Analysis
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max time kernel
149s -
max time network
157s -
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 10:02
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe
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Size
3.6MB
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MD5
800fe21ddcd90e54f331317b867dcc40
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SHA1
de9b289e040d3a8c2c8b1a54363bca093a8c9f6c
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SHA256
29949a49cb348c6bf17cb88ff032bfab3b9459234912075b05f4d2bef85dfd91
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SHA512
d0638779de684c273d6266b81af56d345b5551d8040cb49cd545be769447ed43b795eccd8917f567bf683f91e9549a5605c3bcc2e1deb884ccc13680a72eaa42
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SSDEEP
24576:wiSVYduVRYxf0fXRprslmeEi14VLHczE0/umRXAg9RkB1yEGqbkMTiYlSOjNDMf3:0QusxfsGgVt0/umRrwojFGn8DLkMdv1p
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
570
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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 47 IoCs
resource yara_rule behavioral2/memory/5096-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-98-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5096-99-0x0000000140000000-0x00000001401FA000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation 2024-11-14_800fe21ddcd90e54f331317b867dcc40_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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_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 10 api.ipify.org 11 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4804 set thread context of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 -
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 648 cmd.exe 4320 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4320 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5096 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 5096 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5096 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe Token: SeImpersonatePrivilege 5096 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 4804 wrote to memory of 5096 4804 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 84 PID 5096 wrote to memory of 648 5096 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 95 PID 5096 wrote to memory of 648 5096 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe 95 PID 648 wrote to memory of 4320 648 cmd.exe 97 PID 648 wrote to memory of 4320 648 cmd.exe 97 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Users\Admin\AppData\Local\Temp\2024-11-14_800fe21ddcd90e54f331317b867dcc40_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-14_800fe21ddcd90e54f331317b867dcc40_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:5096 -
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_800fe21ddcd90e54f331317b867dcc40_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:648 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4320
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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