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Analysis
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max time kernel
163s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
11/11/2023, 10:14
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe
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Size
1.8MB
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MD5
51e2b3a5796a75f5c4644a27a4671d33
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SHA1
c6802add2703df2865ec891358f02a420e7b5a57
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SHA256
83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3
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SHA512
592c8e646aaf2c78da3f276e8c055478879532810d6076beb8606bc6ad0abbb512d19d63ab4cd0f77547ff54913ef19cdd6ecf251a4c11131be05fc7a70df02a
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SSDEEP
49152:ZbCjPKNqQpcAmVfq4UbCjPKNqQpcAmVfq42bCjn:hCjPKNPZmVfjsCjPKNPZmVfjiCjn
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 1 TTPs 1 IoCs
pid Process 3436 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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 4760 winmgr107.exe 4484 winmgr107.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe" NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe" winmgr107.exe -
AutoIT Executable 5 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/files/0x000e000000022cdd-7.dat autoit_exe behavioral2/files/0x000e000000022cdd-8.dat autoit_exe behavioral2/files/0x0006000000022cc6-10.dat autoit_exe behavioral2/files/0x000e000000022cdd-19.dat autoit_exe behavioral2/files/0x000e000000022cdd-20.dat autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4760 set thread context of 3312 4760 winmgr107.exe 106 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 15 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1028 schtasks.exe 2036 schtasks.exe 1600 schtasks.exe 4380 schtasks.exe 3900 schtasks.exe 4544 schtasks.exe 780 schtasks.exe 4104 schtasks.exe 3628 schtasks.exe 4608 schtasks.exe 3952 schtasks.exe 4272 schtasks.exe 4796 schtasks.exe 4092 schtasks.exe 2780 schtasks.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000_Classes\Local Settings cmd.exe -
NTFS ADS 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe:Zone.Identifier:$DATA NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe File created C:\ProgramData\winmgr107.exe:Zone.Identifier:$DATA winmgr107.exe File opened for modification C:\ProgramData\winmgr107.exe:Zone.Identifier:$DATA winmgr107.exe -
Suspicious behavior: EnumeratesProcesses 36 IoCs
pid Process 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4484 winmgr107.exe 4484 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe 4760 winmgr107.exe -
Suspicious use of WriteProcessMemory 62 IoCs
description pid Process procid_target PID 3504 wrote to memory of 3096 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 97 PID 3504 wrote to memory of 3096 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 97 PID 3504 wrote to memory of 3096 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 97 PID 3504 wrote to memory of 4760 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 99 PID 3504 wrote to memory of 4760 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 99 PID 3504 wrote to memory of 4760 3504 NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe 99 PID 4760 wrote to memory of 3312 4760 winmgr107.exe 106 PID 4760 wrote to memory of 3312 4760 winmgr107.exe 106 PID 4760 wrote to memory of 3312 4760 winmgr107.exe 106 PID 4760 wrote to memory of 3312 4760 winmgr107.exe 106 PID 4760 wrote to memory of 3312 4760 winmgr107.exe 106 PID 4760 wrote to memory of 4608 4760 winmgr107.exe 107 PID 4760 wrote to memory of 4608 4760 winmgr107.exe 107 PID 4760 wrote to memory of 4608 4760 winmgr107.exe 107 PID 4760 wrote to memory of 4092 4760 winmgr107.exe 109 PID 4760 wrote to memory of 4092 4760 winmgr107.exe 109 PID 4760 wrote to memory of 4092 4760 winmgr107.exe 109 PID 3096 wrote to memory of 4436 3096 cmd.exe 111 PID 3096 wrote to memory of 4436 3096 cmd.exe 111 PID 3096 wrote to memory of 4436 3096 cmd.exe 111 PID 4760 wrote to memory of 2780 4760 winmgr107.exe 112 PID 4760 wrote to memory of 2780 4760 winmgr107.exe 112 PID 4760 wrote to memory of 2780 4760 winmgr107.exe 112 PID 4760 wrote to memory of 3952 4760 winmgr107.exe 114 PID 4760 wrote to memory of 3952 4760 winmgr107.exe 114 PID 4760 wrote to memory of 3952 4760 winmgr107.exe 114 PID 4760 wrote to memory of 780 4760 winmgr107.exe 117 PID 4760 wrote to memory of 780 4760 winmgr107.exe 117 PID 4760 wrote to memory of 780 4760 winmgr107.exe 117 PID 4760 wrote to memory of 3628 4760 winmgr107.exe 120 PID 4760 wrote to memory of 3628 4760 winmgr107.exe 120 PID 4760 wrote to memory of 3628 4760 winmgr107.exe 120 PID 4760 wrote to memory of 1600 4760 winmgr107.exe 122 PID 4760 wrote to memory of 1600 4760 winmgr107.exe 122 PID 4760 wrote to memory of 1600 4760 winmgr107.exe 122 PID 4760 wrote to memory of 4272 4760 winmgr107.exe 124 PID 4760 wrote to memory of 4272 4760 winmgr107.exe 124 PID 4760 wrote to memory of 4272 4760 winmgr107.exe 124 PID 4760 wrote to memory of 4104 4760 winmgr107.exe 126 PID 4760 wrote to memory of 4104 4760 winmgr107.exe 126 PID 4760 wrote to memory of 4104 4760 winmgr107.exe 126 PID 4760 wrote to memory of 4380 4760 winmgr107.exe 128 PID 4760 wrote to memory of 4380 4760 winmgr107.exe 128 PID 4760 wrote to memory of 4380 4760 winmgr107.exe 128 PID 3312 wrote to memory of 3436 3312 RegAsm.exe 130 PID 3312 wrote to memory of 3436 3312 RegAsm.exe 130 PID 3312 wrote to memory of 3436 3312 RegAsm.exe 130 PID 4760 wrote to memory of 3900 4760 winmgr107.exe 132 PID 4760 wrote to memory of 3900 4760 winmgr107.exe 132 PID 4760 wrote to memory of 3900 4760 winmgr107.exe 132 PID 4760 wrote to memory of 1028 4760 winmgr107.exe 134 PID 4760 wrote to memory of 1028 4760 winmgr107.exe 134 PID 4760 wrote to memory of 1028 4760 winmgr107.exe 134 PID 4760 wrote to memory of 2036 4760 winmgr107.exe 136 PID 4760 wrote to memory of 2036 4760 winmgr107.exe 136 PID 4760 wrote to memory of 2036 4760 winmgr107.exe 136 PID 4760 wrote to memory of 4796 4760 winmgr107.exe 138 PID 4760 wrote to memory of 4796 4760 winmgr107.exe 138 PID 4760 wrote to memory of 4796 4760 winmgr107.exe 138 PID 4760 wrote to memory of 4544 4760 winmgr107.exe 140 PID 4760 wrote to memory of 4544 4760 winmgr107.exe 140 PID 4760 wrote to memory of 4544 4760 winmgr107.exe 140
