Analysis
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max time kernel
95s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18-11-2024 01:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe
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Size
3.6MB
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MD5
2c4c10262e5593b2959b865f24ebfced
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SHA1
b648bbac2c6d612080a0e3500d93cdfb05dead95
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SHA256
cfd16c5e23c09bc2eb0cc56bc13dd480b5aec86e5a077e2e1a81251b8f58e467
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SHA512
71b346c1c31c8bb2ef52176669765fdaeee7c02483109587e2a7583561d8439bcc8b38df9cf297b1b2611f70d097cd807bc79dba07137e4e2af9864518816638
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SSDEEP
49152:7+suA+uKb6Ji8yiW93rZMVmEM0jGiCzED:7Xu5u
Malware Config
Extracted
meduza
127.0.0.1
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anti_dbg
true
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anti_vm
true
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build_name
Meduza
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extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite;.kdbx
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grabber_max_size
4.194304e+06
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port
15666
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self_destruct
false
Signatures
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Meduza Stealer payload 46 IoCs
resource yara_rule behavioral2/memory/2340-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-3-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-30-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2340-40-0x0000000140000000-0x00000001401FA000-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 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe -
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 2024-11-18_2c4c10262e5593b2959b865f24ebfced_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 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-18_2c4c10262e5593b2959b865f24ebfced_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 12 api.ipify.org 13 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 364 set thread context of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2340 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 2340 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2340 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe Token: SeImpersonatePrivilege 2340 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 PID 364 wrote to memory of 2340 364 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe 83 -
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 2024-11-18_2c4c10262e5593b2959b865f24ebfced_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 2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:364 -
C:\Users\Admin\AppData\Local\Temp\2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-18_2c4c10262e5593b2959b865f24ebfced_ryuk.exe2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2340
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