Analysis
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max time kernel
94s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-11-2024 01:28
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 behavioral2/memory/2244-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-101-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-100-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-104-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2244-105-0x0000000140000000-0x00000001401FA000-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-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\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 3 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription pid Process procid_target PID 2220 set thread context of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 -
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:
PING.EXEcmd.exepid Process 3884 PING.EXE 4072 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exepid Process 2244 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 2244 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription pid Process Token: SeDebugPrivilege 2244 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe Token: SeImpersonatePrivilege 2244 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.execmd.exedescription pid Process procid_target PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2220 wrote to memory of 2244 2220 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 84 PID 2244 wrote to memory of 4072 2244 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 103 PID 2244 wrote to memory of 4072 2244 2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exe 103 PID 4072 wrote to memory of 3884 4072 cmd.exe 105 PID 4072 wrote to memory of 3884 4072 cmd.exe 105 -
outlook_office_path 1 IoCs
Processes:
2024-11-19_12c13fbc1cb91f08144e44c5ed0f350c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\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:2220 -
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:2244 -
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:4072 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3884
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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