wannacry | 43bc632541b8b3c8d71d0211e969072173dfbf44d6d3f8e149b89742a0e61952

General

Target

43bc632541b8b3c8d71d0211e969072173dfbf44d6d3f8e149b89742a0e61952.dll
Size

5.0MB
MD5

65047d9e2f90ed75a133096d982c44b5
SHA1

51fa0dd51eb722be4c07daf5c4879a92552b88c5
SHA256

43bc632541b8b3c8d71d0211e969072173dfbf44d6d3f8e149b89742a0e61952
SHA512

b033bc9c3b28bb738bd80f01888998503b277ab8ff6cb058da5c0ca9ed581b4b83a68280b4622699c806af41801e71e3b9301896209eda01d829c2ad53d57d9f

Score

10^/10

wannacry ransomware suricata worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

1180 mssecsvc.exe
1772 mssecsvc.exe
1820 tasksche.exe

pid	process
1180	mssecsvc.exe
1772	mssecsvc.exe
1820	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\Wpad	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-b2-4c-05-48-fb	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D91D596-DE99-47D5-B728-EF2B098C1211}\46-b2-4c-05-48-fb	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvc.exe
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 (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-b2-4c-05-48-fb\WpadDecision = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D91D596-DE99-47D5-B728-EF2B098C1211}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D91D596-DE99-47D5-B728-EF2B098C1211}\WpadDecisionTime = 10d621506392d801	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D91D596-DE99-47D5-B728-EF2B098C1211}\WpadDecision = "0"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\{8D91D596-DE99-47D5-B728-EF2B098C1211}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D91D596-DE99-47D5-B728-EF2B098C1211}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-b2-4c-05-48-fb\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-b2-4c-05-48-fb\WpadDecisionTime = 10d621506392d801	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	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\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 880	888	rundll32.exe	rundll32.exe
PID 880 wrote to memory of 1180	880	rundll32.exe	mssecsvc.exe
PID 880 wrote to memory of 1180	880	rundll32.exe	mssecsvc.exe
PID 880 wrote to memory of 1180	880	rundll32.exe	mssecsvc.exe
PID 880 wrote to memory of 1180	880	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bc632541b8b3c8d71d0211e969072173dfbf44d6d3f8e149b89742a0e61952.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:888

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bc632541b8b3c8d71d0211e969072173dfbf44d6d3f8e149b89742a0e61952.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:880

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1180

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1820

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:1772

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
ca6d77065035c6ee7aa8d2eb34ca35a2

SHA1
a69dedc475948bb39db22bfbcf5c8a3cd49ce3eb

SHA256
17f19aff17388788f96f0ae974617e039e34ac8b0afaf285c6c10bf4e0b6aa22

SHA512
16f3185b4f6328ff313c1f88b52e0807fe13d27b0e40ceae10ca4c3e0b6e4fe988c88abac784a8a959853431664e0c995fa1a9e22411032fe7727c7001799b41

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
ca6d77065035c6ee7aa8d2eb34ca35a2

SHA1
a69dedc475948bb39db22bfbcf5c8a3cd49ce3eb

SHA256
17f19aff17388788f96f0ae974617e039e34ac8b0afaf285c6c10bf4e0b6aa22

SHA512
16f3185b4f6328ff313c1f88b52e0807fe13d27b0e40ceae10ca4c3e0b6e4fe988c88abac784a8a959853431664e0c995fa1a9e22411032fe7727c7001799b41

Download Submit
C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
7fd7470ed9e7ea088461057519eb9be1

SHA1
2f6a64d7d5b86eb23b7dc76fcf4919c1992dfb9f

SHA256
8c64e3c0db08c83c9456d10e867fb054df0c15070b30039dae2ac51679c4b45f

SHA512
994669dfa46d17bad945dbe7804046393bedf0881f0ce34851a7f90927b04b82ddddf0521f8ff9672c5e76d83d0f2947df1e272e5175210211e63e1e41b6b5d7

Download Submit
memory/880-54-0x0000000000000000-mapping.dmp

Download
memory/880-55-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/1180-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads