Malware Analysis Report

2024-09-11 01:44

Sample ID 230425-q89e2aaf96
Target d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe
SHA256 2491ddaa3afe4cf65bbd6f35588bb8e72e561e32d532ee2eea893e1d545268c2
Tags
yanluowang
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2491ddaa3afe4cf65bbd6f35588bb8e72e561e32d532ee2eea893e1d545268c2

Threat Level: Known bad

The file d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe was found to be: Known bad.

Malicious Activity Summary

yanluowang

Detects Yanluowang ransomware

Yanluowang family

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2023-04-25 13:57

Signatures

Detects Yanluowang ransomware

Description Indicator Process Target
N/A N/A N/A N/A

Yanluowang family

yanluowang

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-25 13:57

Reported

2023-04-25 13:59

Platform

win7-20230220-en

Max time kernel

31s

Max time network

34s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1304 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe C:\Windows\SysWOW64\WerFault.exe
PID 1304 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe C:\Windows\SysWOW64\WerFault.exe
PID 1304 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe C:\Windows\SysWOW64\WerFault.exe
PID 1304 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe

"C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 124

Network

N/A

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2023-04-25 13:57

Reported

2023-04-25 13:59

Platform

win10v2004-20230221-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe

"C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3684 -ip 3684

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 356

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 52.152.110.14:443 tcp
US 104.208.16.90:443 tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 52.152.110.14:443 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-25 13:57

Reported

2023-04-25 13:59

Platform

win10-20230220-en

Max time kernel

101s

Max time network

104s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe

"C:\Users\Admin\AppData\Local\Temp\d11793433065633b84567de403c1989640a07c9a399dd2753aaf118891ce791c-patched.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 524

Network

Country Destination Domain Proto
US 8.8.8.8:53 52.4.107.13.in-addr.arpa udp
US 52.182.143.208:443 tcp
NL 84.53.175.11:80 tcp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
US 93.184.220.29:80 tcp

Files

N/A