Analysis Overview
SHA256
a39cb2c31b6724eaa78f60fe29ced83e50ffad7e39efd604a7debdac63a2a80e
Threat Level: Known bad
The file 2024-11-19_42a5c60fadb3b94505babe3561507a50_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
2024-11-19 02:02
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-19 02:02
Reported
2024-11-19 02:04
Platform
win7-20240903-en
Max time kernel
15s
Max time network
16s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 880 wrote to memory of 2652 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe |
| PID 880 wrote to memory of 2652 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe |
| PID 880 wrote to memory of 2652 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-19 02:02
Reported
2024-11-19 02:04
Platform
win10v2004-20241007-en
Max time kernel
92s
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 |
Meduza family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4588 set thread context of 3480 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-19_42a5c60fadb3b94505babe3561507a50_ryuk.exe
Network
| Country | Destination | Domain | Proto |
| RU | 193.3.19.151:15666 | tcp | |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
Files
memory/4588-0-0x00007FF6F4390000-0x00007FF6F4391000-memory.dmp
memory/3480-4-0x0000000140000000-0x0000000140141000-memory.dmp
memory/3480-5-0x0000000140000000-0x0000000140141000-memory.dmp
memory/3480-6-0x0000000140000000-0x0000000140141000-memory.dmp
memory/3480-7-0x0000000140000000-0x0000000140141000-memory.dmp