Analysis
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max time kernel
151s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
20-07-2022 01:24
Static task
static1
Behavioral task
behavioral1
Sample
d445e2e0b050ee7127cbe72fe13ee2b4.dll
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
d445e2e0b050ee7127cbe72fe13ee2b4.dll
Resource
win10v2004-20220718-en
General
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Target
d445e2e0b050ee7127cbe72fe13ee2b4.dll
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Size
5.0MB
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MD5
d445e2e0b050ee7127cbe72fe13ee2b4
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SHA1
a34d7fd1d1de115fedfeede6baa9d9867dc3e78b
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SHA256
acc83239318190f2b7840cc4578c0afcdd0e379e9d2b68640a53a1b1238ff61b
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SHA512
31d6185986c21a46612a8413c645461a7a5f18066f84d071cd11ac31be7400b69933982681ef99742d5d6ec489c69e142db26d6d8b8517d853fb5f05f74b31d6
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (1272) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 3 IoCs
Processes:
mssecsvc.exemssecsvc.exetasksche.exepid process 1064 mssecsvc.exe 1788 mssecsvc.exe 1768 tasksche.exe -
Drops file in System32 directory 1 IoCs
Processes:
mssecsvc.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat mssecsvc.exe -
Drops file in Windows directory 2 IoCs
Processes:
rundll32.exemssecsvc.exedescription ioc process File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe -
Modifies data under HKEY_USERS 24 IoCs
Processes:
mssecsvc.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{321F1F0A-C535-4AD1-AD21-6DC950B22C9C}\WpadDecisionTime = 403a5932e89bd801 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bf-5b-da-1c-db mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bf-5b-da-1c-db\WpadDecisionTime = 403a5932e89bd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bf-5b-da-1c-db\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{321F1F0A-C535-4AD1-AD21-6DC950B22C9C}\WpadNetworkName = "Network 2" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{321F1F0A-C535-4AD1-AD21-6DC950B22C9C}\WpadDecision = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bf-5b-da-1c-db\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{321F1F0A-C535-4AD1-AD21-6DC950B22C9C} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{321F1F0A-C535-4AD1-AD21-6DC950B22C9C}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{321F1F0A-C535-4AD1-AD21-6DC950B22C9C}\8e-bf-5b-da-1c-db mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 1536 1636 rundll32.exe rundll32.exe PID 1536 wrote to memory of 1064 1536 rundll32.exe mssecsvc.exe PID 1536 wrote to memory of 1064 1536 rundll32.exe mssecsvc.exe PID 1536 wrote to memory of 1064 1536 rundll32.exe mssecsvc.exe PID 1536 wrote to memory of 1064 1536 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\d445e2e0b050ee7127cbe72fe13ee2b4.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\d445e2e0b050ee7127cbe72fe13ee2b4.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1536 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1064 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1768
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1788
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\WINDOWS\mssecsvc.exeFilesize
3.6MB
MD5cf11f914efc5f6d096d58badf9d72915
SHA18ab39ed37e8291070a9cf5c3e4ea0bde0828ef9d
SHA25669e6d253f9a00dbeebfea92c0bdbc9e53bf2f878cd4a4f142f9e935eb9eed7b7
SHA512d013bfd13206de40912083e96e8702e963e5711188d9d9cf22546421bb57646184a75d20b1f0125cd6a6b41b420f3dd4df29066fdd4fe1650c2e470b6988c4e9
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5cf11f914efc5f6d096d58badf9d72915
SHA18ab39ed37e8291070a9cf5c3e4ea0bde0828ef9d
SHA25669e6d253f9a00dbeebfea92c0bdbc9e53bf2f878cd4a4f142f9e935eb9eed7b7
SHA512d013bfd13206de40912083e96e8702e963e5711188d9d9cf22546421bb57646184a75d20b1f0125cd6a6b41b420f3dd4df29066fdd4fe1650c2e470b6988c4e9
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5cf11f914efc5f6d096d58badf9d72915
SHA18ab39ed37e8291070a9cf5c3e4ea0bde0828ef9d
SHA25669e6d253f9a00dbeebfea92c0bdbc9e53bf2f878cd4a4f142f9e935eb9eed7b7
SHA512d013bfd13206de40912083e96e8702e963e5711188d9d9cf22546421bb57646184a75d20b1f0125cd6a6b41b420f3dd4df29066fdd4fe1650c2e470b6988c4e9
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C:\Windows\tasksche.exeFilesize
3.4MB
MD57bffd6dfd8e5c5fe55577df5d87559e5
SHA13536b3d1fa74db8619e305ff4bc772ea82d53c0f
SHA256c5d0817617551bf5bae966e0c95ad66a1f536633b44b0eeb09ae3ee33ac67980
SHA512af153f93af0a80b2ab351eced1063d164f9c43ad5f604ddae41b738a03bf1e12b723c312905165725894b9e1d4d38841b48123d995371eaab33fd9574047e77e
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memory/1064-56-0x0000000000000000-mapping.dmp
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memory/1064-61-0x0000000000400000-0x0000000000A73000-memory.dmpFilesize
6.4MB
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memory/1064-65-0x0000000000400000-0x0000000000A73000-memory.dmpFilesize
6.4MB
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memory/1536-54-0x0000000000000000-mapping.dmp
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memory/1536-55-0x00000000749D1000-0x00000000749D3000-memory.dmpFilesize
8KB
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memory/1788-62-0x0000000000400000-0x0000000000A73000-memory.dmpFilesize
6.4MB
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memory/1788-66-0x0000000000400000-0x0000000000A73000-memory.dmpFilesize
6.4MB