Analysis
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max time kernel
95s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18-11-2024 01:55
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe
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Size
4.1MB
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MD5
1e8c2c514e077c11e8517a7b83c70e1a
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SHA1
84185a8560b366bf0f2e0f4ac8de084e36205085
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SHA256
82c254b9b56dc718bf407190a1da8da69eada2aad11303e853b867c2fff9cbd2
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SHA512
c445923b40ebe08429dfbb068f48869c1fa45412cf198ab2e65ed9c2b0d8d2572012d8a6cf46ba3f0cc3f71127f7e5059e27fab3aec84dd1cf59a5d17ba51448
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SSDEEP
49152:qxGK0l3e3u35um6SuIGgWyLEYBL8lQh9vToHBwpeesE2BvJ7rjqL5alz6Z:qxGK09yuRZ
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
701
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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
Processes:
resource yara_rule behavioral2/memory/1756-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-100-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1756-101-0x0000000140000000-0x00000001401FA000-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:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_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:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription pid Process procid_target PID 4588 set thread context of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_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.
Processes:
cmd.exePING.EXEpid Process 4504 cmd.exe 4948 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exepid Process 1756 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 1756 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription pid Process Token: SeDebugPrivilege 1756 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Token: SeImpersonatePrivilege 1756 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.execmd.exedescription pid Process procid_target PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 4588 wrote to memory of 1756 4588 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 83 PID 1756 wrote to memory of 4504 1756 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 93 PID 1756 wrote to memory of 4504 1756 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 93 PID 4504 wrote to memory of 4948 4504 cmd.exe 95 PID 4504 wrote to memory of 4948 4504 cmd.exe 95 -
outlook_office_path 1 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4588 -
C:\Users\Admin\AppData\Local\Temp\2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_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:1756 -
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\2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4504 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4948
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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