Analysis
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max time kernel
122s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 47 IoCs
Processes:
resource yara_rule behavioral1/memory/2576-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2576-92-0x0000000140000000-0x00000001401FA000-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-1-5-21-1846800975-3917212583-2893086201-1000\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-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\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 6 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 3028 set thread context of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_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 852 cmd.exe 2668 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exepid Process 2576 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription pid Process Token: SeDebugPrivilege 2576 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe Token: SeImpersonatePrivilege 2576 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.execmd.exedescription pid Process procid_target PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 3028 wrote to memory of 2576 3028 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 30 PID 2576 wrote to memory of 852 2576 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 32 PID 2576 wrote to memory of 852 2576 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 32 PID 2576 wrote to memory of 852 2576 2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exe 32 PID 852 wrote to memory of 2668 852 cmd.exe 34 PID 852 wrote to memory of 2668 852 cmd.exe 34 PID 852 wrote to memory of 2668 852 cmd.exe 34 -
outlook_office_path 1 IoCs
Processes:
2024-11-18_1e8c2c514e077c11e8517a7b83c70e1a_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\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-1-5-21-1846800975-3917212583-2893086201-1000\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:3028 -
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:2576 -
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:852 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2668
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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