Analysis
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max time kernel
30s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
22/11/2023, 06:05
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
mssecsvr.exe
Resource
win7-20231020-en
windows7-x64
4 signatures
30 seconds
Behavioral task
behavioral2
Sample
mssecsvr.exe
Resource
win10v2004-20231025-en
windows10-2004-x64
4 signatures
30 seconds
General
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Target
mssecsvr.exe
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Size
2.2MB
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MD5
55929d228ed4b7663daf679c8b3106e1
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SHA1
0dd8f29d3137143e033efa3e4ddd7289ed0c2421
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SHA256
c453f10bb43cb8ef44226f74f705b50fef8271a6c3f10e1871b952bfaea02392
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SHA512
87e7b8f6e30007ca5dbfec9f0fad804d9f2bb733de87608fbebd0e0e6d5ddc1a515de89d3a0bb9a3a74d6115d661ce85a18d2d0cdf4d0e37d9aa9458b84f017e
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SSDEEP
12288:e1bLgmluCtgQbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D85SQeuB8T:QbLgurgDdmMSirYbcMNgef0Xk+8T
Score
10/10
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Drops file in System32 directory 5 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat mssecsvr.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\J435M1ZR.txt mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\J435M1ZR.txt mssecsvr.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\1AM36R5I.txt mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\1AM36R5I.txt mssecsvr.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\WINDOWS\tasksche.exe mssecsvr.exe -
Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B8BE2021-ABCE-4277-A8DE-5FCECD98FFA2}\WpadDecisionReason = "1" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B8BE2021-ABCE-4277-A8DE-5FCECD98FFA2}\WpadNetworkName = "Network 3" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B8BE2021-ABCE-4277-A8DE-5FCECD98FFA2}\ce-2d-b8-e1-7f-a2 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2d-b8-e1-7f-a2\WpadDecisionReason = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2d-b8-e1-7f-a2\WpadDecision = "0" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B8BE2021-ABCE-4277-A8DE-5FCECD98FFA2}\WpadDecisionTime = 2054bd160a1dda01 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2d-b8-e1-7f-a2 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B8BE2021-ABCE-4277-A8DE-5FCECD98FFA2} mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B8BE2021-ABCE-4277-A8DE-5FCECD98FFA2}\WpadDecision = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2d-b8-e1-7f-a2\WpadDecisionTime = 2054bd160a1dda01 mssecsvr.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\mssecsvr.exe"C:\Users\Admin\AppData\Local\Temp\mssecsvr.exe"1⤵
- Drops file in Windows directory
PID:2536
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C:\Users\Admin\AppData\Local\Temp\mssecsvr.exeC:\Users\Admin\AppData\Local\Temp\mssecsvr.exe -m security1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2816