Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28-11-2024 19:52
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe
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Size
4.1MB
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MD5
9018d445d422d00fbd2a40a1749db856
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SHA1
57f86287ac5e724b474ae5c95b0061a2bd9f4d46
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SHA256
6341026ca773d2f184cec494166e5f3518e0fb0686f5d8905fcffba33f15facd
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SHA512
584cab8a72f50222e9a2b8c08ea51c00acbdc6e9f337cb7231b2e5dbe229029fd6419f389ba832ddbdc3a92d1220d99f182376faf368ca72739ff9d4dd73bd7f
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SSDEEP
49152:Xl4UjB0jUu390cPFA9Wj4Oe/BxgERCdouH1dZA:14UjKgulA
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
228
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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/2728-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2728-94-0x0000000140000000-0x00000001401FA000-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-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\International\Geo\Nation 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe -
Deletes itself 1 IoCs
pid Process 2836 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-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_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 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1088 set thread context of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_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 2836 cmd.exe 1628 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1628 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2728 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2728 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe Token: SeImpersonatePrivilege 2728 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 1088 wrote to memory of 2728 1088 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 30 PID 2728 wrote to memory of 2836 2728 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 32 PID 2728 wrote to memory of 2836 2728 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 32 PID 2728 wrote to memory of 2836 2728 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe 32 PID 2836 wrote to memory of 1628 2836 cmd.exe 34 PID 2836 wrote to memory of 1628 2836 cmd.exe 34 PID 2836 wrote to memory of 1628 2836 cmd.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1088 -
C:\Users\Admin\AppData\Local\Temp\2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-28_9018d445d422d00fbd2a40a1749db856_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:2728 -
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\2024-11-28_9018d445d422d00fbd2a40a1749db856_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2836 -
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