wannacry | f88896ee7a238e282b6d70971f2113ee11da11ba8797d84d0f629ce0b6fbf3c5

General

Target

eca094ab2d325e60b301e8deba35fa8b.dll
Size

5.0MB
MD5

eca094ab2d325e60b301e8deba35fa8b
SHA1

9c4c8e778019818b146d0659c1219e423d06ccca
SHA256

f88896ee7a238e282b6d70971f2113ee11da11ba8797d84d0f629ce0b6fbf3c5
SHA512

c1703b8b131c8d1e7d62635c1862ab8a397e2722a797b83722add8200436e7a17e1da1fff64842d9e18752d02bf84f8e2c5e5ae417c8d377f1e1ab8a2a2c223d

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1234) 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

1916 mssecsvc.exe
952 mssecsvc.exe
472 tasksche.exe

pid	process
1916	mssecsvc.exe
952	mssecsvc.exe
472	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 (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-41-ad-68-bd-b6\WpadDecision = "0"	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\Connections	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 (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\{E66EE570-464A-40AE-8DEB-CEB1E506A2E9}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E66EE570-464A-40AE-8DEB-CEB1E506A2E9}\WpadDecisionTime = 2007f992ea9bd801	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-41-ad-68-bd-b6	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\SavedLegacySettings = 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\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cf000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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 (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E66EE570-464A-40AE-8DEB-CEB1E506A2E9}\WpadDecision = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E66EE570-464A-40AE-8DEB-CEB1E506A2E9}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-41-ad-68-bd-b6\WpadDecisionTime = 2007f992ea9bd801	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\Wpad\{E66EE570-464A-40AE-8DEB-CEB1E506A2E9}\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E66EE570-464A-40AE-8DEB-CEB1E506A2E9}\0a-41-ad-68-bd-b6	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-41-ad-68-bd-b6\WpadDecisionReason = "1"	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1616 wrote to memory of 1484	1616	rundll32.exe	rundll32.exe
PID 1484 wrote to memory of 1916	1484	rundll32.exe	mssecsvc.exe
PID 1484 wrote to memory of 1916	1484	rundll32.exe	mssecsvc.exe
PID 1484 wrote to memory of 1916	1484	rundll32.exe	mssecsvc.exe
PID 1484 wrote to memory of 1916	1484	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\eca094ab2d325e60b301e8deba35fa8b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1616

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\eca094ab2d325e60b301e8deba35fa8b.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1484

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1916

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:472

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:952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\WINDOWS\mssecsvc.exe

Filesize
3.6MB

MD5
d33cda3e33c46c8fc18d648dffd56bad

SHA1
2805e04d687b06cf2a03c64ce1aab51549146e44

SHA256
dd554455be6d2adf8dcdf68b42c557b7d0e8e743ee2f3e0cdb0594641b45e39d

SHA512
00b93996cf1493d593e632bfe5b9b7a95f8b549403e03f37ddf14278c8a7e248e98b80214bd166f8f653c5ecbec22ed3f1933ec87fc09222159a2557030e78b6

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
d33cda3e33c46c8fc18d648dffd56bad

SHA1
2805e04d687b06cf2a03c64ce1aab51549146e44

SHA256
dd554455be6d2adf8dcdf68b42c557b7d0e8e743ee2f3e0cdb0594641b45e39d

SHA512
00b93996cf1493d593e632bfe5b9b7a95f8b549403e03f37ddf14278c8a7e248e98b80214bd166f8f653c5ecbec22ed3f1933ec87fc09222159a2557030e78b6

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
d33cda3e33c46c8fc18d648dffd56bad

SHA1
2805e04d687b06cf2a03c64ce1aab51549146e44

SHA256
dd554455be6d2adf8dcdf68b42c557b7d0e8e743ee2f3e0cdb0594641b45e39d

SHA512
00b93996cf1493d593e632bfe5b9b7a95f8b549403e03f37ddf14278c8a7e248e98b80214bd166f8f653c5ecbec22ed3f1933ec87fc09222159a2557030e78b6

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
6bd49aec118f6df4e2a7076dfbabfadd

SHA1
05304b7b4c61cf08f00f49e19cc85af9508b6ac4

SHA256
1b88ec91307d556ca5c95dad8ab28d65e4e11b02050889fd8b850b54445feee5

SHA512
f7c0472977984b3a5377bd095719684f2e42f28b802035144820811a7684b4e845537b334c41dc89eb765e8903d4aaf5eec76a065deac8018f5e32904696cc73

Download Submit
memory/1484-54-0x0000000000000000-mapping.dmp

Download
memory/1484-55-0x00000000758B1000-0x00000000758B3000-memory.dmp

Filesize
8KB

Download
memory/1916-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads