wannacry | 2024554e986424694456a50e8fe058bc9e9de98c98f52b55728a506b9235fc09

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 01:17

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General

Target

24890a20e1bc62bdc614946c8a761647.dll
Size

5.0MB
MD5

24890a20e1bc62bdc614946c8a761647
SHA1

0087d697ef8cbbe166a93ebb78bc367af964b309
SHA256

2024554e986424694456a50e8fe058bc9e9de98c98f52b55728a506b9235fc09
SHA512

107ea65bbf71bb937906e85e101803fa297c3e945052c0defc6b073f669f31aa29d21d1fd1201aff072277c91f1edf3b04ee12475329c2e45dcd6be26394b6f9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3288) 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 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

3436 mssecsvc.exe
4672 mssecsvc.exe
4032 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 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
3436	mssecsvc.exe
4672	mssecsvc.exe
4032	tasksche.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 3044 wrote to memory of 4116	3044	rundll32.exe	rundll32.exe
PID 3044 wrote to memory of 4116	3044	rundll32.exe	rundll32.exe
PID 3044 wrote to memory of 4116	3044	rundll32.exe	rundll32.exe
PID 4116 wrote to memory of 3436	4116	rundll32.exe	mssecsvc.exe
PID 4116 wrote to memory of 3436	4116	rundll32.exe	mssecsvc.exe
PID 4116 wrote to memory of 3436	4116	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\24890a20e1bc62bdc614946c8a761647.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\24890a20e1bc62bdc614946c8a761647.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4116

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3436

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:4032

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
PID:4672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\WINDOWS\mssecsvc.exe
Filesize
3.6MB

MD5
8cc6e364f21798e30d468ce7b2207bfd

SHA1
ea7618c7a0690ac4299c9e68a43f9fe5bf0619ad

SHA256
967a7c41ff141fed8f7f6f3d75c852eceebdd74a7b7f762d953bedb479e7ef65

SHA512
9b4c913a6db6d4366b69823a43c228e21b29dfbe6d30abbf750c63a4541edd02813a7226695f9e6606121c4008f1d51734c0d8d385a83d6983db2878a84fb4cf

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

MD5
8cc6e364f21798e30d468ce7b2207bfd

SHA1
ea7618c7a0690ac4299c9e68a43f9fe5bf0619ad

SHA256
967a7c41ff141fed8f7f6f3d75c852eceebdd74a7b7f762d953bedb479e7ef65

SHA512
9b4c913a6db6d4366b69823a43c228e21b29dfbe6d30abbf750c63a4541edd02813a7226695f9e6606121c4008f1d51734c0d8d385a83d6983db2878a84fb4cf

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

MD5
8cc6e364f21798e30d468ce7b2207bfd

SHA1
ea7618c7a0690ac4299c9e68a43f9fe5bf0619ad

SHA256
967a7c41ff141fed8f7f6f3d75c852eceebdd74a7b7f762d953bedb479e7ef65

SHA512
9b4c913a6db6d4366b69823a43c228e21b29dfbe6d30abbf750c63a4541edd02813a7226695f9e6606121c4008f1d51734c0d8d385a83d6983db2878a84fb4cf

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

MD5
b31db4319492b5d1e6d037b46ea5485d

SHA1
7d33315752e2515070ce7ba59bcc72e770884217

SHA256
237eea16a01fa6c4811b4fe220595ac695efcea7085971af770226fcc2be44e4

SHA512
f6b162123ebdae127e4dcdfffe7d22d06c3303cd0fd2a485ba38e2e40e26d40788193268b4ffcba4f66a906300dab8e8bae61ce10aee955d5c38dfa06a57679a

Download Submit
memory/3436-131-0x0000000000000000-mapping.dmp

Download
memory/4116-130-0x0000000000000000-mapping.dmp

Download