Analysis
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max time kernel
94s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14/11/2024, 09:52
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe
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Size
3.6MB
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MD5
75e9af53e8805c4f9f7441011cbadb12
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SHA1
6b839d3149b6e7cc73f5b62caaf365285f4aee0f
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SHA256
1e9873f8c0e11c4b908c8b16b0d47210135b4630b49e8ce8bbf20839110c13bd
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SHA512
8ede62d9032fc50c9db013e5326f3274eba613b17013aba5e209a366b0f1e56881a3f7f72719e84066d2004e65ea67c1420125d05a8d1781286d0f97af6449e4
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SSDEEP
24576:wiSVYduVRYxf0fXRnNja/RghhH6BVZnDnO/xPIYIvwG31eEzjuOckJSVudo0qPRM:0Qusxfsw5vZmPIfbaORpIM5JJK/M7p
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
37
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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 47 IoCs
resource yara_rule behavioral2/memory/4700-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4700-96-0x0000000140000000-0x00000001401FA000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_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 6 api.ipify.org 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2564 set thread context of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_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 1676 cmd.exe 1392 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1392 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4700 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 4700 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4700 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe Token: SeImpersonatePrivilege 4700 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 2564 wrote to memory of 4700 2564 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 84 PID 4700 wrote to memory of 1676 4700 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 98 PID 4700 wrote to memory of 1676 4700 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe 98 PID 1676 wrote to memory of 1392 1676 cmd.exe 100 PID 1676 wrote to memory of 1392 1676 cmd.exe 100 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2564 -
C:\Users\Admin\AppData\Local\Temp\2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-14_75e9af53e8805c4f9f7441011cbadb12_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:4700 -
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\2024-11-14_75e9af53e8805c4f9f7441011cbadb12_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1392
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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