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Analysis
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max time kernel
32s -
max time network
40s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 8 IoCs
resource yara_rule behavioral1/memory/2736-10-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-11-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-8-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-6-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-5-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-3-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-4-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral1/memory/2736-27-0x0000000140000000-0x000000014013E000-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-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\International\Geo\Nation 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe -
Deletes itself 1 IoCs
pid Process 3064 cmd.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-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2256 set thread context of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 -
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 2816 PING.EXE 3064 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2816 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2736 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2736 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe Token: SeImpersonatePrivilege 2736 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2256 wrote to memory of 2736 2256 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 30 PID 2736 wrote to memory of 3064 2736 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 32 PID 2736 wrote to memory of 3064 2736 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 32 PID 2736 wrote to memory of 3064 2736 2024-11-07_191e2562e453efa46b6d40c3db9e9473_ryuk.exe 32 PID 3064 wrote to memory of 2816 3064 cmd.exe 34 PID 3064 wrote to memory of 2816 3064 cmd.exe 34 PID 3064 wrote to memory of 2816 3064 cmd.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\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-1-5-21-3692679935-4019334568-335155002-1000\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:2256 -
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:2736 -
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⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3064 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2816
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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