Malware Analysis Report

2024-11-30 20:41

Sample ID 241116-nvvcvavmf1
Target 2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk
SHA256 d50b80a0e1296ef71cdec5c310f6312f95a20b4792d3d943c16e70890015dcd2
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

d50b80a0e1296ef71cdec5c310f6312f95a20b4792d3d943c16e70890015dcd2

Threat Level: Known bad

The file 2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk was found to be: Known bad.

Malicious Activity Summary

meduza collection discovery spyware stealer

Meduza

Meduza Stealer payload

Meduza family

Reads user/profile data of web browsers

Checks computer location settings

Accesses Microsoft Outlook profiles

Checks installed software on the system

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Browser Information Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

Suspicious behavior: EnumeratesProcesses

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-16 11:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-16 11:43

Reported

2024-11-16 11:46

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_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
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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_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-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 2848 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

Network

Country Destination Domain Proto
BE 45.130.145.152:15666 tcp
US 8.8.8.8:53 api.ipify.org udp
US 172.67.74.152:443 api.ipify.org tcp
US 8.8.8.8:53 c.pki.goog udp
GB 216.58.201.99:80 c.pki.goog tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 88.221.134.83:80 crl.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
GB 95.100.245.144:80 www.microsoft.com tcp

Files

memory/2212-0-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-3-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-8-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-10-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-5-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-6-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-4-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-11-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-2-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-1-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-7-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

memory/2212-27-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2212-28-0x0000000140000000-0x000000014013E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-16 11:43

Reported

2024-11-16 11:46

Platform

win10v2004-20241007-en

Max time kernel

135s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe
PID 3828 wrote to memory of 1688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-16_8d24a655a027b37ed44dfabc1868cf03_ryuk.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
BE 45.130.145.152:15666 tcp
US 8.8.8.8:53 api.ipify.org udp
US 104.26.12.205:443 api.ipify.org tcp
US 8.8.8.8:53 c.pki.goog udp
GB 216.58.201.99:80 c.pki.goog tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 152.145.130.45.in-addr.arpa udp
US 8.8.8.8:53 205.12.26.104.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 99.201.58.216.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 85.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 8.179.89.13.in-addr.arpa udp

Files

memory/1688-3-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1688-2-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1688-1-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1688-0-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1688-10-0x0000000140000000-0x000000014013E000-memory.dmp

memory/1688-11-0x0000000140000000-0x000000014013E000-memory.dmp