Analysis Overview
SHA256
2c502b3c1f644848ab35b0234b6687794aa59eeec64df7f20d82870d223f0708
Threat Level: Known bad
The file 2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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
Looks up external IP address via web service
Checks installed software on the system
Accesses Microsoft Outlook profiles
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Browser Information Discovery
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
outlook_win_path
Suspicious behavior: EnumeratesProcesses
outlook_office_path
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 08:03
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-07 08:03
Reported
2024-11-07 08:06
Platform
win7-20241010-en
Max time kernel
121s
Max time network
125s
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-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| 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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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 564 set thread context of 1612 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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 |
| GB | 142.250.187.227:80 | c.pki.goog | tcp |
Files
memory/1612-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-8-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-7-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp
memory/1612-11-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-6-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-5-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-4-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-10-0x0000000140000000-0x000000014013E000-memory.dmp
memory/1612-27-0x0000000140000000-0x000000014013E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 08:03
Reported
2024-11-07 08:06
Platform
win10v2004-20241007-en
Max time kernel
91s
Max time network
140s
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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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 4456 set thread context of 3152 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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\2024-11-07_36f5bfe08c2fb0f5385835e2020729f8_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 | 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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.187.195:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
Files
memory/3152-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3152-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3152-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3152-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3152-12-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3152-13-0x0000000140000000-0x000000014013E000-memory.dmp