Analysis Overview
SHA256
122fc376c799e673542d418dc29d0fec04e8e4762f71a65f69338cbf5afb01d4
Threat Level: Known bad
The file 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk was found to be: Known bad.
Malicious Activity Summary
Meduza family
Meduza Stealer payload
Meduza
Checks computer location settings
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
Checks installed software on the system
Looks up external IP address via web service
Suspicious use of SetThreadContext
Browser Information Discovery
Unsigned PE
outlook_win_path
Suspicious use of WriteProcessMemory
outlook_office_path
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-16 16:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-16 16:29
Reported
2024-11-16 16:31
Platform
win7-20240903-en
Max time kernel
121s
Max time network
121s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2872 wrote to memory of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe |
| PID 2872 wrote to memory of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe |
| PID 2872 wrote to memory of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-16 16:29
Reported
2024-11-16 16:31
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
146s
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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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 3940 set thread context of 4408 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe |
Browser Information Discovery
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| 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 | 133.130.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.145.130.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.13.26.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.201.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/3940-0-0x00007FF66A700000-0x00007FF66A701000-memory.dmp
memory/4408-5-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4408-4-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4408-6-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4408-7-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4408-14-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4408-15-0x0000000140000000-0x000000014013E000-memory.dmp