Analysis
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max time kernel
134s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
06-11-2024 06:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe
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Size
3.6MB
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MD5
2bd4345fb9942af619751c63586b9aad
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SHA1
53fb33b06c9790b26a4c779baf32374cecb00e7f
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SHA256
8d73947fdf76541b7eac9a3f92d0ed7b284090dd899170a4f918fc73acfd16e6
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SHA512
e6f027fb44812ffa7cd3f28b804b8d26360cfa03066740c7936b6fd9e2632ce6c0dba5e5592022e5c2e5cdda8fa2ac92eb7c389fb4a0f7e12952c75a7647f416
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SSDEEP
24576:bw317sPycp8nCB3C44dibAicm2sbeKSwFawOT1pi/5Ycx46KHsjr2YQsXCdbpFO9:bByPnI7yiPcE3y4+ckhTJFzg
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
424
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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 6 IoCs
resource yara_rule behavioral2/memory/1092-0-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/1092-2-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/1092-1-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/1092-3-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/1092-12-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/1092-13-0x0000000140000000-0x000000014013E000-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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-11-06_2bd4345fb9942af619751c63586b9aad_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 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-06_2bd4345fb9942af619751c63586b9aad_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 2024-11-06_2bd4345fb9942af619751c63586b9aad_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 2140 set thread context of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 -
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 1572 PING.EXE 3604 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1572 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1092 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 1092 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1092 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe Token: SeImpersonatePrivilege 1092 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 2140 wrote to memory of 1092 2140 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 86 PID 1092 wrote to memory of 3604 1092 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 96 PID 1092 wrote to memory of 3604 1092 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe 96 PID 3604 wrote to memory of 1572 3604 cmd.exe 99 PID 3604 wrote to memory of 1572 3604 cmd.exe 99 -
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 2024-11-06_2bd4345fb9942af619751c63586b9aad_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 2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Users\Admin\AppData\Local\Temp\2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-06_2bd4345fb9942af619751c63586b9aad_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:1092 -
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\2024-11-06_2bd4345fb9942af619751c63586b9aad_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1572
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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