Analysis
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max time kernel
94s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-11-2024 17:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe
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Size
3.6MB
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MD5
866a8c337594137e62d19aad596f5f98
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SHA1
42c663ccc4b5b695289bd9c622ed78fbb0c03f7d
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SHA256
301d598b303d98504b8247036a6c30945be86ab1499fb564eb3180edb035dad6
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SHA512
6fa839874a1abff6682883ea67e0ec1843c44300cc7a23d149921bacb9efbef4186d2598d6442e1aba30a95ca93ca67e4df14b3665b81a347e6417d540507ec4
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SSDEEP
49152:0Qusxfsa6NLq4TsxdIlgEnYKRopwAh1Ruy25gjvxPmdjAeTMA8p:51p
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
445
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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/528-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-30-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-31-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-94-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/528-98-0x0000000140000000-0x00000001401FA000-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 2024-11-12_866a8c337594137e62d19aad596f5f98_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\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-12_866a8c337594137e62d19aad596f5f98_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 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-12_866a8c337594137e62d19aad596f5f98_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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1508 set thread context of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_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 4468 PING.EXE 4556 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4468 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 528 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 528 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 528 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe Token: SeImpersonatePrivilege 528 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 1508 wrote to memory of 528 1508 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 83 PID 528 wrote to memory of 4556 528 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 100 PID 528 wrote to memory of 4556 528 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe 100 PID 4556 wrote to memory of 4468 4556 cmd.exe 103 PID 4556 wrote to memory of 4468 4556 cmd.exe 103 -
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 2024-11-12_866a8c337594137e62d19aad596f5f98_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 2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Users\Admin\AppData\Local\Temp\2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-12_866a8c337594137e62d19aad596f5f98_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:528 -
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\2024-11-12_866a8c337594137e62d19aad596f5f98_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4468
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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