Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19-11-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
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Size
4.1MB
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MD5
21d65d2084afc22c1bd35c189267b6bc
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SHA1
281e6c35c9753b4153590bd798bc98f670a837d3
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SHA256
39e05855169379fd9a0710b68a5bc7a07bf8d5579587aaef3bab08d170adb35a
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SHA512
04be8a8f97aa693aeadd326aa0e513f707be3fa21af4d2ea491435cc485af68dff2b800e205a83fe4dc57628b6ec1efb693d0c96af5369b276abde08b100b961
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SSDEEP
49152:qxGK0l3e3uY1SLWM8ae2kJjAIrc4kSFIK9k/kW9ZrV7xCcxyRY4WsZ:qxGK09yuCZ
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
700
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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 behavioral1/memory/2120-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2120-93-0x0000000140000000-0x00000001401FA000-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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
Deletes itself 1 IoCs
pid Process 2968 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-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_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 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2156 set thread context of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2968 cmd.exe 3016 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3016 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2120 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2120 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe Token: SeImpersonatePrivilege 2120 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2156 wrote to memory of 2120 2156 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 30 PID 2120 wrote to memory of 2968 2120 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 33 PID 2120 wrote to memory of 2968 2120 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 33 PID 2120 wrote to memory of 2968 2120 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe 33 PID 2968 wrote to memory of 3016 2968 cmd.exe 35 PID 2968 wrote to memory of 3016 2968 cmd.exe 35 PID 2968 wrote to memory of 3016 2968 cmd.exe 35 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2156 -
C:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-19_21d65d2084afc22c1bd35c189267b6bc_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:2120 -
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_21d65d2084afc22c1bd35c189267b6bc_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3016
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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