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Analysis
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max time kernel
94s -
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
13/11/2024, 11:21
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe
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Size
3.6MB
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MD5
3da22d90988ed7b3a961d22e52f5498b
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SHA1
0b0298188af15b4c34acd08da12b8c421195adad
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SHA256
1b049bc468078e596e854f1c301ac979022e015eb21551f9cca0a5ea2531beb2
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SHA512
e6322364022b1581f1041c0ca54af9a95b336f651e29b3a6c36910e9f969d7ecd7dda1d9bca4c287dcbc06f30551a10f37073489755025f62704dbfebf721015
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SSDEEP
49152:0Qusxfs8mjuprXqhPD7wU2ElD/2IQ4MpFnPqckT90p:5hp
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 46 IoCs
resource yara_rule behavioral2/memory/3304-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-30-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3304-96-0x0000000140000000-0x00000001401FA000-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 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_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\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_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 3 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2892 set thread context of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_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 4352 cmd.exe 4536 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4536 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3304 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 3304 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3304 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe Token: SeImpersonatePrivilege 3304 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 2892 wrote to memory of 3304 2892 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 83 PID 3304 wrote to memory of 4352 3304 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 102 PID 3304 wrote to memory of 4352 3304 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe 102 PID 4352 wrote to memory of 4536 4352 cmd.exe 104 PID 4352 wrote to memory of 4536 4352 cmd.exe 104 -
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 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_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 2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Users\Admin\AppData\Local\Temp\2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-13_3da22d90988ed7b3a961d22e52f5498b_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:3304 -
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\2024-11-13_3da22d90988ed7b3a961d22e52f5498b_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4352 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4536
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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