wannacry | 22fe1c9d7a5f977680c663371b6f6fc569d717d1e6f9e05adee08132f79e3b94

General

Target

2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Size

3.6MB
MD5

0ac20526d102551f59b706c6fb69b955
SHA1

7a6902116f2cbd227552812eb7247c75aadfe6f0
SHA256

22fe1c9d7a5f977680c663371b6f6fc569d717d1e6f9e05adee08132f79e3b94
SHA512

1d59cac2356c2b7ee3a45df31c8d011e5e6386cf1c034b2e18ee5669486630028ecf5b4f56b67b2fdc83c7ef89c8ccf4e9891679dc8753ea29572a881a2d8222
SSDEEP

12288:GQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFW:tbLguVQhfdmMSirYbcMNgef0QeQjG/

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3277) 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 1 IoCs

Processes:

tasksche.exe

pid process

4148 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
4148	tasksche.exe

Drops file in System32 directory 4 IoCs

Processes:

2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:3852

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:4148

C:\Users\Admin\AppData\Local\Temp\2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-05-13_0ac20526d102551f59b706c6fb69b955_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1880

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

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
5b488d09525b7c3cb94cf2b5acc5dba8

SHA1
d9a48afcf0092c33e02c6b272978e295cfca01a6

SHA256
de5e6337f444de2796267a0f6465e2e4ce62bf60ab192c9bb1894eac4c7bc4f5

SHA512
f848247ce714b93e2f2360a34424595e6723c07524507d95c0195ff1780a9ced6097612f84633385e536774d36cc0c97dd41ec14ba10886d98b7250b711523b6

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