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
09-12-2024 01:58
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe
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Size
4.1MB
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MD5
e755c5290033aa89a9a7277fe311fe8a
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SHA1
a39b3013081332222d75fcb3ce0bed2710c50f1d
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SHA256
c9c30d0cc68bff295257d298e3cdcf2e24f13d1bbcd363efe8c7e18a23aa54d6
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SHA512
8f5cfaee881556a62981df49da11c08de2751dfaecfafeb92478f456a276054df98f3b9e47ded755472043417ccadb9e768d06a803f4857b887d29fb8e76f1d2
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SSDEEP
49152:Xl4UjB0jUuzLH5H0SpimE2bn+Z6srZ3+kQjh/IA:14UjKguCA
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
782
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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 42 IoCs
resource yara_rule behavioral1/memory/2448-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2448-86-0x0000000140000000-0x00000001401FA000-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-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\International\Geo\Nation 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe -
Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_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 2316 set thread context of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_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 1288 PING.EXE 1464 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1288 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2448 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2448 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Token: SeImpersonatePrivilege 2448 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2316 wrote to memory of 2448 2316 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 30 PID 2448 wrote to memory of 1464 2448 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 32 PID 2448 wrote to memory of 1464 2448 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 32 PID 2448 wrote to memory of 1464 2448 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 32 PID 1464 wrote to memory of 1288 1464 cmd.exe 34 PID 1464 wrote to memory of 1288 1464 cmd.exe 34 PID 1464 wrote to memory of 1288 1464 cmd.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Users\Admin\AppData\Local\Temp\2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe"2⤵
- 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:2448 -
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\2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1464 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1288
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