wannacry | 0c3056c18e3201b7963d4a9e9fe1560271562095f5ea43245a38bdbc38f3cdc7

General

Target

85ee37ea174b466e6a55c36e7e5104a4_JaffaCakes118.dll
Size

5.0MB
MD5

85ee37ea174b466e6a55c36e7e5104a4
SHA1

2ca84a45c50c6664ee928eeb3a3cfc6bdf954226
SHA256

0c3056c18e3201b7963d4a9e9fe1560271562095f5ea43245a38bdbc38f3cdc7
SHA512

db3487b1b482908de15391bcbae0389729b4dae16f53d7e538643b860b66d8b7e963478992fe791004ba5987121dc13df62b47eebfd2192f185dcbab277465a1
SSDEEP

98304:+DqPoBhz13RxcSUDk36SAEdhvxWa9P593R8yAVp2:+DqPe1hxcxk3ZAEUadzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3032) 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

2184 mssecsvc.exe
2824 mssecsvc.exe
2276 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
2184	mssecsvc.exe
2824	mssecsvc.exe
2276	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\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\Wpad\{21375391-3F4D-4558-8330-637CD890942A}\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-43-0f-be-be-1b	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-43-0f-be-be-1b\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{21375391-3F4D-4558-8330-637CD890942A}\96-43-0f-be-be-1b	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
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	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
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{21375391-3F4D-4558-8330-637CD890942A}	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{21375391-3F4D-4558-8330-637CD890942A}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-43-0f-be-be-1b\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-43-0f-be-be-1b\WpadDecisionTime = 0009640710b3da01	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\UNCAsIntranet = "0"	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\{21375391-3F4D-4558-8330-637CD890942A}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	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\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0073000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{21375391-3F4D-4558-8330-637CD890942A}\WpadDecisionTime = 0009640710b3da01	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2220	2320	rundll32.exe	rundll32.exe
PID 2220 wrote to memory of 2184	2220	rundll32.exe	mssecsvc.exe
PID 2220 wrote to memory of 2184	2220	rundll32.exe	mssecsvc.exe
PID 2220 wrote to memory of 2184	2220	rundll32.exe	mssecsvc.exe
PID 2220 wrote to memory of 2184	2220	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85ee37ea174b466e6a55c36e7e5104a4_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85ee37ea174b466e6a55c36e7e5104a4_JaffaCakes118.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2220

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2184

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:2276

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:2824

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
5433df247f251572a8ce800369692d55

SHA1
d731ac55b841044b41edc21f95e671494f56a1bd

SHA256
9539c79cbc93bd3c8d47bb28e5559dd659578efdd68d23b5a532253789b94780

SHA512
ca9b4feaca57a9b3d079fee12323936c98d705753a642e96691c7873c3fbade7ec3591aa822f7a5f05b7c696f9f481ab45d18f82ed7da8cfea12ec5abb203c5b

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

MD5
3bacffc806936ef8a8a9c960b49acc32

SHA1
5489a7cd1dafd8ef73e7d79fe14bf2f3abb85205

SHA256
f70cef584695bc233c392b39fe252cac5a44158940dc330db98ec9c6426fa5e1

SHA512
9d80fe87cdd24641bd33a22609010072b8dd3608b3180ffc82c0179253da04bebebfeefe49b9983ec2be17e82ec3f9637fb2dfc13b2ec250c7747cb68db2d633

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads