wannacry | 214c15fada69dafc68f85eb37b8551f3d53da048eebfb6b8877203f6385d97e0

General

Target

112898647ce320efd2e9cf08cb164953_JaffaCakes118.dll
Size

5.0MB
MD5

112898647ce320efd2e9cf08cb164953
SHA1

f81a19540c99c9c21592463de04c3de1d2830139
SHA256

214c15fada69dafc68f85eb37b8551f3d53da048eebfb6b8877203f6385d97e0
SHA512

49b25542c7dabafeadbbdbfb9dbc3d6464364b2c7180d1cb1cab8ebb0983578aba01cdd8cdd57ac502215cf6d479e46fc8bf5bc6cbf2c1a20ecd5e8209182dc6
SSDEEP

49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAABplA:+DqPoBhz1aRxcSUDk36SACp2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3299) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

1932 mssecsvc.exe
2976 mssecsvc.exe
2820 tasksche.exe
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

pid	process
1932	mssecsvc.exe
2976	mssecsvc.exe
2820	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
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\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadDecision = "0"	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\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96\WpadDecisionTime = b0476612c59dda01	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\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\9a-eb-61-f9-8d-96	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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadDecisionTime = b0476612c59dda01	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96\WpadDecision = "0"	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\Content\CachePrefix	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 2932 wrote to memory of 1276	2932	rundll32.exe	rundll32.exe
PID 1276 wrote to memory of 1932	1276	rundll32.exe	mssecsvc.exe
PID 1276 wrote to memory of 1932	1276	rundll32.exe	mssecsvc.exe
PID 1276 wrote to memory of 1932	1276	rundll32.exe	mssecsvc.exe
PID 1276 wrote to memory of 1932	1276	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\112898647ce320efd2e9cf08cb164953_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2932

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\112898647ce320efd2e9cf08cb164953_JaffaCakes118.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1276

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1932

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:2820

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:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
228b6f8b99ea1d08e621908ab4b73bf5

SHA1
2f527c549a13ae017a91b0addbc77e70584a3a29

SHA256
700713365799d6784ad7ebbcc8fb3f8dba75228a7eb2d706e4507a7269eed6d9

SHA512
5c11c609d284a41250284ff465e5e3356b3edbd49b9a5ed6efd4cc6555c433f7ec80078f19e0c4c29da7722f00af9109a0dba9d529a88662e32253a8c648cfde

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

MD5
076ee29840e803007070be273aed3df3

SHA1
d3c6b8c9415e4e2c77f73b8593e925e4b11dc221

SHA256
ec29cd92443459a52e9305ee2a94bbe949f325b94bc73ce3e65a1813e055a614

SHA512
d1c6d84a2ac80b995d915353df25f2dac9d4abaa33a77fb0676a2112d9a3b5652aaeaf797d3c98b76e3144fb8ce42f23a66290fa81a410c0439b7ee1bff161d6

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads