Analysis
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max time kernel
188s -
max time network
193s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-06-2022 01:38
Static task
static1
Behavioral task
behavioral1
Sample
30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll
Resource
win10v2004-20220414-en
General
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Target
30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll
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Size
5.0MB
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MD5
4bbb8df5d25162f260e362c7dbce13ba
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SHA1
67e8415d133178158461b946d5ca0533e1015409
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SHA256
30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726
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SHA512
9ccf0cfa8078450a16fffd5c4a0fe79cb2cbe621b9ebf5224d3318d45602b3569ee8f470c882885cc049eab46ef61b5ecb09c7e6d7646d962eee917b7b043267
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
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suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
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Contacts a large (3092) 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 3500 mssecsvc.exe 4664 mssecsvc.exe 2768 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 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 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" mssecsvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 3060 wrote to memory of 5020 3060 rundll32.exe rundll32.exe PID 3060 wrote to memory of 5020 3060 rundll32.exe rundll32.exe PID 3060 wrote to memory of 5020 3060 rundll32.exe rundll32.exe PID 5020 wrote to memory of 3500 5020 rundll32.exe mssecsvc.exe PID 5020 wrote to memory of 3500 5020 rundll32.exe mssecsvc.exe PID 5020 wrote to memory of 3500 5020 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.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
MD5b4c209a4f8fabc592e4ead83b35be9e9
SHA1059c25d60037f22a4baf8bb880a2d9c4925d6aa2
SHA256e7095a47d3f3181c4afb16311f33c5d6e83dfbb5f7968702bc7ee2323995a1a0
SHA5121a1c26ff94b3d508b2c690d557456b865c9c7bab5f649c899f11cb7136c9afb1e959b7b9c5c0d2cec4f05a158a3a6fe11982f003d62020019edcd2beb9939878
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5b4c209a4f8fabc592e4ead83b35be9e9
SHA1059c25d60037f22a4baf8bb880a2d9c4925d6aa2
SHA256e7095a47d3f3181c4afb16311f33c5d6e83dfbb5f7968702bc7ee2323995a1a0
SHA5121a1c26ff94b3d508b2c690d557456b865c9c7bab5f649c899f11cb7136c9afb1e959b7b9c5c0d2cec4f05a158a3a6fe11982f003d62020019edcd2beb9939878
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5b4c209a4f8fabc592e4ead83b35be9e9
SHA1059c25d60037f22a4baf8bb880a2d9c4925d6aa2
SHA256e7095a47d3f3181c4afb16311f33c5d6e83dfbb5f7968702bc7ee2323995a1a0
SHA5121a1c26ff94b3d508b2c690d557456b865c9c7bab5f649c899f11cb7136c9afb1e959b7b9c5c0d2cec4f05a158a3a6fe11982f003d62020019edcd2beb9939878
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C:\Windows\tasksche.exeFilesize
3.4MB
MD5a91911fc8117f96a839732d915ec0713
SHA164d7ece080daada008fc447e1972fdffbad03220
SHA25614ca561629d21c811f309167d640c6dc2accd72b19c687c5b23449dd8c0fe5ac
SHA51243c54406f9199e23c3ae4e04b457c956aff3a6b96fc726c4ed17890bc0be900e7b836c56350a250570c7bc2272600ba2d2a400cb0dc379c7bdb3365dcfca779a
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memory/3500-131-0x0000000000000000-mapping.dmp
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memory/5020-130-0x0000000000000000-mapping.dmp