wannacry | e1fe02b7aedd39d08211ebc47b5af21a05f8be7a6cc2de2b20835f37a5919d37

General

Target

a48ca7b40ab2a6ebdd94dbd52164c6cf.dll
Size

5.0MB
MD5

a48ca7b40ab2a6ebdd94dbd52164c6cf
SHA1

9203753bc934a2ae18c94b1127905f277316b481
SHA256

e1fe02b7aedd39d08211ebc47b5af21a05f8be7a6cc2de2b20835f37a5919d37
SHA512

f028aedb790d2f1135a06ae5ba037e607a23b209aeb3115bc4f05a6bca7405136d92e7674ec2f3b115e93ab4cf487c74919c2824dc81406cfc13f0135b6ebcb0

Score

10^/10

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

Processes:

mssecsvr.exemssecsvr.exe

pid process

2652 mssecsvr.exe
3916 mssecsvr.exe

pid	process
2652	mssecsvr.exe
3916	mssecsvr.exe

Drops file in System32 directory 7 IoCs

Processes:

mssecsvr.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	mssecsvr.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	mssecsvr.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	mssecsvr.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	mssecsvr.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\R02SZ9CS.cookie	mssecsvr.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\R02SZ9CS.cookie	mssecsvr.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	mssecsvr.exe

Drops file in Windows directory 2 IoCs

Processes:

rundll32.exemssecsvr.exe

description ioc process

File created C:\WINDOWS\mssecsvr.exe rundll32.exe
File created C:\WINDOWS\tasksche.exe mssecsvr.exe

description	ioc	process
File created	C:\WINDOWS\mssecsvr.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvr.exe

Modifies data under HKEY_USERS 8 IoCs

Processes:

mssecsvr.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 3984 wrote to memory of 1000	3984	rundll32.exe	rundll32.exe
PID 3984 wrote to memory of 1000	3984	rundll32.exe	rundll32.exe
PID 3984 wrote to memory of 1000	3984	rundll32.exe	rundll32.exe
PID 1000 wrote to memory of 2652	1000	rundll32.exe	mssecsvr.exe
PID 1000 wrote to memory of 2652	1000	rundll32.exe	mssecsvr.exe
PID 1000 wrote to memory of 2652	1000	rundll32.exe	mssecsvr.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a48ca7b40ab2a6ebdd94dbd52164c6cf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3984

C:\WINDOWS\mssecsvr.exe
MD5
eb5022ab51a6b0321542d82ad6fd8998

SHA1
c05b1f611631ff96bcea894528d5a234dc148f95

SHA256
616edb95177a6f2025fe69cf69814a192c353ed6cf1bf1328dcfbd85526451e3

SHA512
00e5ed43c62f0a1535f7f0c595bc38768fa9def02c10ac8fc3e99a713075cd861714d8cce3a69701e8d958a4554d6d209d7d962828395dfe380c72c4f6599f43

Download Submit
C:\Windows\mssecsvr.exe
MD5
eb5022ab51a6b0321542d82ad6fd8998

SHA1
c05b1f611631ff96bcea894528d5a234dc148f95

SHA256
616edb95177a6f2025fe69cf69814a192c353ed6cf1bf1328dcfbd85526451e3

SHA512
00e5ed43c62f0a1535f7f0c595bc38768fa9def02c10ac8fc3e99a713075cd861714d8cce3a69701e8d958a4554d6d209d7d962828395dfe380c72c4f6599f43

Download Submit
C:\Windows\mssecsvr.exe
MD5
eb5022ab51a6b0321542d82ad6fd8998

SHA1
c05b1f611631ff96bcea894528d5a234dc148f95

SHA256
616edb95177a6f2025fe69cf69814a192c353ed6cf1bf1328dcfbd85526451e3

SHA512
00e5ed43c62f0a1535f7f0c595bc38768fa9def02c10ac8fc3e99a713075cd861714d8cce3a69701e8d958a4554d6d209d7d962828395dfe380c72c4f6599f43

Download Submit
memory/1000-0-0x0000000000000000-mapping.dmp

Download
memory/2652-1-0x0000000000000000-mapping.dmp

Download