Analysis Overview
SHA256
c34ec4d2e496f8e6e77b3b99cf3302756d447966f1d0d1795fac13f7d352e2eb
Threat Level: Known bad
The file 2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk was found to be: Known bad.
Malicious Activity Summary
Meduza
Meduza Stealer payload
Meduza family
Checks computer location settings
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-06 14:42
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-06 14:42
Reported
2024-11-06 14:45
Platform
win7-20240903-en
Max time kernel
118s
Max time network
119s
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 |
Meduza family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2140 set thread context of 2644 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe
Network
| Country | Destination | Domain | Proto |
| NL | 89.22.239.174:15666 | tcp |
Files
memory/2644-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-8-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-10-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-11-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-7-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp
memory/2644-6-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-5-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-4-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/2644-0-0x0000000140000000-0x000000014013E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-06 14:42
Reported
2024-11-06 14:45
Platform
win10v2004-20241007-en
Max time kernel
94s
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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4288 set thread context of 4468 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_a99d506cddadbf72ddd915a667760a72_ryuk.exe
Network
| Country | Destination | Domain | Proto |
| NL | 89.22.239.174:15666 | tcp | |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/4468-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4468-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4468-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4468-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/4468-4-0x0000000140000000-0x000000014013E000-memory.dmp