Analysis
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max time kernel
94s -
max time network
146s -
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 16:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
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Size
4.1MB
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MD5
23c48ef9af21ef0c23b973d91cc6a74c
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SHA1
9ded62e253c887fcd369e4454a8eab99c558ca01
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SHA256
122fc376c799e673542d418dc29d0fec04e8e4762f71a65f69338cbf5afb01d4
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SHA512
e7cead3f1977e41b39672e2e38b4b22dc2ddc5a314eb42aed98544d485e528cdc55165506b188cb7b3b79c1d3e46d3099261d2ed023792060375b4fcb3497372
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SSDEEP
24576:9Smpzi3xGi50W+Zdel5ubbFJePhI7dyPxbOePKV/if1+Oj/ypy8r4qkFGotaEpmy:qxGK0l3e3utIPW2i4XjuXYXDCiZ
Malware Config
Extracted
meduza
45.130.145.152
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anti_dbg
true
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anti_vm
true
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build_name
Seo
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extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite
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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 6 IoCs
Processes:
resource yara_rule behavioral2/memory/4408-5-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/4408-4-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/4408-6-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/4408-7-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/4408-14-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/4408-15-0x0000000140000000-0x000000014013E000-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.
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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.
Processes:
flow ioc 7 api.ipify.org 8 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription pid process target process PID 3940 set thread context of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exepid process 4408 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 4408 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription pid process Token: SeDebugPrivilege 4408 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe Token: SeImpersonatePrivilege 4408 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription pid process target process PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe PID 3940 wrote to memory of 4408 3940 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe -
outlook_office_path 1 IoCs
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exedescription 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 2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3940 -
C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4408
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