wannacry | 6c16edaca2f239d81cdf8209fdd224471960bf458dbba23c44f19fe86d716e7c

General

Target

ad143d855ed6fe12573a7b09efd6ee5b_JaffaCakes118.dll
Size

5.0MB
MD5

ad143d855ed6fe12573a7b09efd6ee5b
SHA1

52f74369c47090ff862a28af995ed32feb942c05
SHA256

6c16edaca2f239d81cdf8209fdd224471960bf458dbba23c44f19fe86d716e7c
SHA512

beb64b9d37d043a21cab369f62ee52f0531e9eb71b742d7e9438d704485533f685ac3109376cff76b1559a3ba4814a9ce708be079fa37787056b0c9181e34204
SSDEEP

98304:TDqPoBhz1aRxcSUDk36SASdhvxWa9P593R8sJ:TDqPe1Cxcxk3ZASUadzR8s

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2670) 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

2956 mssecsvc.exe
2644 mssecsvc.exe
2572 tasksche.exe

pid	process
2956	mssecsvc.exe
2644	mssecsvc.exe
2572	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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00aa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-32-83-09-e1-3f\WpadDecisionReason = "1"	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 (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\{285CEA55-DED8-4E9A-915A-2BD2A0D69538}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{285CEA55-DED8-4E9A-915A-2BD2A0D69538}\96-32-83-09-e1-3f	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-32-83-09-e1-3f\WpadDecision = "0"	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\Content\CachePrefix	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{285CEA55-DED8-4E9A-915A-2BD2A0D69538}\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{285CEA55-DED8-4E9A-915A-2BD2A0D69538}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{285CEA55-DED8-4E9A-915A-2BD2A0D69538}\WpadDecisionTime = 502a1abae8beda01	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-32-83-09-e1-3f	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\ProxyEnable = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{285CEA55-DED8-4E9A-915A-2BD2A0D69538}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-32-83-09-e1-3f\WpadDecisionTime = 502a1abae8beda01	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 2180 wrote to memory of 848	2180	rundll32.exe	rundll32.exe
PID 848 wrote to memory of 2956	848	rundll32.exe	mssecsvc.exe
PID 848 wrote to memory of 2956	848	rundll32.exe	mssecsvc.exe
PID 848 wrote to memory of 2956	848	rundll32.exe	mssecsvc.exe
PID 848 wrote to memory of 2956	848	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ad143d855ed6fe12573a7b09efd6ee5b_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ad143d855ed6fe12573a7b09efd6ee5b_JaffaCakes118.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:848

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2956

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:2572

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:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
478a30349e40d90f90f54e5e440e7265

SHA1
37cb981546d53825323cd39f952f06fb7d110a27

SHA256
834390249a1c816b43be8f7049c3b9e288f918f375b484a936c834de5f9078a5

SHA512
25580efcf94bbcf7e0ced87c9a362620013d0f322d433810c1d52cc12bdfc538eaffb84d97ee00ccf8dc6580e7bdc6d63ca68398797a29427849c206bf32945a

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C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
0cb6eddf35473a5904a2b56bd391efec

SHA1
8111594e887e972bed1d9c3ab08fd324dcc4deaa

SHA256
f9d55d230e908a6005593b0941840fffb83475ef69014ba20e81dea56309fd42

SHA512
86627a974f9bade1222792ec978ae51c0de5571db66627e06a4d9fde5e100d4e3d267aaa9c1544a18793c8d55147bb603a31872df478dd238a547f32eb808e6a

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads