Analysis
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max time kernel
251s -
max time network
258s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
25-06-2022 05:12
Static task
static1
Behavioral task
behavioral1
Sample
97bf7d0702003951c415111c4da37f6aa191036bb655d10b42b57af68091dc72.dll
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
97bf7d0702003951c415111c4da37f6aa191036bb655d10b42b57af68091dc72.dll
Resource
win10v2004-20220414-en
General
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Target
97bf7d0702003951c415111c4da37f6aa191036bb655d10b42b57af68091dc72.dll
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Size
5.0MB
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MD5
1268458a18c26e706de45533e36221a4
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SHA1
dcb8138eb87be9fd2bf7b5e6cf90d084408c49c2
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SHA256
97bf7d0702003951c415111c4da37f6aa191036bb655d10b42b57af68091dc72
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SHA512
6ededc34a7b3c16c6ab116456de97adc88052f608fd9927019db47467a0935c0032935a1659ec754d7f0a4abdaae0b4d013cc12e8f99515365bfefc7e5305275
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 (2040) 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 344 mssecsvc.exe 3748 mssecsvc.exe 3984 tasksche.exe -
Drops file in Windows directory 2 IoCs
Processes:
mssecsvc.exerundll32.exedescription ioc process File created C:\WINDOWS\tasksche.exe mssecsvc.exe File created C:\WINDOWS\mssecsvc.exe rundll32.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 2836 wrote to memory of 3620 2836 rundll32.exe rundll32.exe PID 2836 wrote to memory of 3620 2836 rundll32.exe rundll32.exe PID 2836 wrote to memory of 3620 2836 rundll32.exe rundll32.exe PID 3620 wrote to memory of 344 3620 rundll32.exe mssecsvc.exe PID 3620 wrote to memory of 344 3620 rundll32.exe mssecsvc.exe PID 3620 wrote to memory of 344 3620 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\97bf7d0702003951c415111c4da37f6aa191036bb655d10b42b57af68091dc72.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\97bf7d0702003951c415111c4da37f6aa191036bb655d10b42b57af68091dc72.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3620 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:344 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:3984
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3748
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\WINDOWS\mssecsvc.exeFilesize
3.6MB
MD5e9bf450d371870712d5618ac1a5e97a4
SHA1e19f2346cdb0e8322b772bd9227f5a3d69770aa0
SHA256060de46ae61af278d142cec447de35b5ba5038e9f4e49a971544573a027549a3
SHA512e7c240d05faf2323ba78f1d285e8496bb9f74683a4626023de3ce9c42e36c10f3ebb949f1ae0dbf58694ef21d916c9ad80ee868573dd76f3dbe6f0ceaab4fac9
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5e9bf450d371870712d5618ac1a5e97a4
SHA1e19f2346cdb0e8322b772bd9227f5a3d69770aa0
SHA256060de46ae61af278d142cec447de35b5ba5038e9f4e49a971544573a027549a3
SHA512e7c240d05faf2323ba78f1d285e8496bb9f74683a4626023de3ce9c42e36c10f3ebb949f1ae0dbf58694ef21d916c9ad80ee868573dd76f3dbe6f0ceaab4fac9
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5e9bf450d371870712d5618ac1a5e97a4
SHA1e19f2346cdb0e8322b772bd9227f5a3d69770aa0
SHA256060de46ae61af278d142cec447de35b5ba5038e9f4e49a971544573a027549a3
SHA512e7c240d05faf2323ba78f1d285e8496bb9f74683a4626023de3ce9c42e36c10f3ebb949f1ae0dbf58694ef21d916c9ad80ee868573dd76f3dbe6f0ceaab4fac9
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C:\Windows\tasksche.exeFilesize
3.4MB
MD500b4a7d116c478228ff07bd3994467e6
SHA187de035f85814f561bd58ed901a0b5894c48494c
SHA2565490f926af93a862c26e042d350b73585e9da7f4390cc39679258082c7d55918
SHA51249d97adde33345df2ab763d800adf3adf449c6a470808e5294e9938b441cd33b452d63437b93d34b7c70bd7bcf056e9cc4c3f1c4fd97498476fa867fbba80c16
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memory/344-131-0x0000000000000000-mapping.dmp
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memory/3620-130-0x0000000000000000-mapping.dmp