Analysis
-
max time kernel
98s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14/11/2024, 10:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe
Resource
win10v2004-20241007-en
General
-
Target
2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe
-
Size
3.6MB
-
MD5
cdcb4b576b99e4e45435ab668a3e2c3f
-
SHA1
ebf3346f2b8ab837312162b83ede0069b87d0d83
-
SHA256
3660e4410b30baf9b2524270cf65625994a0754dff65b6a93504187e621629ab
-
SHA512
1472007bc918ce1ec907a0b0467f4fc9fe24e0d9a1e29456760eaaed012dc3c012aafbceda3183abb4a90b3270578174088fe9abc4f0f70eb1069d11a96d2773
-
SSDEEP
49152:0QusxfsqFOUWID9kvsL/i4PapITlqlKl3V9IMXMMkr8zpVKo9aXnp:50p
Malware Config
Extracted
meduza
109.107.181.162
-
anti_dbg
true
-
anti_vm
true
-
build_name
420
-
extensions
none
-
grabber_max_size
1.048576e+06
-
links
none
-
port
15666
-
self_destruct
true
Signatures
-
Meduza Stealer payload 46 IoCs
resource yara_rule behavioral2/memory/2028-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/2028-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza -
Meduza family
-
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2576 set thread context of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2524 cmd.exe 2392 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2392 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2028 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 2028 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2028 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe Token: SeImpersonatePrivilege 2028 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2576 wrote to memory of 2028 2576 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 85 PID 2028 wrote to memory of 2524 2028 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 99 PID 2028 wrote to memory of 2524 2028 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe 99 PID 2524 wrote to memory of 2392 2524 cmd.exe 101 PID 2524 wrote to memory of 2392 2524 cmd.exe 101 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Users\Admin\AppData\Local\Temp\2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_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:2028 -
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\2024-11-14_cdcb4b576b99e4e45435ab668a3e2c3f_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2524 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2392
-
-
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1