Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19-11-2024 01:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe
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Size
4.1MB
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MD5
12c13fbc1cb91f08144e44c5ed0f350c
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SHA1
accc1f7ea8be71ff2b5126d9c68d8b36a1be9afb
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SHA256
ea802b3b7bb8e2c558e14d6a946231dfa0f22e746e622296ce60babd10511f9f
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SHA512
c4f93dd2129ae77fd5810d623ec55f16448738bf7b4b324d4a4a5530ff4f0dbe639fb7c23d7216b96b08171f28e86852ee859b2cde3a12023b2c10555405fe91
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SSDEEP
49152:/xGK0l3e3uHuDgMhX32D/jzt2yd6CWw2Krd+S5rVWgpTZ:/xGK09yuFZ
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
84
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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 48 IoCs
Processes:
resource yara_rule behavioral1/memory/2352-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2352-90-0x0000000140000000-0x00000001401FA000-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.
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\International\Geo\Nation 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_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
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_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.
Processes:
flow ioc 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription pid Process procid_target PID 2668 set thread context of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
Processes:
cmd.exePING.EXEpid Process 2792 cmd.exe 576 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exepid Process 2352 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription pid Process Token: SeDebugPrivilege 2352 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Token: SeImpersonatePrivilege 2352 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.execmd.exedescription pid Process procid_target PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2668 wrote to memory of 2352 2668 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 30 PID 2352 wrote to memory of 2792 2352 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 33 PID 2352 wrote to memory of 2792 2352 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 33 PID 2352 wrote to memory of 2792 2352 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 33 PID 2792 wrote to memory of 576 2792 cmd.exe 35 PID 2792 wrote to memory of 576 2792 cmd.exe 35 PID 2792 wrote to memory of 576 2792 cmd.exe 35 -
outlook_office_path 1 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Users\Admin\AppData\Local\Temp\2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_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:2352 -
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_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2792 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:576
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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