Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220718-en -
resource tags
arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system -
submitted
20-07-2022 03:08
Static task
static1
Behavioral task
behavioral1
Sample
aed2448b720eaef9a18214be5e38f5b7.dll
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
aed2448b720eaef9a18214be5e38f5b7.dll
Resource
win10v2004-20220718-en
General
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Target
aed2448b720eaef9a18214be5e38f5b7.dll
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Size
5.0MB
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MD5
aed2448b720eaef9a18214be5e38f5b7
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SHA1
431d66642b25c362986a7481ea1f07fed116d8ad
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SHA256
d9f7a9a558f3b997afc527bb78d4520bcdf6cf67875830e818701953c1bf8853
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SHA512
f73098c68a694d566aded136e575bdb16abdeb3dd2435ab25039b7b8200de7d4c323dc1afbd74534df9f3e08fc2cdaf71b377f95026205ef20b45b2a1e7a9009
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3325) 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 4916 mssecsvc.exe 3972 mssecsvc.exe 4288 tasksche.exe -
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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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 5 IoCs
Processes:
mssecsvc.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 4880 wrote to memory of 2700 4880 rundll32.exe rundll32.exe PID 4880 wrote to memory of 2700 4880 rundll32.exe rundll32.exe PID 4880 wrote to memory of 2700 4880 rundll32.exe rundll32.exe PID 2700 wrote to memory of 4916 2700 rundll32.exe mssecsvc.exe PID 2700 wrote to memory of 4916 2700 rundll32.exe mssecsvc.exe PID 2700 wrote to memory of 4916 2700 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\aed2448b720eaef9a18214be5e38f5b7.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\aed2448b720eaef9a18214be5e38f5b7.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
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C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\WINDOWS\mssecsvc.exeFilesize
3.6MB
MD5832b7876d39b811503cb011100922bec
SHA1bf31acb85c77a10812e79fca3c56897063750797
SHA2562eba6f079e253d054fa3e93353bd563e43a1f0bec6dc8275b7edead8a086d753
SHA5126e9b9836116e98ce5c5df7220358bc91e9be833ff436d1a55839c824359f619bce16e9853c47114e131bda52896cc6a4bf49cd77443d8c669c999c08bbb8c225
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5832b7876d39b811503cb011100922bec
SHA1bf31acb85c77a10812e79fca3c56897063750797
SHA2562eba6f079e253d054fa3e93353bd563e43a1f0bec6dc8275b7edead8a086d753
SHA5126e9b9836116e98ce5c5df7220358bc91e9be833ff436d1a55839c824359f619bce16e9853c47114e131bda52896cc6a4bf49cd77443d8c669c999c08bbb8c225
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5832b7876d39b811503cb011100922bec
SHA1bf31acb85c77a10812e79fca3c56897063750797
SHA2562eba6f079e253d054fa3e93353bd563e43a1f0bec6dc8275b7edead8a086d753
SHA5126e9b9836116e98ce5c5df7220358bc91e9be833ff436d1a55839c824359f619bce16e9853c47114e131bda52896cc6a4bf49cd77443d8c669c999c08bbb8c225
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C:\Windows\tasksche.exeFilesize
3.4MB
MD5c04b4b25d60a28425119ec9ee7d3193c
SHA1b1e996512ec6799a10b2b5fc4fd67e9e40820941
SHA256a550bd2542fe4f4d26c8434dc0a28c89512e490cf4f4a04c330ee2a3c5fae13f
SHA512cfe93b91334eb1c67fb62b144894ec1840c4e094e983bae5b4036ba5c6f2e217ec3e8ef140ba45e26eec1f1510acc53f1c9665226d4b38acf76d56f392c668e0
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memory/2700-130-0x0000000000000000-mapping.dmp
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memory/4916-131-0x0000000000000000-mapping.dmp