Analysis
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max time kernel
95s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-11-2024 02:05
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe
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Size
4.1MB
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MD5
b30ffdedd61002e0aaf294ab8664299b
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SHA1
12def3ab85ea51b48a341b97983178fe7bbb6477
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SHA256
e6aae65a7234ce0aca5b9db5513dda64b8496ea53f82dbe3e16e4e7d4adceba7
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SHA512
062a090b52951de90af246b0ed89e50a225d70e7c38f38778dd236c09743b337f45036e52d58722fd43a9e53305842fccd309f3eac8f9346cad5cea1b4f8cc83
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SSDEEP
49152:qxGK0l3e3uLEpwZnlD3pJsnmwtnBPF3/GF9sWY4WS2gOZ:qxGK09yuwZ
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
703
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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 46 IoCs
resource yara_rule behavioral2/memory/1560-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1560-100-0x0000000140000000-0x00000001401FA000-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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_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.
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3700 set thread context of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 -
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.
pid Process 3352 cmd.exe 4968 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4968 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1560 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 1560 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1560 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe Token: SeImpersonatePrivilege 1560 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 3700 wrote to memory of 1560 3700 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 83 PID 1560 wrote to memory of 3352 1560 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 98 PID 1560 wrote to memory of 3352 1560 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe 98 PID 3352 wrote to memory of 4968 3352 cmd.exe 100 PID 3352 wrote to memory of 4968 3352 cmd.exe 100 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3700 -
C:\Users\Admin\AppData\Local\Temp\2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-19_b30ffdedd61002e0aaf294ab8664299b_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:1560 -
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\2024-11-19_b30ffdedd61002e0aaf294ab8664299b_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3352 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4968
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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