Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2024 10:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
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Size
4.1MB
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MD5
a6a5175d334d452e5f7ecb4a7c59ccc7
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SHA1
8c57589c02d10dc60bb7ce3128b24bfc2a1c1824
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SHA256
98673dbe7eb9b78140a4e215e7f028ce40393371c39debd0fde5a37534c4b8c8
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SHA512
0655813b51b6f9dd009988319aa43f93a2a9c8d61f259cc76374361b2eff56ffe69370c40a4981757fedca8ebb5a41ddbe24ce495919272da74f6a61290fd50f
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SSDEEP
49152:qxGK0l3e3uPleujQuj+TLYC8ao9Q59nL/eMJEDq3+EoghZ:qxGK09yumZ
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
420
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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
resource yara_rule behavioral2/memory/3688-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-31-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-98-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3688-99-0x0000000140000000-0x00000001401FA000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_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 7 api.ipify.org 8 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4172 set thread context of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_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 3660 cmd.exe 3604 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3604 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3688 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 3688 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3688 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe Token: SeImpersonatePrivilege 3688 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 4172 wrote to memory of 3688 4172 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 83 PID 3688 wrote to memory of 3660 3688 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 98 PID 3688 wrote to memory of 3660 3688 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe 98 PID 3660 wrote to memory of 3604 3660 cmd.exe 100 PID 3660 wrote to memory of 3604 3660 cmd.exe 100 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe -
outlook_win_path 1 IoCs
description 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 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4172 -
C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_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:3688 -
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\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3660 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3604
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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