Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19-11-2024 13:39
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe
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Size
4.1MB
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MD5
dcbb36bd1224d24143523166661ff68c
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SHA1
0c3a0680e8ae8f7fdd60d31b014bf8beeb04c7dc
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SHA256
724b8c8426b718cef5a560416f66b3f7e4c832b40e523537529ecab6c0074400
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SHA512
1f807834794f05a6e5952e3e2e0e47012d44bbb8e00d185ddb6f52069205bebb2440196d60a967b0dc2e8a0d340f23034b5876381c3e447fc745caab48ac7073
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SSDEEP
49152:qxGK0l3e3uqbpeMUEobrd83Y92nyU/laeIchcYZ:qxGK09yuqZ
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
729
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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 48 IoCs
Processes:
resource yara_rule behavioral1/memory/2548-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-93-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2548-94-0x0000000140000000-0x00000001401FA000-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.
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\International\Geo\Nation 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid Process 1232 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
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_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 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exedescription pid Process procid_target PID 2072 set thread context of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 -
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 1232 cmd.exe 2820 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exepid Process 2548 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exedescription pid Process Token: SeDebugPrivilege 2548 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe Token: SeImpersonatePrivilege 2548 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.execmd.exedescription pid Process procid_target PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2072 wrote to memory of 2548 2072 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 31 PID 2548 wrote to memory of 1232 2548 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 33 PID 2548 wrote to memory of 1232 2548 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 33 PID 2548 wrote to memory of 1232 2548 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe 33 PID 1232 wrote to memory of 2820 1232 cmd.exe 35 PID 1232 wrote to memory of 2820 1232 cmd.exe 35 PID 1232 wrote to memory of 2820 1232 cmd.exe 35 -
outlook_office_path 1 IoCs
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Users\Admin\AppData\Local\Temp\2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-19_dcbb36bd1224d24143523166661ff68c_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:2548 -
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\2024-11-19_dcbb36bd1224d24143523166661ff68c_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1232 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2820
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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