Analysis
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max time kernel
94s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-11-2024 12:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe
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Size
4.1MB
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MD5
815491ab4b5ee0858309954affce29d7
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SHA1
fa5e47712dae59b7505c0acf16f6c55325db73b6
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SHA256
481b2b2409df40c0a5be0f3798f447baad093fabd31d3560195f41980ce825c7
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SHA512
b7d6bd1880b5811624ad921465a263a4fc8aaa378fdb36c7dc122c3b9bbd88c9414f901fc4d0412f40ef01e6d505ee20498877f673120d10d27c3db77bc4e15f
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SSDEEP
49152:qxGK0l3e3u5PUSyy0e552cM5RDwVZohcRdB5VyYywpmdrch8hmZ:qxGK09yuxZ
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
686
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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/1012-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1012-100-0x0000000140000000-0x00000001401FA000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-11-15_815491ab4b5ee0858309954affce29d7_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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_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 2 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1312 set thread context of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 -
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 1488 cmd.exe 4880 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4880 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1012 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 1012 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1012 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe Token: SeImpersonatePrivilege 1012 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1312 wrote to memory of 1012 1312 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 84 PID 1012 wrote to memory of 1488 1012 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 93 PID 1012 wrote to memory of 1488 1012 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe 93 PID 1488 wrote to memory of 4880 1488 cmd.exe 95 PID 1488 wrote to memory of 4880 1488 cmd.exe 95 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Users\Admin\AppData\Local\Temp\2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-15_815491ab4b5ee0858309954affce29d7_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:1012 -
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\2024-11-15_815491ab4b5ee0858309954affce29d7_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1488 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4880
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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