wannacry | 30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726

General

Target

30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll
Size

5.0MB
MD5

4bbb8df5d25162f260e362c7dbce13ba
SHA1

67e8415d133178158461b946d5ca0533e1015409
SHA256

30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726
SHA512

9ccf0cfa8078450a16fffd5c4a0fe79cb2cbe621b9ebf5224d3318d45602b3569ee8f470c882885cc049eab46ef61b5ecb09c7e6d7646d962eee917b7b043267

Score

10^/10

wannacry discovery 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
Contacts a large (1266) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

1860 mssecsvc.exe
1580 mssecsvc.exe
1500 tasksche.exe

pid	process
1860	mssecsvc.exe
1580	mssecsvc.exe
1500	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:

mssecsvc.exerundll32.exe

description ioc process

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

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

Modifies data under HKEY_USERS 24 IoCs

Processes:

mssecsvc.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0096000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\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 (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83CBA60A-0B93-4B28-9EE5-597968409073}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83CBA60A-0B93-4B28-9EE5-597968409073}\WpadDecisionTime = e06005a32085d801	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83CBA60A-0B93-4B28-9EE5-597968409073}\WpadNetworkName = "Network 2"	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\{83CBA60A-0B93-4B28-9EE5-597968409073}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-54-ce-26-d3-f1	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83CBA60A-0B93-4B28-9EE5-597968409073}\26-54-ce-26-d3-f1	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-54-ce-26-d3-f1\WpadDecisionTime = e06005a32085d801	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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
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\AutoDetect = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83CBA60A-0B93-4B28-9EE5-597968409073}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-54-ce-26-d3-f1\WpadDecisionReason = "1"	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\Wpad\26-54-ce-26-d3-f1\WpadDecision = "0"	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 1616	1384	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1860	1616	rundll32.exe	mssecsvc.exe
PID 1616 wrote to memory of 1860	1616	rundll32.exe	mssecsvc.exe
PID 1616 wrote to memory of 1860	1616	rundll32.exe	mssecsvc.exe
PID 1616 wrote to memory of 1860	1616	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1384

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\30dfe8984c16055acdb3720a8e2c51ad67dfc4bcf274f9d6df8d7ad206b0d726.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1616

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1860

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1500

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:1580

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\WINDOWS\mssecsvc.exe
Filesize
3.6MB

MD5
b4c209a4f8fabc592e4ead83b35be9e9

SHA1
059c25d60037f22a4baf8bb880a2d9c4925d6aa2

SHA256
e7095a47d3f3181c4afb16311f33c5d6e83dfbb5f7968702bc7ee2323995a1a0

SHA512
1a1c26ff94b3d508b2c690d557456b865c9c7bab5f649c899f11cb7136c9afb1e959b7b9c5c0d2cec4f05a158a3a6fe11982f003d62020019edcd2beb9939878

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

MD5
b4c209a4f8fabc592e4ead83b35be9e9

SHA1
059c25d60037f22a4baf8bb880a2d9c4925d6aa2

SHA256
e7095a47d3f3181c4afb16311f33c5d6e83dfbb5f7968702bc7ee2323995a1a0

SHA512
1a1c26ff94b3d508b2c690d557456b865c9c7bab5f649c899f11cb7136c9afb1e959b7b9c5c0d2cec4f05a158a3a6fe11982f003d62020019edcd2beb9939878

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

MD5
b4c209a4f8fabc592e4ead83b35be9e9

SHA1
059c25d60037f22a4baf8bb880a2d9c4925d6aa2

SHA256
e7095a47d3f3181c4afb16311f33c5d6e83dfbb5f7968702bc7ee2323995a1a0

SHA512
1a1c26ff94b3d508b2c690d557456b865c9c7bab5f649c899f11cb7136c9afb1e959b7b9c5c0d2cec4f05a158a3a6fe11982f003d62020019edcd2beb9939878

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

MD5
a91911fc8117f96a839732d915ec0713

SHA1
64d7ece080daada008fc447e1972fdffbad03220

SHA256
14ca561629d21c811f309167d640c6dc2accd72b19c687c5b23449dd8c0fe5ac

SHA512
43c54406f9199e23c3ae4e04b457c956aff3a6b96fc726c4ed17890bc0be900e7b836c56350a250570c7bc2272600ba2d2a400cb0dc379c7bdb3365dcfca779a

Download Submit
memory/1616-54-0x0000000000000000-mapping.dmp

Download
memory/1616-55-0x0000000076011000-0x0000000076013000-memory.dmp

Filesize
8KB

Download
memory/1860-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads