Analysis
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max time kernel
150s -
max time network
152s -
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 01:21
Static task
static1
Behavioral task
behavioral1
Sample
c12a265a269f9db4c29ee7308488a4a9.dll
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
c12a265a269f9db4c29ee7308488a4a9.dll
Resource
win10v2004-20220718-en
General
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Target
c12a265a269f9db4c29ee7308488a4a9.dll
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Size
5.0MB
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MD5
c12a265a269f9db4c29ee7308488a4a9
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SHA1
b60e0dd175d66e343ea6f5329ea3aba14f13c23d
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SHA256
5e543c96b537b9ac589b9e94cb4080c8e45330ce854eda6a1755351902f5d435
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SHA512
c70659229e42e8d49cc03cb4158c01adc80a986319c13f5c472b3c1f99af455444f7f918d301e7d5689569fc0f128060086057f0f948dd1d4c150a07c8b953b1
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (2574) 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 3196 mssecsvc.exe 4324 mssecsvc.exe 4320 tasksche.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 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 4224 wrote to memory of 836 4224 rundll32.exe rundll32.exe PID 4224 wrote to memory of 836 4224 rundll32.exe rundll32.exe PID 4224 wrote to memory of 836 4224 rundll32.exe rundll32.exe PID 836 wrote to memory of 3196 836 rundll32.exe mssecsvc.exe PID 836 wrote to memory of 3196 836 rundll32.exe mssecsvc.exe PID 836 wrote to memory of 3196 836 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c12a265a269f9db4c29ee7308488a4a9.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c12a265a269f9db4c29ee7308488a4a9.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
MD5b5d7dab7278c0ec855d70664e2c602ba
SHA1d4498db5b4a3535d6e957f73078861dab4820d2d
SHA256aa8e0b683f9721c9ff7d0ea54ecf1ac8edf8eeb0e44552cbc5143a32bf3cd4a6
SHA5124be9af67ae7ac561de8d3ba00c3db104c12aeb593b71678ea4d78ff273b693f2d0fd845566f9639ae6d6238e879aa26c3db71461bd0d75a46e60b55d7a67b73f
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5b5d7dab7278c0ec855d70664e2c602ba
SHA1d4498db5b4a3535d6e957f73078861dab4820d2d
SHA256aa8e0b683f9721c9ff7d0ea54ecf1ac8edf8eeb0e44552cbc5143a32bf3cd4a6
SHA5124be9af67ae7ac561de8d3ba00c3db104c12aeb593b71678ea4d78ff273b693f2d0fd845566f9639ae6d6238e879aa26c3db71461bd0d75a46e60b55d7a67b73f
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5b5d7dab7278c0ec855d70664e2c602ba
SHA1d4498db5b4a3535d6e957f73078861dab4820d2d
SHA256aa8e0b683f9721c9ff7d0ea54ecf1ac8edf8eeb0e44552cbc5143a32bf3cd4a6
SHA5124be9af67ae7ac561de8d3ba00c3db104c12aeb593b71678ea4d78ff273b693f2d0fd845566f9639ae6d6238e879aa26c3db71461bd0d75a46e60b55d7a67b73f
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C:\Windows\tasksche.exeFilesize
3.4MB
MD564a81f920a27dcb3fe4d2b94ab047a86
SHA1cdcc302aabfb420e239ef1637d94e6d5a84acc72
SHA256096470b766cd3813729285b23d4392e6941a592f90087169b77dda0359cb1374
SHA51223fdecab454abd2c3d1301eb41f4deeab65550066de0899a0a2b51e46832cf423f8ebc22d3131e4c6727c60626702da829d768d061934ba4f3565ff2ed700211
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memory/836-130-0x0000000000000000-mapping.dmp
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memory/3196-131-0x0000000000000000-mapping.dmp