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
30-12-2024 01:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe
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Size
3.1MB
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MD5
8a22ce5556ad5616fb1e6bc833e98b3c
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SHA1
ffd3e2ff7a4dc46b58783a60dbe80ca9706318b9
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SHA256
dd030f49d69a154e37e6287b0359ff7a19fd336a8352cc07dc4acb3c3641e7c7
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SHA512
9c37cb5939fb442684976a143a15d8633eed7e3fa9a4e3c44ca8a9d2b6420ae9a660b2c10da1921c200fd168489546c87004dcc19677de9b652d2ef855376088
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SSDEEP
24576:qiils10EyDGbEbXLmTVpREQl/18LphqeVX9batzh3QCzjXuBL+Yn:UG1SmTxflcWNmf
Malware Config
Extracted
meduza
147.45.44.216
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anti_dbg
true
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anti_vm
true
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build_name
424
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grabber_max_size
1.048576e+06
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port
15666
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self_destruct
true
Signatures
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Meduza Stealer payload 6 IoCs
resource yara_rule behavioral2/memory/2128-0-0x0000000140000000-0x000000014013F000-memory.dmp family_meduza behavioral2/memory/2128-2-0x0000000140000000-0x000000014013F000-memory.dmp family_meduza behavioral2/memory/2128-3-0x0000000140000000-0x000000014013F000-memory.dmp family_meduza behavioral2/memory/2128-1-0x0000000140000000-0x000000014013F000-memory.dmp family_meduza behavioral2/memory/2128-12-0x0000000140000000-0x000000014013F000-memory.dmp family_meduza behavioral2/memory/2128-13-0x0000000140000000-0x000000014013F000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1624 set thread context of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_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 3328 cmd.exe 3944 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3944 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2128 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 2128 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2128 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe Token: SeImpersonatePrivilege 2128 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 1624 wrote to memory of 2128 1624 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 83 PID 2128 wrote to memory of 3328 2128 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 85 PID 2128 wrote to memory of 3328 2128 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe 85 PID 3328 wrote to memory of 3944 3328 cmd.exe 87 PID 3328 wrote to memory of 3944 3328 cmd.exe 87 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Users\Admin\AppData\Local\Temp\2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_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:2128 -
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\2024-12-30_8a22ce5556ad5616fb1e6bc833e98b3c_cobalt-strike_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3944
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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