Malware Analysis Report

2024-11-15 08:45

Sample ID 241111-t1j2yszqgw
Target 2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk
SHA256 365c6bf29ff892f1999570a5c37c7aaa82189f25414e3a3aafa9a806c224194e
Tags
meduza collection discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

365c6bf29ff892f1999570a5c37c7aaa82189f25414e3a3aafa9a806c224194e

Threat Level: Known bad

The file 2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk was found to be: Known bad.

Malicious Activity Summary

meduza collection discovery spyware stealer

Meduza family

Meduza Stealer payload

Meduza

Checks computer location settings

Reads user/profile data of web browsers

Checks installed software on the system

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

System Network Configuration Discovery: Internet Connection Discovery

Enumerates physical storage devices

Unsigned PE

Browser Information Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

outlook_win_path

outlook_office_path

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 16:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 16:31

Reported

2024-11-11 16:33

Platform

win7-20241023-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 16:31

Reported

2024-11-11 16:34

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe"

Signatures

Meduza

stealer meduza

Meduza Stealer payload

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

Meduza family

meduza

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A

Checks installed software on the system

discovery

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Browser Information Discovery

discovery

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\System32\cmd.exe N/A
N/A N/A C:\Windows\system32\PING.EXE N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 3996 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe
PID 1516 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Windows\System32\cmd.exe
PID 1516 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe C:\Windows\System32\cmd.exe
PID 2232 wrote to memory of 4616 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\PING.EXE
PID 2232 wrote to memory of 4616 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\PING.EXE

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\2024-11-11_8c82122d164f7f1529a012963ba3b74b_ryuk.exe"

C:\Windows\system32\PING.EXE

ping 1.1.1.1 -n 1 -w 3000

Network

Country Destination Domain Proto
DE 109.107.181.162:15666 tcp
US 8.8.8.8:53 api.ipify.org udp
US 104.26.13.205:443 api.ipify.org tcp
US 8.8.8.8:53 c.pki.goog udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 162.181.107.109.in-addr.arpa udp
US 8.8.8.8:53 205.13.26.104.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
GB 142.250.187.227:80 c.pki.goog tcp
US 8.8.8.8:53 227.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/1516-0-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1516-1-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1516-2-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1516-3-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1516-12-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1516-13-0x0000000140000000-0x000000014013E000-memory.dmp