Analysis
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max time kernel
94s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16-11-2024 09:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
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Size
3.6MB
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MD5
1dcc07eb97d4c4f32abd4666dfd142f1
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SHA1
57b1dd27cb92ddd3c980be825e63d0d0cdbb9d1a
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SHA256
d24a318bf92e09537597a99368482fe4733719db4cda72adf3f05e15a729325c
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SHA512
1e47a286851b1f717d3ff827694577ebd56d2512bb9f099309155f323dc7b19d6115d2066d6d9630d637435acc019b622bf163e7fb8797a88e5ebc27d891f512
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SSDEEP
49152:0QusxfslDDkEOnTyApUINfVkPEs4MscSPEamK3g62RXbhrp:5sp
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
684
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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 46 IoCs
resource yara_rule behavioral2/memory/4752-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4752-96-0x0000000140000000-0x00000001401FA000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_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 3424 set thread context of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_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.
pid Process 3168 cmd.exe 1832 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1832 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4752 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 4752 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4752 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Token: SeImpersonatePrivilege 4752 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 3424 wrote to memory of 4752 3424 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 84 PID 4752 wrote to memory of 3168 4752 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 91 PID 4752 wrote to memory of 3168 4752 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 91 PID 3168 wrote to memory of 1832 3168 cmd.exe 93 PID 3168 wrote to memory of 1832 3168 cmd.exe 93 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3424 -
C:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_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:4752 -
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\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3168 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1832
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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