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Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13/11/2024, 11:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
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Size
3.6MB
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MD5
75b67e3ddf960879f0bfe4db7f2e61b0
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SHA1
323759fbb5a65c89351f8b0ac35c5e8c9e344b0c
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SHA256
37d10c32a5efe52fc00b976723dfd1eb1a1851e9cbbde5e49d6ba6d3e1848f89
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SHA512
17f3858651831973b733931ebc9c19f3b8356107af7328d90cc30373a294b8c17237f64ad04c0c906cc2b5519b390c23941397cadb347621c261f9b63d695c56
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SSDEEP
49152:0QusxfsjLFBjCUYamvmf6L7ePUZ94p/D3WoPt5Yg0O7Qzp:5pp
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
420
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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 49 IoCs
resource yara_rule behavioral1/memory/2528-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-3-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2528-91-0x0000000140000000-0x00000001401FA000-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-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\International\Geo\Nation 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_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-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_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 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2348 set thread context of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2848 cmd.exe 2500 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2500 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2528 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2528 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Token: SeImpersonatePrivilege 2528 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2348 wrote to memory of 2528 2348 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 30 PID 2528 wrote to memory of 2848 2528 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 33 PID 2528 wrote to memory of 2848 2528 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 33 PID 2528 wrote to memory of 2848 2528 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 33 PID 2848 wrote to memory of 2500 2848 cmd.exe 35 PID 2848 wrote to memory of 2500 2848 cmd.exe 35 PID 2848 wrote to memory of 2500 2848 cmd.exe 35 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2348 -
C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_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:2528 -
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\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2500
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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