Malware Analysis Report

2025-01-03 08:38

Sample ID 241202-mgd82awphr
Target bad_rhy_mayb.exe
SHA256 250e81eeb4df4649ccb13e271ae3f80d44995b2f8ffca7a2c5e1c738546c2ab1
Tags
rhysida ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

250e81eeb4df4649ccb13e271ae3f80d44995b2f8ffca7a2c5e1c738546c2ab1

Threat Level: Known bad

The file bad_rhy_mayb.exe was found to be: Known bad.

Malicious Activity Summary

rhysida ransomware

Detect Rhysida ransomware

Rhysida family

Rhysida

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-12-02 10:25

Signatures

Detect Rhysida ransomware

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

Rhysida family

rhysida

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-02 10:25

Reported

2024-12-02 10:28

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe"

Signatures

Detect Rhysida ransomware

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

Rhysida

ransomware rhysida

Rhysida family

rhysida

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2092 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe C:\Windows\system32\WerFault.exe
PID 2092 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe C:\Windows\system32\WerFault.exe
PID 2092 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe

"C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2092 -s 72

Network

N/A

Files

memory/2092-0-0x0000000000400000-0x0000000000523000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-02 10:25

Reported

2024-12-02 10:28

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe"

Signatures

Detect Rhysida ransomware

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

Rhysida

ransomware rhysida

Rhysida family

rhysida

Processes

C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe

"C:\Users\Admin\AppData\Local\Temp\bad_rhy_mayb.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 98.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 17.173.189.20.in-addr.arpa udp

Files

memory/736-0-0x0000000000400000-0x0000000000523000-memory.dmp