wannacry | 81451be49a0f49705f540f7a5df5cc7c517707fbf05a1a21ac0e21196f2aaa14

Analysis

max time kernel
151s
max time network
153s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
20-07-2022 01:26

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General

Target

f70f68367735a050c124c5207ac02577.dll
Size

5.0MB
MD5

f70f68367735a050c124c5207ac02577
SHA1

3e8691a6f0c5deda912d934a508af20a148d4e42
SHA256

81451be49a0f49705f540f7a5df5cc7c517707fbf05a1a21ac0e21196f2aaa14
SHA512

e88ace89016210be8685502f275bdc489254d18bdcf95e15b218edc2b8b69bb623eacd91e40b9dc0338a27d004b66b4a91017479eb066944bfcc1a35fa57681c

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1269) 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

1516 mssecsvc.exe
1060 mssecsvc.exe
1720 tasksche.exe

pid	process
1516	mssecsvc.exe
1060	mssecsvc.exe
1720	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

mssecsvc.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	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
Modifies data under HKEY_USERS 1 IoCs

Processes:

mssecsvc.exe

description ioc process

Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe

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

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

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 1860	2032	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 1516	1860	rundll32.exe	mssecsvc.exe
PID 1860 wrote to memory of 1516	1860	rundll32.exe	mssecsvc.exe
PID 1860 wrote to memory of 1516	1860	rundll32.exe	mssecsvc.exe
PID 1860 wrote to memory of 1516	1860	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f70f68367735a050c124c5207ac02577.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f70f68367735a050c124c5207ac02577.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1860

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1516

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1720

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1060

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
66d159460436eb200fe82ee514ce75dc

SHA1
ef21bef5bd534926fc5f94beea0bb13d6765c011

SHA256
7d9177998b5e99dbd63b88018af909266a889305a07bf17b3218c022d65ee8bd

SHA512
fdd7c181fa773188d262f96b95934834ab0c34b7d7c97740241677de4d035214fd6fb2ab41acf5dcb0ed717e729eb14c5dfc614e176d0229a59e3b495a381bd3

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

MD5
66d159460436eb200fe82ee514ce75dc

SHA1
ef21bef5bd534926fc5f94beea0bb13d6765c011

SHA256
7d9177998b5e99dbd63b88018af909266a889305a07bf17b3218c022d65ee8bd

SHA512
fdd7c181fa773188d262f96b95934834ab0c34b7d7c97740241677de4d035214fd6fb2ab41acf5dcb0ed717e729eb14c5dfc614e176d0229a59e3b495a381bd3

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

MD5
66d159460436eb200fe82ee514ce75dc

SHA1
ef21bef5bd534926fc5f94beea0bb13d6765c011

SHA256
7d9177998b5e99dbd63b88018af909266a889305a07bf17b3218c022d65ee8bd

SHA512
fdd7c181fa773188d262f96b95934834ab0c34b7d7c97740241677de4d035214fd6fb2ab41acf5dcb0ed717e729eb14c5dfc614e176d0229a59e3b495a381bd3

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

MD5
59d6ca62efb5b9d9d31b5738a3ca908c

SHA1
42c4c7ccf2ae1017b8251adda9d17581ceb71da1

SHA256
c2390a36df3c0d5d34424f50ebaefa4faba1cff6f2332e510291b05de49a79e3

SHA512
1c570111aeb2b7edc616e8c9ab714200a8d5219e5ec21365ca2fb04db4bf7322238ffc5f0ac521ace9f416aad67358d3f6c533e21d34efc82ea5bb5a3d86526a

Download Submit
memory/1516-56-0x0000000000000000-mapping.dmp

Download
memory/1860-54-0x0000000000000000-mapping.dmp

Download
memory/1860-55-0x0000000075A81000-0x0000000075A83000-memory.dmp

Filesize
8KB

Download