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe"1⤵
- Adds Run key to start application
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3504 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c start C:\PROGRA~3\NEAS83~1.TXT2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe.txt3⤵PID:4436
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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:4760 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe03⤵
- Suspicious use of WriteProcessMemory
PID:3312 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE4⤵
- Modifies Windows Firewall
PID:3436
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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⤵
- Creates scheduled task(s)
PID:4608
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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⤵
- Creates scheduled task(s)
PID:4092
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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⤵
- Creates scheduled task(s)
PID:2780
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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⤵
- Creates scheduled task(s)
PID:3952
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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⤵
- Creates scheduled task(s)
PID:780
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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⤵
- Creates scheduled task(s)
PID:3628
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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⤵
- Creates scheduled task(s)
PID:1600
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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⤵
- Creates scheduled task(s)
PID:4272
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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⤵
- Creates scheduled task(s)
PID:4104
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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⤵
- Creates scheduled task(s)
PID:4380
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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⤵
- Creates scheduled task(s)
PID:3900
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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⤵
- Creates scheduled task(s)
PID:1028
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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⤵
- Creates scheduled task(s)
PID:2036
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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⤵
- Creates scheduled task(s)
PID:4796
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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⤵
- Creates scheduled task(s)
PID:4544
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C:\ProgramData\winmgr107.exeC:\ProgramData\winmgr107.exe1⤵
- Executes dropped EXE
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
PID:4484
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
992B
MD5c8cf7247d4cfc99a7582a42d13df4c08
SHA1317f5588af0b3b6374c436fb00084c522fd78a83
SHA25678bd99781e971622f1573bccf2ae9cdd7a7498cf81c1875afc65913e1083b1d0
SHA5125dd86b7ba388e5d2ad61b1c69589f42c36eec23a04b3cece0941133e0cf0e8a6f1f3aa2242d87af72db725b4b96032dadae72b3be98af3cfce5786ad8c08c357
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Filesize
1.8MB
MD56a634919ba02d2637cd74103c0759046
SHA196527a2abfcb82f4215dfa95a8a094448924ce97
SHA256d554ea697a1d2878a38ba595fd0a533ad3caa9237842b0292f408e65deb4f6ec
SHA512ced8a02352df20f162573412c706589e7d3287b551f58fb5deac47d07ccdea5231a5e24c040c225df5cbe4ffd341055a5164332002bb89b12d52f03e1b9fc435
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Filesize
1.8MB
MD56a634919ba02d2637cd74103c0759046
SHA196527a2abfcb82f4215dfa95a8a094448924ce97
SHA256d554ea697a1d2878a38ba595fd0a533ad3caa9237842b0292f408e65deb4f6ec
SHA512ced8a02352df20f162573412c706589e7d3287b551f58fb5deac47d07ccdea5231a5e24c040c225df5cbe4ffd341055a5164332002bb89b12d52f03e1b9fc435
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Filesize
1.8MB
MD56a634919ba02d2637cd74103c0759046
SHA196527a2abfcb82f4215dfa95a8a094448924ce97
SHA256d554ea697a1d2878a38ba595fd0a533ad3caa9237842b0292f408e65deb4f6ec
SHA512ced8a02352df20f162573412c706589e7d3287b551f58fb5deac47d07ccdea5231a5e24c040c225df5cbe4ffd341055a5164332002bb89b12d52f03e1b9fc435
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Filesize
1.8MB
MD56a634919ba02d2637cd74103c0759046
SHA196527a2abfcb82f4215dfa95a8a094448924ce97
SHA256d554ea697a1d2878a38ba595fd0a533ad3caa9237842b0292f408e65deb4f6ec
SHA512ced8a02352df20f162573412c706589e7d3287b551f58fb5deac47d07ccdea5231a5e24c040c225df5cbe4ffd341055a5164332002bb89b12d52f03e1b9fc435
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C:\Users\Admin\AppData\Local\Temp\NEAS.83fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3.exe
Filesize1.8MB
MD551e2b3a5796a75f5c4644a27a4671d33
SHA1c6802add2703df2865ec891358f02a420e7b5a57
SHA25683fa082a1aea507b9c3e130c4308a7ac8c11a831aca1bac8cd8bf4ebc264bce3
SHA512592c8e646aaf2c78da3f276e8c055478879532810d6076beb8606bc6ad0abbb512d19d63ab4cd0f77547ff54913ef19cdd6ecf251a4c11131be05fc7a70df02a