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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
07/11/2024, 01:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe
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Size
3.6MB
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MD5
191e2562e453efa46b6d40c3db9e9473
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SHA1
ebbf2b24d12a5507de05993a54efd6b7c8577535
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SHA256
9d86f9e84ac0b12fa6c1ba8bc9da448cfa07f655e44ed27f0cefaf23c609c38a
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SHA512
3e2d08c102c3adf4114aaf72f13f66770029e5489fcfb0ed5f94dfc616c893fc531724e1066bcc8fe40f9f556af9989557c63a4869272f06288b497084137920
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SSDEEP
24576:bw317sPycp8nCB3Cj0p2PwNetqruoWCrHv/H859FuRanNP9ZzByfF2b3CknMfpbg:bByPnIM0p8IDzc5EUNP9locmVCJDa
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
resource yara_rule behavioral2/memory/5028-0-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/5028-1-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/5028-2-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/5028-3-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/5028-10-0x0000000140000000-0x000000014013E000-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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-11-07_191e2562e453efa46b6d40c3db9e9473_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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_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 6 api.ipify.org 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2984 set thread context of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_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 1592 cmd.exe 3472 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3472 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5028 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 5028 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5028 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Token: SeImpersonatePrivilege 5028 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 2984 wrote to memory of 5028 2984 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 83 PID 5028 wrote to memory of 1592 5028 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 92 PID 5028 wrote to memory of 1592 5028 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 92 PID 1592 wrote to memory of 3472 1592 cmd.exe 94 PID 1592 wrote to memory of 3472 1592 cmd.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Users\Admin\AppData\Local\Temp\2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-07_191e2562e453efa46b6d40c3db9e9473_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:5028 -
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\2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3472
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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