Analysis Overview
SHA256
25bb8fb4cf7b57c2b1cea335f113ade65f33b5e797f1f5ce973ad4a9fd0d9cf6
Threat Level: Known bad
The file 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk was found to be: Known bad.
Malicious Activity Summary
Meduza Stealer payload
Meduza
Meduza family
Reads user/profile data of web browsers
Checks computer location settings
Deletes itself
Looks up external IP address via web service
Checks installed software on the system
Accesses Microsoft Outlook profiles
Suspicious use of SetThreadContext
Browser Information Discovery
Unsigned PE
System Network Configuration Discovery: Internet Connection Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of AdjustPrivilegeToken
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 13:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 13:22
Reported
2024-11-11 13:24
Platform
win7-20240729-en
Max time kernel
118s
Max time network
118s
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 |
Meduza family
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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| 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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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 2500 set thread context of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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_979f82f61cbec2d6a3612f31c48c1e68_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 | 104.26.12.205:443 | api.ipify.org | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.187.227:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| US | 23.192.22.93:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.22:80 | crl.microsoft.com | tcp |
Files
memory/2108-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-6-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-10-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-11-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-8-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-7-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp
memory/2108-5-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-4-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2108-25-0x0000000140000000-0x000000014013E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 13:22
Reported
2024-11-11 13:24
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
139s
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 |
Meduza family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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 3248 set thread context of 3008 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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\PING.EXE | N/A |
| N/A | N/A | C:\Windows\System32\cmd.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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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_979f82f61cbec2d6a3612f31c48c1e68_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 | 172.67.74.152:443 | 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 | 162.181.107.109.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.74.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.209.201.84.in-addr.arpa | udp |
| GB | 142.250.200.3:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 3.200.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.208.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 66.208.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
memory/3008-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3008-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3008-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3008-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3008-12-0x0000000140000000-0x000000014013E000-memory.dmp