Analysis
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max time kernel
95s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-11-2024 13:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
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Size
3.6MB
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MD5
979f82f61cbec2d6a3612f31c48c1e68
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SHA1
dd201171c887c24563736d759e80ff4a804f6058
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SHA256
25bb8fb4cf7b57c2b1cea335f113ade65f33b5e797f1f5ce973ad4a9fd0d9cf6
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SHA512
93d52fbd30adce86789bda8b76361ee902f2813bf35d399c1ca3b6f035a7c300d2323b732b5926ffb4567043170a07465dd1f9a57e28bcaa2ec6d5169bc90cb5
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SSDEEP
24576:bw317sPycp8nCB3Cfk4B48vPEcGF5fKn3PT2lr/lmqeHsJpHLm5RUefngd1t0XQ1:bByPnICXr4Kf82ElmT7HA4pP8
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 5 IoCs
Processes:
resource yara_rule behavioral2/memory/3008-0-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3008-2-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3008-1-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3008-3-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3008-12-0x0000000140000000-0x000000014013E000-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:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exedescription pid process target process PID 3248 set thread context of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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:
PING.EXEcmd.exepid process 2076 PING.EXE 4476 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exepid process 3008 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 3008 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exedescription pid process Token: SeDebugPrivilege 3008 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe Token: SeImpersonatePrivilege 3008 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.execmd.exedescription pid process target process PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3248 wrote to memory of 3008 3248 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe PID 3008 wrote to memory of 4476 3008 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe cmd.exe PID 3008 wrote to memory of 4476 3008 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe cmd.exe PID 4476 wrote to memory of 2076 4476 cmd.exe PING.EXE PID 4476 wrote to memory of 2076 4476 cmd.exe PING.EXE -
outlook_office_path 1 IoCs
Processes:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3248 -
C:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_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:3008 -
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\2024-11-11_979f82f61cbec2d6a3612f31c48c1e68_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2076
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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