wannacry | 74c9c570b7b1b383e0f5a266f0f7e17c1336f99e2df28e8be76f7d358c34d707

General

Target

74c9c570b7b1b383e0f5a266f0f7e17c1336f99e2df28e8be76f7d358c34d707.dll
Size

5.0MB
MD5

da480470e229f27bb2632ade91b37300
SHA1

7da6b9048707adf18c997bcaec32d6bebc5580fb
SHA256

74c9c570b7b1b383e0f5a266f0f7e17c1336f99e2df28e8be76f7d358c34d707
SHA512

a39fba8d3b45345ed54dda14acecdbe815af7261eeabb7bd53ec321d31c0d1ad7a2d0e6e67c7596fbad9bc921c65f2635ec1dfb00805768124a2b17dd7c22d2d

Score

10^/10

wannacry ransomware suricata worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

4112 mssecsvc.exe
2260 mssecsvc.exe
444 tasksche.exe
Drops file in Windows directory 2 IoCs

Processes:

mssecsvc.exerundll32.exe

description ioc process

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

pid	process
4112	mssecsvc.exe
2260	mssecsvc.exe
444	tasksche.exe

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

Modifies data under HKEY_USERS 5 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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 3408 wrote to memory of 2420	3408	rundll32.exe	rundll32.exe
PID 3408 wrote to memory of 2420	3408	rundll32.exe	rundll32.exe
PID 3408 wrote to memory of 2420	3408	rundll32.exe	rundll32.exe
PID 2420 wrote to memory of 4112	2420	rundll32.exe	mssecsvc.exe
PID 2420 wrote to memory of 4112	2420	rundll32.exe	mssecsvc.exe
PID 2420 wrote to memory of 4112	2420	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\74c9c570b7b1b383e0f5a266f0f7e17c1336f99e2df28e8be76f7d358c34d707.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3408

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\74c9c570b7b1b383e0f5a266f0f7e17c1336f99e2df28e8be76f7d358c34d707.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2420

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:4112

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:444

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2260

Network

MITRE ATT&CK Matrix

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Downloads

C:\WINDOWS\mssecsvc.exe
Filesize
3.6MB

MD5
883c9282416c4b2cf418fbde83502b52

SHA1
3eefd8dc469a01c992241bd879202a7e9841b598

SHA256
fe2c8534a46d7fc3177c87912e725f05e09dc7739933c412d80bdde1f74dcdda

SHA512
081abae1ddea49b8aaac6f3b79387b297828a9c7d111672a96d840e2dd80f35d3d2625e0a8cdea25118befcc1d2e11638a509620f3cb1b4782ce8593a0c58983

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
883c9282416c4b2cf418fbde83502b52

SHA1
3eefd8dc469a01c992241bd879202a7e9841b598

SHA256
fe2c8534a46d7fc3177c87912e725f05e09dc7739933c412d80bdde1f74dcdda

SHA512
081abae1ddea49b8aaac6f3b79387b297828a9c7d111672a96d840e2dd80f35d3d2625e0a8cdea25118befcc1d2e11638a509620f3cb1b4782ce8593a0c58983

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
883c9282416c4b2cf418fbde83502b52

SHA1
3eefd8dc469a01c992241bd879202a7e9841b598

SHA256
fe2c8534a46d7fc3177c87912e725f05e09dc7739933c412d80bdde1f74dcdda

SHA512
081abae1ddea49b8aaac6f3b79387b297828a9c7d111672a96d840e2dd80f35d3d2625e0a8cdea25118befcc1d2e11638a509620f3cb1b4782ce8593a0c58983

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

MD5
913198f3e8dd9036ce5001f49b670fab

SHA1
f3db77750604a3c586544763630354e71825b736

SHA256
84101afa0756983f0274efab7890f377b22356281bdd236a4657844d958effb2

SHA512
098818ea840a28f33ff60af0f0fabe907cf5052c935192c7661ffdcbe06c015d6843c55fa9d5b02d7cdde6da447c9ec0018f7339ddaee494298bf61618000352

Download Submit
memory/2420-130-0x0000000000000000-mapping.dmp

Download
memory/4112-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads