wannacry | 7a8f03f878be1a9edf1fd5c0d4bef4808be8434410030c2e8f2e9257553cc728

General

Target

7a8f03f878be1a9edf1fd5c0d4bef4808be8434410030c2e8f2e9257553cc728.dll
Size

5.0MB
MD5

17243fc984cc18f6bfc96752869722fe
SHA1

cb603f094c226fb668a93dd6eaef4dbcda9a0a92
SHA256

7a8f03f878be1a9edf1fd5c0d4bef4808be8434410030c2e8f2e9257553cc728
SHA512

98ebe3e9f6d6f04f6c9b479e5964094dfa204396f8b012afdcb66e2be325ec2ed4e590df08a78b19959eee7a9e65b0396092d3908a68096fb128408bf78fda23

Score

10^/10

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Executes dropped EXE 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1268 mssecsvc.exe
3300 mssecsvc.exe

pid	process
1268	mssecsvc.exe
3300	mssecsvc.exe

Drops file in System32 directory 7 IoCs

Processes:

mssecsvc.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	mssecsvc.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\KTSPS5V6.cookie	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\KTSPS5V6.cookie	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	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 8 IoCs

Processes:

mssecsvc.exe

description	ioc	process
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\ProxyBypass = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "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\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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 4020 wrote to memory of 4052	4020	rundll32.exe	rundll32.exe
PID 4020 wrote to memory of 4052	4020	rundll32.exe	rundll32.exe
PID 4020 wrote to memory of 4052	4020	rundll32.exe	rundll32.exe
PID 4052 wrote to memory of 1268	4052	rundll32.exe	mssecsvc.exe
PID 4052 wrote to memory of 1268	4052	rundll32.exe	mssecsvc.exe
PID 4052 wrote to memory of 1268	4052	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a8f03f878be1a9edf1fd5c0d4bef4808be8434410030c2e8f2e9257553cc728.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4020

C:\WINDOWS\mssecsvc.exe
MD5
c7d159397b5c4b1c816151e15d15c786

SHA1
8deb664e15e2d9f732bf37096dc224bcb59c7200

SHA256
cc21463955684526ed9ebf2c70269a08ee5e8b44c9f64d398406c0e2727f1e8c

SHA512
11a96bd4ede3365cebb1b8759da35057afbf690df1197da2c42ab62461934bfcf7e34b4f45362aba354eeef6721b392f103a142371d05035b7bfddf8385b0900

Download Submit
C:\Windows\mssecsvc.exe
MD5
c7d159397b5c4b1c816151e15d15c786

SHA1
8deb664e15e2d9f732bf37096dc224bcb59c7200

SHA256
cc21463955684526ed9ebf2c70269a08ee5e8b44c9f64d398406c0e2727f1e8c

SHA512
11a96bd4ede3365cebb1b8759da35057afbf690df1197da2c42ab62461934bfcf7e34b4f45362aba354eeef6721b392f103a142371d05035b7bfddf8385b0900

Download Submit
C:\Windows\mssecsvc.exe
MD5
c7d159397b5c4b1c816151e15d15c786

SHA1
8deb664e15e2d9f732bf37096dc224bcb59c7200

SHA256
cc21463955684526ed9ebf2c70269a08ee5e8b44c9f64d398406c0e2727f1e8c

SHA512
11a96bd4ede3365cebb1b8759da35057afbf690df1197da2c42ab62461934bfcf7e34b4f45362aba354eeef6721b392f103a142371d05035b7bfddf8385b0900

Download Submit
memory/1268-115-0x0000000000000000-mapping.dmp

Download
memory/4052-114-0x0000000000000000-mapping.dmp

Download