Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09-12-2024 01:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe
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Size
4.1MB
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MD5
c55ce8a5016e1628887b48bbd1beb923
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SHA1
60ad46da825e8a59f5b1c5b59795c8f0273c8d06
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SHA256
34bf15220b0259eb2ed1d024f6e5e2ada2bd0a0501d0c1931e4097a787bb634b
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SHA512
4388dcbb5be669b8dab78ffa59a184d5a508455ac932b7d992a38014dc89cdee09f8f94720d0284f6033bf1dccf113b5a557c1da2a4917cc42c964cddeb2de79
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SSDEEP
49152:Xl4UjB0jUuoO+BxK2/VJTe1LK+vBmGKOWB11MaXEcA:14UjKguGA
Malware Config
Extracted
meduza
5.252.155.28
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anti_dbg
true
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anti_vm
true
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build_name
782
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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/2816-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-94-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2816-93-0x0000000140000000-0x00000001401FA000-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-1-5-21-1488793075-819845221-1497111674-1000\Control Panel\International\Geo\Nation 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe -
Deletes itself 1 IoCs
pid Process 1744 cmd.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-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_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 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3012 set thread context of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1744 cmd.exe 1628 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1628 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2816 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2816 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe Token: SeImpersonatePrivilege 2816 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 3012 wrote to memory of 2816 3012 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 31 PID 2816 wrote to memory of 1744 2816 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 33 PID 2816 wrote to memory of 1744 2816 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 33 PID 2816 wrote to memory of 1744 2816 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe 33 PID 1744 wrote to memory of 1628 1744 cmd.exe 35 PID 1744 wrote to memory of 1628 1744 cmd.exe 35 PID 1744 wrote to memory of 1628 1744 cmd.exe 35 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Users\Admin\AppData\Local\Temp\2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-09_c55ce8a5016e1628887b48bbd1beb923_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:2816 -
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\2024-12-09_c55ce8a5016e1628887b48bbd1beb923_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1628
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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