Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18-11-2024 02:18
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe
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Size
4.1MB
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MD5
b3450b609d12e41f5e7482b7fcecbaf1
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SHA1
99e91e22ff71e651cb6453437d15dae74f3d9c8e
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SHA256
ab76439d232ce9d53c8de49a5546c63666a4327fcb49477a8ae3dda69653e928
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SHA512
f6dab8b9bda25aa2d1ba9062ec9c9bd38f27a7835bb4af9d629c7b9ec6c0928dc50310a107694e97c60c189ddb2558e604693fc2a11da1307c96a3752ef0c279
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SSDEEP
49152:qxGK0l3e3uxB6FwwtJzPOfvjO9k4FgU4f/DRlP/ABnIhCqoaIR+Z:qxGK09yuVZ
Malware Config
Extracted
meduza
109.107.181.162
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anti_dbg
true
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anti_vm
true
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build_name
665
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extensions
none
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grabber_max_size
1.048576e+06
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links
none
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port
15666
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self_destruct
true
Signatures
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Meduza Stealer payload 48 IoCs
Processes:
resource yara_rule behavioral2/memory/3980-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-102-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3980-103-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza -
Meduza family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exedescription pid process target process PID 1724 set thread context of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
Processes:
cmd.exePING.EXEpid process 3240 cmd.exe 3732 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exepid process 3980 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 3980 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exedescription pid process Token: SeDebugPrivilege 3980 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe Token: SeImpersonatePrivilege 3980 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.execmd.exedescription pid process target process PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 1724 wrote to memory of 3980 1724 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe PID 3980 wrote to memory of 3240 3980 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe cmd.exe PID 3980 wrote to memory of 3240 3980 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe cmd.exe PID 3240 wrote to memory of 3732 3240 cmd.exe PING.EXE PID 3240 wrote to memory of 3732 3240 cmd.exe PING.EXE -
outlook_office_path 1 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Users\Admin\AppData\Local\Temp\2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3980 -
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\2024-11-18_b3450b609d12e41f5e7482b7fcecbaf1_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3240 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3732
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1