Analysis Overview
SHA256
3bf9143cb56f6f414b6a97c36bb0d85faaf5800eed96b82d8e344a39f5d6c25d
Threat Level: Known bad
The file 2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk was found to be: Known bad.
Malicious Activity Summary
Meduza Stealer payload
Meduza family
Meduza
Checks computer location settings
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-06 14:37
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-06 14:37
Reported
2024-11-06 14:39
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
136s
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4376 set thread context of 3184 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe
Network
| Country | Destination | Domain | Proto |
| NL | 89.22.239.174:15666 | tcp | |
| US | 8.8.8.8:53 | 70.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/3184-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3184-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3184-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3184-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3184-4-0x0000000140000000-0x000000014013E000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-06 14:37
Reported
2024-11-06 14:39
Platform
win7-20240903-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2356 wrote to memory of 1952 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe |
| PID 2356 wrote to memory of 1952 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe |
| PID 2356 wrote to memory of 1952 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_91b2d45daae10e1bf5348028f3785581_ryuk.exe