Analysis
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max time kernel
114s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-12-2024 15:38
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
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Size
3.1MB
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MD5
ad6acdfef8c43ce3cb36347d05ed3853
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SHA1
06b115c49269694ecbf49ec3bcb1298d385c315a
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SHA256
007b35ee7d490e9efcb6abd1114d049f44f0d09242309ee9f877e72ec7e87ff1
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SHA512
87078dfa525df65dff4d6e589d0f8412a3ec2c8d6c454464a56549f7508505c1fc6f5fa1b419cc8dee0e59fbaa6e941d9886021fd822522a2aa164fc7b9a2952
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SSDEEP
49152:u9HsRAKr2VC09l4gSZRYqEMzYoASz38hIt04:u
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
Santa
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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
true
Signatures
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Meduza Stealer payload 52 IoCs
resource yara_rule behavioral2/memory/1748-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-31-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-94-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-93-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/1748-98-0x0000000140000000-0x00000001401FA000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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 7 api.ipify.org 8 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4876 set thread context of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 -
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 1052 cmd.exe 4996 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4996 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1748 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 1748 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1748 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Token: SeImpersonatePrivilege 1748 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 4876 wrote to memory of 1748 4876 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 82 PID 1748 wrote to memory of 1052 1748 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 92 PID 1748 wrote to memory of 1052 1748 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 92 PID 1052 wrote to memory of 4996 1052 cmd.exe 94 PID 1052 wrote to memory of 4996 1052 cmd.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4876 -
C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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:1748 -
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\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1052 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4996
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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