Analysis
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max time kernel
92s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 02:03
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe
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Size
4.1MB
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MD5
aa3c7b344a5530af4fe0bcb144abd43c
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SHA1
511d4295767b735cd2680de4cf08cba827e4b88f
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SHA256
544120fc34f30c6f20acee1d179009a6523ddab6fe41042611dbd742c8e636bf
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SHA512
247135a19aa034043047f43ac822c5754579baa3f2ec46418e590a23eb84fc527d6f3f58fbae73e995a58b4d3780f078686d60e57c660b823ae6eb211fad10c8
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SSDEEP
49152:qxGK0l3e3uoOg15XgLIcT9xacX+pGTt4yy2NtvyNM2R6oZ:qxGK09yuAZ
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
424
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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
resource yara_rule behavioral2/memory/4168-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-102-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4168-103-0x0000000140000000-0x00000001401FA000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_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 5 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3832 set thread context of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_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 4484 cmd.exe 1284 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1284 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4168 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 4168 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4168 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe Token: SeImpersonatePrivilege 4168 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 3832 wrote to memory of 4168 3832 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 83 PID 4168 wrote to memory of 4484 4168 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 100 PID 4168 wrote to memory of 4484 4168 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe 100 PID 4484 wrote to memory of 1284 4484 cmd.exe 102 PID 4484 wrote to memory of 1284 4484 cmd.exe 102 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Users\Admin\AppData\Local\Temp\2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-20_aa3c7b344a5530af4fe0bcb144abd43c_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:4168 -
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_aa3c7b344a5530af4fe0bcb144abd43c_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4484 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1284
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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