Analysis
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max time kernel
95s -
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
18-11-2024 01:53
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe
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Size
4.1MB
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MD5
26c0a059685857a931900e0c23730d19
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SHA1
74e476e3a3786e0e093203833021a37893be748d
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SHA256
ab54e04cbe76b72399e606caefdf90eb8f5664fc7a26ce00526d2eeee0daeecb
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SHA512
45bb68d2a0faff4ac1636a139af3b8cb4900818d8c5d70518dd4c48550ecc4ae1d8b83772092ff2fb3174306f01c3ef421efb9b43be94e5f15ede9d8fd212590
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SSDEEP
49152:qxGK0l3e3uZZYEXipNGMiqcc/neQEfLNQhpik3ywDPZ:qxGK09yuYZ
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
701
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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 40 IoCs
resource yara_rule behavioral2/memory/4436-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4436-62-0x0000000140000000-0x00000001401FA000-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 2024-11-18_26c0a059685857a931900e0c23730d19_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 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_26c0a059685857a931900e0c23730d19_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 2024-11-18_26c0a059685857a931900e0c23730d19_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 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 812 set thread context of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_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 1364 cmd.exe 2364 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2364 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4436 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 4436 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4436 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe Token: SeImpersonatePrivilege 4436 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 812 wrote to memory of 4436 812 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 82 PID 4436 wrote to memory of 1364 4436 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 92 PID 4436 wrote to memory of 1364 4436 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe 92 PID 1364 wrote to memory of 2364 1364 cmd.exe 94 PID 1364 wrote to memory of 2364 1364 cmd.exe 94 -
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 2024-11-18_26c0a059685857a931900e0c23730d19_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 2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:812 -
C:\Users\Admin\AppData\Local\Temp\2024-11-18_26c0a059685857a931900e0c23730d19_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-18_26c0a059685857a931900e0c23730d19_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:4436 -
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_26c0a059685857a931900e0c23730d19_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2364
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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