Analysis
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max time kernel
177s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-06-2022 04:36
Static task
static1
Behavioral task
behavioral1
Sample
32e43652533f32ad08ba96a0a896c05ce865c01880641ff21008a61169a50038.dll
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
32e43652533f32ad08ba96a0a896c05ce865c01880641ff21008a61169a50038.dll
Resource
win10v2004-20220414-en
General
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Target
32e43652533f32ad08ba96a0a896c05ce865c01880641ff21008a61169a50038.dll
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Size
5.0MB
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MD5
64c3e9f584a0b0fdfaf114c3c78273d9
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SHA1
df7a6be71e6eba5d703bb1f226feb4012b2bf432
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SHA256
32e43652533f32ad08ba96a0a896c05ce865c01880641ff21008a61169a50038
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SHA512
f899df01222018f14e7575954c271d4c7120d11b23e2314d59ec5ae9793c60634a66309777449fc084f3d8d5586790f659a509fcedf4a503391527789fed0576
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3077) 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:
mssecsvr.exemssecsvr.exetasksche.exepid process 2216 mssecsvr.exe 2700 mssecsvr.exe 2880 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 4 IoCs
Processes:
tasksche.exerundll32.exemssecsvr.exedescription ioc process File created C:\Windows\__tmp_rar_sfx_access_check_240579015 tasksche.exe File created C:\Windows\eee.exe tasksche.exe File created C:\WINDOWS\mssecsvr.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvr.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
mssecsvr.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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\ProxyBypass = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvr.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
rundll32.exerundll32.exemssecsvr.exedescription pid process target process PID 2832 wrote to memory of 2344 2832 rundll32.exe rundll32.exe PID 2832 wrote to memory of 2344 2832 rundll32.exe rundll32.exe PID 2832 wrote to memory of 2344 2832 rundll32.exe rundll32.exe PID 2344 wrote to memory of 2216 2344 rundll32.exe mssecsvr.exe PID 2344 wrote to memory of 2216 2344 rundll32.exe mssecsvr.exe PID 2344 wrote to memory of 2216 2344 rundll32.exe mssecsvr.exe PID 2216 wrote to memory of 2880 2216 mssecsvr.exe tasksche.exe PID 2216 wrote to memory of 2880 2216 mssecsvr.exe tasksche.exe PID 2216 wrote to memory of 2880 2216 mssecsvr.exe tasksche.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\32e43652533f32ad08ba96a0a896c05ce865c01880641ff21008a61169a50038.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\32e43652533f32ad08ba96a0a896c05ce865c01880641ff21008a61169a50038.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
- Drops file in Windows directory
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.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\mssecsvr.exeFilesize
2.2MB
MD5582a6a9581116c1b670aa804ef41d1d8
SHA146bd1026ac63d9b22d6dd8935f23cb2eb8057ed2
SHA256c1500978e57d8b886e4bd0782b8679045bef80537ca993fc76ce81103c7f0beb
SHA512600f4ef787e9497e34d5e42e82815c8efaec0ba37872246dd66edcefd3a02dad8206b0e91f27ac73be9d7e44512c8f10db042fc34012828fd35884f2e4227807
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C:\WINDOWS\tasksche.exeFilesize
2.0MB
MD5d7421e05d407fc58d2b5524c8ca6d566
SHA1ef787a0c924ce046e5b0e0ae918b8f7c9afcf76f
SHA2561f834385decc777c41a193e77be01215495bccd0c9ce4f6c08f9a60824021da3
SHA51284a78f6826c50bb1357d1fdfe2cf09a8c8772404d0483c21572313f5bd3c16466c038667231ee2fc21ae19bb31651249d0e073a4e87eb64b026dd033e1f6c158
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C:\Windows\mssecsvr.exeFilesize
2.2MB
MD5582a6a9581116c1b670aa804ef41d1d8
SHA146bd1026ac63d9b22d6dd8935f23cb2eb8057ed2
SHA256c1500978e57d8b886e4bd0782b8679045bef80537ca993fc76ce81103c7f0beb
SHA512600f4ef787e9497e34d5e42e82815c8efaec0ba37872246dd66edcefd3a02dad8206b0e91f27ac73be9d7e44512c8f10db042fc34012828fd35884f2e4227807
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C:\Windows\mssecsvr.exeFilesize
2.2MB
MD5582a6a9581116c1b670aa804ef41d1d8
SHA146bd1026ac63d9b22d6dd8935f23cb2eb8057ed2
SHA256c1500978e57d8b886e4bd0782b8679045bef80537ca993fc76ce81103c7f0beb
SHA512600f4ef787e9497e34d5e42e82815c8efaec0ba37872246dd66edcefd3a02dad8206b0e91f27ac73be9d7e44512c8f10db042fc34012828fd35884f2e4227807
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C:\Windows\tasksche.exeFilesize
2.0MB
MD5d7421e05d407fc58d2b5524c8ca6d566
SHA1ef787a0c924ce046e5b0e0ae918b8f7c9afcf76f
SHA2561f834385decc777c41a193e77be01215495bccd0c9ce4f6c08f9a60824021da3
SHA51284a78f6826c50bb1357d1fdfe2cf09a8c8772404d0483c21572313f5bd3c16466c038667231ee2fc21ae19bb31651249d0e073a4e87eb64b026dd033e1f6c158
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memory/2216-131-0x0000000000000000-mapping.dmp
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memory/2344-130-0x0000000000000000-mapping.dmp
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memory/2880-135-0x0000000000000000-mapping.dmp