wannacry | 8a8b241a3395b9d5a710ef4239f121df1489b8a46abd6b0c8fad55905df06fba

General

Target

8a8b241a3395b9d5a710ef4239f121df1489b8a46abd6b0c8fad55905df06fba.dll
Size

5.0MB
MD5

e47b15b0137d90824863a9dc6d105647
SHA1

c233929bb352bb8b5e4a02cfc0570b246d5e6eb5
SHA256

8a8b241a3395b9d5a710ef4239f121df1489b8a46abd6b0c8fad55905df06fba
SHA512

04f2fb645d7e4b11feda8c3270fd543fccdb3341690d437b4279a33bfaef646db85d64f133f2bfc982140d967c8205d27fe0246654f9d71a9adacc2c6c417a87

Score

10^/10

wannacry ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

1992 mssecsvc.exe
1740 mssecsvc.exe
2028 tasksche.exe

pid	process
1992	mssecsvc.exe
1740	mssecsvc.exe
2028	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

mssecsvc.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	mssecsvc.exe

Drops file in Windows directory 2 IoCs

Processes:

rundll32.exemssecsvc.exe

description ioc process

File created C:\WINDOWS\mssecsvc.exe rundll32.exe
File created C:\WINDOWS\tasksche.exe mssecsvc.exe

description	ioc	process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

mssecsvc.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = f00b2e7d9b49d701	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-84-8e-9d-3b-ae\WpadDecisionTime = f00b2e7d9b49d701	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-84-8e-9d-3b-ae	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-84-8e-9d-3b-ae\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\62-84-8e-9d-3b-ae	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a070015000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-84-8e-9d-3b-ae\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network"	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1092 wrote to memory of 1160	1092	rundll32.exe	rundll32.exe
PID 1160 wrote to memory of 1992	1160	rundll32.exe	mssecsvc.exe
PID 1160 wrote to memory of 1992	1160	rundll32.exe	mssecsvc.exe
PID 1160 wrote to memory of 1992	1160	rundll32.exe	mssecsvc.exe
PID 1160 wrote to memory of 1992	1160	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a8b241a3395b9d5a710ef4239f121df1489b8a46abd6b0c8fad55905df06fba.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a8b241a3395b9d5a710ef4239f121df1489b8a46abd6b0c8fad55905df06fba.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1160

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1992

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:2028

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1740

Network

MITRE ATT&CK Matrix

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Downloads

C:\WINDOWS\mssecsvc.exe
MD5
7b11d4c3dda0783cc64cc15eb73f81a3

SHA1
a759114bbebd9085aef153a996835d7e3fade6a0

SHA256
01288f5bf5390ae8e0dfab80ff4971fb3e4fa8179a363ffeb2ff0dcfd43c583b

SHA512
698a0d82b5649b1f9ce8de84e5afc900297c026b475d0d990f8d79f5f69675ffab32f2eaf1b4d9e78c2e9fda80cd5f99482e426e3154fc0948d58dfcaa6f1ac1

Download Submit
C:\Windows\mssecsvc.exe
MD5
7b11d4c3dda0783cc64cc15eb73f81a3

SHA1
a759114bbebd9085aef153a996835d7e3fade6a0

SHA256
01288f5bf5390ae8e0dfab80ff4971fb3e4fa8179a363ffeb2ff0dcfd43c583b

SHA512
698a0d82b5649b1f9ce8de84e5afc900297c026b475d0d990f8d79f5f69675ffab32f2eaf1b4d9e78c2e9fda80cd5f99482e426e3154fc0948d58dfcaa6f1ac1

Download Submit
C:\Windows\mssecsvc.exe
MD5
7b11d4c3dda0783cc64cc15eb73f81a3

SHA1
a759114bbebd9085aef153a996835d7e3fade6a0

SHA256
01288f5bf5390ae8e0dfab80ff4971fb3e4fa8179a363ffeb2ff0dcfd43c583b

SHA512
698a0d82b5649b1f9ce8de84e5afc900297c026b475d0d990f8d79f5f69675ffab32f2eaf1b4d9e78c2e9fda80cd5f99482e426e3154fc0948d58dfcaa6f1ac1

Download Submit
C:\Windows\tasksche.exe
MD5
57c379e1881a5aa6e789abec995953ec

SHA1
8b9026ddc297aed71d5457107c3857f0fc48deb7

SHA256
3a8cf4f23866d8cd7b3ca2ce2a35297fd2b520323c5e5b4510a50ea5dba879a8

SHA512
71eae2e0f696c2e792dd06457cb20e9df0a7e8c794053e0bad7aa141cd37f87a6dfe63c411d1014043011004245a6c701c7b8337492dfa72ec54caafa18fdff9

Download Submit
memory/1160-60-0x0000000000000000-mapping.dmp

Download
memory/1160-61-0x0000000075AA1000-0x0000000075AA3000-memory.dmp

Filesize
8KB

Download
memory/1992-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads