Analysis
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max time kernel
40s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 50 IoCs
resource yara_rule behavioral1/memory/2296-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-94-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2296-98-0x0000000140000000-0x00000001401FA000-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-1-5-21-3692679935-4019334568-335155002-1000\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-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\15.0\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 3 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2536 set thread context of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1792 PING.EXE 2676 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1792 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2296 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2296 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe Token: SeImpersonatePrivilege 2296 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2536 wrote to memory of 2296 2536 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 29 PID 2296 wrote to memory of 2676 2296 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 31 PID 2296 wrote to memory of 2676 2296 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 31 PID 2296 wrote to memory of 2676 2296 2024-11-20_90c14181e9bee65d191c48fc9381bb38_ryuk.exe 31 PID 2676 wrote to memory of 1792 2676 cmd.exe 33 PID 2676 wrote to memory of 1792 2676 cmd.exe 33 PID 2676 wrote to memory of 1792 2676 cmd.exe 33 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\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-1-5-21-3692679935-4019334568-335155002-1000\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:2536 -
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:2296 -
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:2676 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1792
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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