wannacry | 9dff446dd66f69115dda623bcb49e0a1b9783e3de4e57ab4c48d321ff316434c

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2022 02:56

Target

eabf61ab167036bf6e32f50b1d10a51d.dll
Size

5.0MB
MD5

eabf61ab167036bf6e32f50b1d10a51d
SHA1

add487c25487367c3a403226c5551660ae8e920a
SHA256

9dff446dd66f69115dda623bcb49e0a1b9783e3de4e57ab4c48d321ff316434c
SHA512

fea2744c57963cbd84646c0446d2321e6d76c85c6d5c055c1f7ed1faf656027fa1f6ac0ae8f0b02580d31ab79103cabd86f30ea753a2e58039f85384e4401497

Score

10^/10

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2656) 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 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid process

1864 mssecsvc.exe
2864 mssecsvc.exe
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
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

pid	process
1864	mssecsvc.exe
2864	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 5 IoCs

Processes:

mssecsvc.exe

description	ioc	process
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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 3516 wrote to memory of 1532	3516	rundll32.exe	rundll32.exe
PID 3516 wrote to memory of 1532	3516	rundll32.exe	rundll32.exe
PID 3516 wrote to memory of 1532	3516	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 1864	1532	rundll32.exe	mssecsvc.exe
PID 1532 wrote to memory of 1864	1532	rundll32.exe	mssecsvc.exe
PID 1532 wrote to memory of 1864	1532	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\eabf61ab167036bf6e32f50b1d10a51d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3516

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\WINDOWS\mssecsvc.exe

Filesize
2.2MB

MD5
453981758a472ec2417fbd6fdaeca54e

SHA1
b2d041ecec85c236cb863cc02ed159b437873d40

SHA256
3e7a41ad9487f6e3f11c1cc194b9914a9013a019ccb639406f7c02fd1b19e9ee

SHA512
daa7ae15c04d0c376976dd9f36a0faa5dca66ece5e93a9a463aff02a03bb57ad6aa2b88aced9824d3987cb03bf357012c3fbb2e6decfad0bd997ebed2e8b88b7

Download Submit
C:\Windows\mssecsvc.exe

Filesize
2.2MB

MD5
453981758a472ec2417fbd6fdaeca54e

SHA1
b2d041ecec85c236cb863cc02ed159b437873d40

SHA256
3e7a41ad9487f6e3f11c1cc194b9914a9013a019ccb639406f7c02fd1b19e9ee

SHA512
daa7ae15c04d0c376976dd9f36a0faa5dca66ece5e93a9a463aff02a03bb57ad6aa2b88aced9824d3987cb03bf357012c3fbb2e6decfad0bd997ebed2e8b88b7

Download Submit
C:\Windows\mssecsvc.exe

Filesize
2.2MB

MD5
453981758a472ec2417fbd6fdaeca54e

SHA1
b2d041ecec85c236cb863cc02ed159b437873d40

SHA256
3e7a41ad9487f6e3f11c1cc194b9914a9013a019ccb639406f7c02fd1b19e9ee

SHA512
daa7ae15c04d0c376976dd9f36a0faa5dca66ece5e93a9a463aff02a03bb57ad6aa2b88aced9824d3987cb03bf357012c3fbb2e6decfad0bd997ebed2e8b88b7

Download Submit
memory/1532-130-0x0000000000000000-mapping.dmp

Download
memory/1864-131-0x0000000000000000-mapping.dmp

Download