Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 41 IoCs
resource yara_rule behavioral2/memory/3552-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-98-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3552-49-0x0000000140000000-0x00000001401FA000-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-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\15.0\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 21 api.ipify.org 22 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2244 set thread context of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_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 2940 PING.EXE 4028 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2940 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3552 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 3552 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3552 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe Token: SeImpersonatePrivilege 3552 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 2244 wrote to memory of 3552 2244 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 83 PID 3552 wrote to memory of 4028 3552 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 99 PID 3552 wrote to memory of 4028 3552 2024-12-09_e755c5290033aa89a9a7277fe311fe8a_ryuk.exe 99 PID 4028 wrote to memory of 2940 4028 cmd.exe 101 PID 4028 wrote to memory of 2940 4028 cmd.exe 101 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\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:2244 -
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:3552 -
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:4028 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2940
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