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
24-11-2024 09:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe
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Size
4.1MB
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MD5
fe53abd09ec3e1bc8b9e028a616cce14
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SHA1
bc994988e23ade721da8297db07f3cc3c3498855
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SHA256
86d17835e8af2dc82a502bc4ce78d6703a38ca6e77ec3593821f36dcb99e5a4c
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SHA512
2d3d546dd4fcc7c2cdb7ba00aac6744eede2c04f77d8c597127e634b5782342efbf44eb7ec535658eb182aac3bf3944478ebe548c2d9d452b17c5c411a316d26
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SSDEEP
49152:qxGK0l3e3uOxpnwa/DI8AmYZLSX9Yg+zkVkF9qXhdW4DTAn5m5kBKQy3fyZlVuZF:qxGK09yuYZL
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
592
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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 47 IoCs
resource yara_rule behavioral2/memory/3672-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-100-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3672-101-0x0000000140000000-0x00000001401FA000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_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 6 api.ipify.org 8 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2140 set thread context of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_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 4952 cmd.exe 4452 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4452 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3672 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 3672 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3672 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe Token: SeImpersonatePrivilege 3672 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 2140 wrote to memory of 3672 2140 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 83 PID 3672 wrote to memory of 4952 3672 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 95 PID 3672 wrote to memory of 4952 3672 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe 95 PID 4952 wrote to memory of 4452 4952 cmd.exe 97 PID 4952 wrote to memory of 4452 4952 cmd.exe 97 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Users\Admin\AppData\Local\Temp\2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe2⤵
- 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:3672 -
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\2024-11-24_fe53abd09ec3e1bc8b9e028a616cce14_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4452
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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