Analysis
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max time kernel
31s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
16-11-2024 09:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
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Size
3.6MB
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MD5
1dcc07eb97d4c4f32abd4666dfd142f1
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SHA1
57b1dd27cb92ddd3c980be825e63d0d0cdbb9d1a
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SHA256
d24a318bf92e09537597a99368482fe4733719db4cda72adf3f05e15a729325c
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SHA512
1e47a286851b1f717d3ff827694577ebd56d2512bb9f099309155f323dc7b19d6115d2066d6d9630d637435acc019b622bf163e7fb8797a88e5ebc27d891f512
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SSDEEP
49152:0QusxfslDDkEOnTyApUINfVkPEs4MscSPEamK3g62RXbhrp:5sp
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
684
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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
resource yara_rule behavioral1/memory/2468-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-3-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2468-93-0x0000000140000000-0x00000001401FA000-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-1-5-21-2703099537-420551529-3771253338-1000\Control Panel\International\Geo\Nation 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
Deletes itself 1 IoCs
pid Process 2624 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-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1820 set thread context of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2624 cmd.exe 2184 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2184 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2468 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2468 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe Token: SeImpersonatePrivilege 2468 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 1820 wrote to memory of 2468 1820 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 28 PID 2468 wrote to memory of 2624 2468 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 30 PID 2468 wrote to memory of 2624 2468 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 30 PID 2468 wrote to memory of 2624 2468 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe 30 PID 2624 wrote to memory of 2184 2624 cmd.exe 32 PID 2624 wrote to memory of 2184 2624 cmd.exe 32 PID 2624 wrote to memory of 2184 2624 cmd.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1820 -
C:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_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:2468 -
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\2024-11-16_1dcc07eb97d4c4f32abd4666dfd142f1_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2624 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2184
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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