Analysis Overview
SHA256
dc182d5c9b26e7f6c54df8b516cf3b4b3a66895c85100accdc7f3751c3c60a76
Threat Level: Known bad
The file 2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk was found to be: Known bad.
Malicious Activity Summary
Meduza Stealer payload
Meduza
Meduza family
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Checks installed software on the system
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Suspicious use of SetThreadContext
Browser Information Discovery
Unsigned PE
System Network Configuration Discovery: Internet Connection Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
outlook_win_path
outlook_office_path
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-06 17:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-06 17:22
Reported
2024-11-06 17:24
Platform
win7-20241010-en
Max time kernel
32s
Max time network
39s
Command Line
Signatures
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
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\cmd.exe | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Checks installed software on the system
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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2220 set thread context of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe |
Browser Information Discovery
System Network Configuration Discovery: Internet Connection 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 behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_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\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe"
C:\Windows\system32\PING.EXE
ping 1.1.1.1 -n 1 -w 3000
Network
| Country | Destination | Domain | Proto |
| NL | 62.60.217.17:15666 | 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 | 142.250.187.227:80 | c.pki.goog | tcp |
Files
memory/2296-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-8-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-10-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-11-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-7-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp
memory/2296-6-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-5-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-4-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-27-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2296-28-0x0000000140000000-0x000000014013E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-06 17:22
Reported
2024-11-06 17:24
Platform
win10v2004-20241007-en
Max time kernel
96s
Max time network
145s
Command Line
Signatures
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
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Checks installed software on the system
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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1260 set thread context of 4776 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe |
Browser Information Discovery
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection 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 behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_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\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe"
C:\Windows\system32\PING.EXE
ping 1.1.1.1 -n 1 -w 3000
Network
| Country | Destination | Domain | Proto |
| NL | 62.60.217.17:15666 | 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 | 17.217.60.62.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.13.26.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | c.pki.goog | 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 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 102.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/4776-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4776-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4776-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4776-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4776-12-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4776-13-0x0000000140000000-0x000000014013E000-memory.dmp