Malware Analysis Report

2024-11-30 20:51

Sample ID 241116-tc9ygayje1
Target 2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk
SHA256 93626f2a12a4ab1fbe7e284af0a3368c4041e58428f18429acc64d3f09067a29
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

93626f2a12a4ab1fbe7e284af0a3368c4041e58428f18429acc64d3f09067a29

Threat Level: Known bad

The file 2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk was found to be: Known bad.

Malicious Activity Summary

meduza collection discovery spyware stealer

Meduza Stealer payload

Meduza family

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

Browser Information Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

outlook_office_path

outlook_win_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-16 15:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-16 15:55

Reported

2024-11-16 15:58

Platform

win7-20240729-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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-1-5-21-2703099537-420551529-3771253338-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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_dd0b9382bc7d77840b168800bc8cb812_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_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 1916 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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 104.26.13.205:443 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 www.microsoft.com udp
GB 184.25.193.234:80 www.microsoft.com tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 88.221.134.83:80 crl.microsoft.com tcp

Files

memory/2892-2-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-5-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-11-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-13-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-14-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-9-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

memory/2892-8-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-7-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-6-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-4-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-3-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-28-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2892-29-0x0000000140000000-0x000000014013E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-16 15:55

Reported

2024-11-16 15:58

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
PID 868 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_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 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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 152.145.130.45.in-addr.arpa udp
US 8.8.8.8:53 152.74.67.172.in-addr.arpa udp
US 8.8.8.8:53 181.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 99.201.58.216.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp

Files

memory/868-0-0x00007FF6F20A0000-0x00007FF6F20A1000-memory.dmp

memory/2524-4-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2524-6-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2524-7-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2524-5-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2524-16-0x0000000140000000-0x000000014013E000-memory.dmp

memory/2524-17-0x0000000140000000-0x000000014013E000-memory.dmp