Analysis
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max time kernel
95s -
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
23-11-2024 07:04
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe
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Size
4.1MB
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MD5
7c7d0d6b2de056f86ca95d9baaf6c44e
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SHA1
6663f7513688f1a346e9e928799fa893ab015fb2
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SHA256
f8f269c80e6cfd9f4e72c56afb40d79294e82443b9c9688988f0cb60e312efca
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SHA512
84afb96c9c436edfbd54f46e19156780c04d6618f6d5b5728f9e9d83b35005d84c02a8f0b2c8724123c1436e40ba95c9d17eab1382b1b709a59691104dd396f2
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SSDEEP
49152:/xGK0l3e3uF0cqW/bXtq3pDu5k/DcU87rwGFo9MmihiHzG97r3SZ:/xGK09yuiZ
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
592
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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 46 IoCs
Processes:
resource yara_rule behavioral2/memory/3476-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-100-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/3476-101-0x0000000140000000-0x00000001401FA000-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.
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_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
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_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.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exedescription pid process target process PID 2608 set thread context of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe -
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.
Processes:
cmd.exePING.EXEpid process 1620 cmd.exe 4288 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exepid process 3476 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 3476 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exedescription pid process Token: SeDebugPrivilege 3476 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe Token: SeImpersonatePrivilege 3476 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.execmd.exedescription pid process target process PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 2608 wrote to memory of 3476 2608 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe PID 3476 wrote to memory of 1620 3476 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe cmd.exe PID 3476 wrote to memory of 1620 3476 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe cmd.exe PID 1620 wrote to memory of 4288 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 4288 1620 cmd.exe PING.EXE -
outlook_office_path 1 IoCs
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2608 -
C:\Users\Admin\AppData\Local\Temp\2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_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:3476 -
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\2024-11-23_7c7d0d6b2de056f86ca95d9baaf6c44e_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4288
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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