Analysis
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max time kernel
95s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-11-2024 09:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe
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Size
3.6MB
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MD5
82da7a7a39369c65c434bdf3e9ff04bc
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SHA1
239a6526857faaf632cc8b06663084004b8370ef
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SHA256
6b318607e1d44b5a87de5a9577045728cee8028ddc19de7309d87919368b7751
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SHA512
51d3c6bdf3863b86e956c2d13802414e08927dae5aaee0e9dc227198816141ee26a5d42ed38fded123614d5a16549e15d7ca0e7e7d09bc3a73d61bccf958d056
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SSDEEP
24576:wiSVYduVRYxf0fXRwSHYwC2xiS137KgliCcCwZV9fmCiUbZGkMv+NDxvjxs72qrY:0QusxfsGS4QxB1WqY9OmwfCvjW3k9p
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 5 IoCs
Processes:
resource yara_rule behavioral2/memory/3000-0-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3000-2-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3000-1-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3000-3-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/3000-10-0x0000000140000000-0x000000014013E000-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:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_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:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_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 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exedescription pid process target process PID 4116 set thread context of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe -
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 3872 cmd.exe 4220 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exepid process 3000 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 3000 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exedescription pid process Token: SeDebugPrivilege 3000 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe Token: SeImpersonatePrivilege 3000 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.execmd.exedescription pid process target process PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 4116 wrote to memory of 3000 4116 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe PID 3000 wrote to memory of 3872 3000 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe cmd.exe PID 3000 wrote to memory of 3872 3000 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe cmd.exe PID 3872 wrote to memory of 4220 3872 cmd.exe PING.EXE PID 3872 wrote to memory of 4220 3872 cmd.exe PING.EXE -
outlook_office_path 1 IoCs
Processes:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Users\Admin\AppData\Local\Temp\2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_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:3000 -
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\2024-11-11_82da7a7a39369c65c434bdf3e9ff04bc_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3872 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4220
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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