b7b815dd947130827d
SHA256eace25bcb4fa221cd5ae40fe1ecafe9e2e3ab5439c5a80555a6b874f3a786abe
SHA512b322bcdf0376767564ee6e0c4b553a4ece2f07214a692c6cb498eb8002f337a5b6a8d724cca24f51e899c05a8acdb2fe2344806733ebca5efb283815c4e2ff88