Analysis
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max time kernel
146s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-11-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
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Size
4.1MB
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MD5
21d65d2084afc22c1bd35c189267b6bc
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SHA1
281e6c35c9753b4153590bd798bc98f670a837d3
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SHA256
39e05855169379fd9a0710b68a5bc7a07bf8d5579587aaef3bab08d170adb35a
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SHA512
04be8a8f97aa693aeadd326aa0e513f707be3fa21af4d2ea491435cc485af68dff2b800e205a83fe4dc57628b6ec1efb693d0c96af5369b276abde08b100b961
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SSDEEP
49152:qxGK0l3e3uY1SLWM8ae2kJjAIrc4kSFIK9k/kW9ZrV7xCcxyRY4WsZ:qxGK09yuCZ
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
700
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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/2568-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-94-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-98-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2568-99-0x0000000140000000-0x00000001401FA000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_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 9 api.ipify.org 10 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4632 set thread context of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 -
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 924 cmd.exe 4032 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4032 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2568 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 2568 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2568 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Token: SeImpersonatePrivilege 2568 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 4632 wrote to memory of 2568 4632 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 83 PID 2568 wrote to memory of 924 2568 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 103 PID 2568 wrote to memory of 924 2568 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 103 PID 924 wrote to memory of 4032 924 cmd.exe 105 PID 924 wrote to memory of 4032 924 cmd.exe 105 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4632 -
C:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_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:2568 -
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\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4032
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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