Analysis Overview
SHA256
f80085e505e9cec02266687e45f20d7d6f73bf95978921f375bb37cac9745cf1
Threat Level: Known bad
The file 2024-11-07_cdaa83e8fda8718deb7197cea179dce2_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
Enumerates physical storage devices
Unsigned PE
System Network Configuration Discovery: Internet Connection Discovery
outlook_office_path
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
outlook_win_path
Suspicious use of WriteProcessMemory
Runs ping.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 09:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-07 09:38
Reported
2024-11-07 09:41
Platform
win7-20240903-en
Max time kernel
118s
Max time network
118s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2548 wrote to memory of 1808 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe |
| PID 2548 wrote to memory of 1808 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe |
| PID 2548 wrote to memory of 1808 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 09:38
Reported
2024-11-07 09:41
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
152s
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\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_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 2124 set thread context of 3648 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_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_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_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_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
| Token: SeImpersonatePrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe"
C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_ryuk.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-07_cdaa83e8fda8718deb7197cea179dce2_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_cdaa83e8fda8718deb7197cea179dce2_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 | 104.26.13.205:443 | api.ipify.org | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 162.181.107.109.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.13.26.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.187.227:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.117.168.52.in-addr.arpa | udp |
Files
memory/3648-1-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3648-0-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3648-2-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3648-3-0x0000000140000000-0x000000014013E000-memory.dmp
memory/3648-12-0x0000000140000000-0x000000014013E000-memory.dmp