Analysis
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max time kernel
148s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 02:00
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe
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Size
4.1MB
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MD5
90c14181e9bee65d191c48fc9381bb38
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SHA1
96de27947b44ced1235bd4a9056faacb90e29fc1
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SHA256
fc6b3d0fda8a1186ced0cc17ec78dbb932cd009d2fb9483b0b933ec1f94268bc
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SHA512
3c5ab51be541924a11a01421b779224506f9a2da4e964c81bde53d66004dcfc751b59cad93e2f6620a9dcf82abfe2bdd7406fbbc60ba9c067a97d82e788fb35d
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SSDEEP
49152:/xGK0l3e3uJtP5T/VCOotM46vP3SBbyKYjuBdfKs/PNlAZ:/xGK09yu/Z
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
754
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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/3032-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-93-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-100-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-103-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3032-104-0x0000000140000000-0x00000001401FA000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 2024-11-20_90c14181e9bee65d191c48fc9381bb38_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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_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 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4892 set thread context of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_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 1380 PING.EXE 3856 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1380 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3032 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 3032 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3032 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Token: SeImpersonatePrivilege 3032 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 4892 wrote to memory of 3032 4892 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 83 PID 3032 wrote to memory of 3856 3032 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 105 PID 3032 wrote to memory of 3856 3032 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 105 PID 3856 wrote to memory of 1380 3856 cmd.exe 107 PID 3856 wrote to memory of 1380 3856 cmd.exe 107 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4892 -
C:\Users\Admin\AppData\Local\Temp\2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-20_90c14181e9bee65d191c48fc9381bb38_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:3032 -
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\2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3856 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1380
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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