Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
14-11-2024 10:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe
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Size
3.6MB
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MD5
57d3d94b9426af08c8f4eab56633999d
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SHA1
9cf5b4b78bb06ad7c2ec09b41dbf0182360e60a8
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SHA256
d73202ebe790563c17e98c35095e377c0392a19afbe876e62f6b982af3433d6b
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SHA512
26428a0431b7115538e87e3a032cd21972162565fb278f21c7a2e6fd394e8e90bddf541574b12f0abcc57ddde298b5609cfe2a4e3f127c67e7f756f7cb184b48
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SSDEEP
49152:0QusxfsGJoEW5hJHOrV7bPjHfM6m1KioYz+7rbp:5lp
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
424
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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
Processes:
resource yara_rule behavioral1/memory/2364-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-3-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-93-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2364-94-0x0000000140000000-0x00000001401FA000-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:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\International\Geo\Nation 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid Process 2764 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:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_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:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exedescription pid Process procid_target PID 2220 set thread context of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 -
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 2764 cmd.exe 2940 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exepid Process 2364 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exedescription pid Process Token: SeDebugPrivilege 2364 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe Token: SeImpersonatePrivilege 2364 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.execmd.exedescription pid Process procid_target PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2220 wrote to memory of 2364 2220 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 30 PID 2364 wrote to memory of 2764 2364 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 32 PID 2364 wrote to memory of 2764 2364 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 32 PID 2364 wrote to memory of 2764 2364 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe 32 PID 2764 wrote to memory of 2940 2764 cmd.exe 34 PID 2764 wrote to memory of 2940 2764 cmd.exe 34 PID 2764 wrote to memory of 2940 2764 cmd.exe 34 -
outlook_office_path 1 IoCs
Processes:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Users\Admin\AppData\Local\Temp\2024-11-14_57d3d94b9426af08c8f4eab56633999d_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-14_57d3d94b9426af08c8f4eab56633999d_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:2364 -
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_57d3d94b9426af08c8f4eab56633999d_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2940
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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