Analysis
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max time kernel
94s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2024, 18:53
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe
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Size
4.1MB
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MD5
aadab0e43197811ebe759f2451bc5cc9
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SHA1
7ecb1b358ff68999f7327d611eddd64bd8f4e07f
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SHA256
c465af29bd51e00e48a32ac6fc4d6497f6fbf0d4e9f6220824cb15ff58b94787
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SHA512
73f1520090690545d43ba06f52c777c63af0cdf3773ddbf310153cb039151aec2abd5efcbb08aeafe4ad7a48d48b91fdd3456ff10afbab1f78064186e3504aca
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SSDEEP
49152:Xl4UjB0jUuKHhIVk/XsUbNJpNX2QIkFxwgUzaOFyNWA:14UjKguHA
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
228
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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 45 IoCs
resource yara_rule behavioral2/memory/3704-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-100-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3704-101-0x0000000140000000-0x00000001401FA000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_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 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2388 set thread context of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 -
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 1404 cmd.exe 872 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 872 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3704 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 3704 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3704 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe Token: SeImpersonatePrivilege 3704 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 2388 wrote to memory of 3704 2388 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 82 PID 3704 wrote to memory of 1404 3704 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 88 PID 3704 wrote to memory of 1404 3704 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe 88 PID 1404 wrote to memory of 872 1404 cmd.exe 90 PID 1404 wrote to memory of 872 1404 cmd.exe 90 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2388 -
C:\Users\Admin\AppData\Local\Temp\2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe"2⤵
- 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:3704 -
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\2024-11-29_aadab0e43197811ebe759f2451bc5cc9_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:872
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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