wannacry | 178fe955a6c0412daaf5a36485281a168ab40df284b451dad6c84043a6a5c0d6

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 01:13

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General

Target

bbe2afa97b110302be0e9e52be6d6f64.dll
Size

5.0MB
MD5

bbe2afa97b110302be0e9e52be6d6f64
SHA1

e46ddb727ba325e31940cccb1b36d385aed7a716
SHA256

178fe955a6c0412daaf5a36485281a168ab40df284b451dad6c84043a6a5c0d6
SHA512

c42ad5ed9e8a61ef54c23be342101bf443cd155a5975ada6f253254491efad9d630664fc932ae9e6d5f86c58011998931076003b0ad50d6eb5ccd0944ad9fa83

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3252) 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

4660 mssecsvc.exe
2196 mssecsvc.exe
1116 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:

mssecsvc.exerundll32.exe

description ioc process

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

pid	process
4660	mssecsvc.exe
2196	mssecsvc.exe
1116	tasksche.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 620 wrote to memory of 2336	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2336	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2336	620	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 4660	2336	rundll32.exe	mssecsvc.exe
PID 2336 wrote to memory of 4660	2336	rundll32.exe	mssecsvc.exe
PID 2336 wrote to memory of 4660	2336	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbe2afa97b110302be0e9e52be6d6f64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbe2afa97b110302be0e9e52be6d6f64.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2336

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:4660

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1116

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
PID:2196

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\WINDOWS\mssecsvc.exe
Filesize
3.6MB

MD5
ee521250e09469441951e0525349070b

SHA1
30c0f52ced45273a2eb4c425aa2537f2cf0434c2

SHA256
273685e728bd39d0597f32579dc98262dee0811dbf3cc69e109face6f898e1f3

SHA512
b8dab73a2a6b6977138b2c78cbcab54c87d63b6eb80bd20cbf46df36611099bd11018d863c541aa8e2f50a4935f1dcc374dd765dc9b8e72b2d4d23ba9dc64c42

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

MD5
ee521250e09469441951e0525349070b

SHA1
30c0f52ced45273a2eb4c425aa2537f2cf0434c2

SHA256
273685e728bd39d0597f32579dc98262dee0811dbf3cc69e109face6f898e1f3

SHA512
b8dab73a2a6b6977138b2c78cbcab54c87d63b6eb80bd20cbf46df36611099bd11018d863c541aa8e2f50a4935f1dcc374dd765dc9b8e72b2d4d23ba9dc64c42

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

MD5
ee521250e09469441951e0525349070b

SHA1
30c0f52ced45273a2eb4c425aa2537f2cf0434c2

SHA256
273685e728bd39d0597f32579dc98262dee0811dbf3cc69e109face6f898e1f3

SHA512
b8dab73a2a6b6977138b2c78cbcab54c87d63b6eb80bd20cbf46df36611099bd11018d863c541aa8e2f50a4935f1dcc374dd765dc9b8e72b2d4d23ba9dc64c42

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

MD5
f75ccfcc8fde211afcd7c0fbb87d3b74

SHA1
23b4793ab44814c53cc0f86e10978b1ac09236c4

SHA256
0e789b3bd7a770c0c77c354bd5b848cffaf38f1ffde622cb5b47cda14c59b2a2

SHA512
43c81a0bbbcf54eb84c11f4ba886a3e118e02570995ab6861d3e7a4784e88dca783f5c3a80d8be97c47a442c244ad1f557d5fcd637f2347acfd0a7c1e6c4c3b3

Download Submit
memory/2336-130-0x0000000000000000-mapping.dmp

Download
memory/4660-131-0x0000000000000000-mapping.dmp

Download