Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
02-12-2024 18:01
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe
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Size
4.1MB
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MD5
76b643007c60d1458e92449867d9f7cc
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SHA1
68b1f9268439e9207ed97f001c7b37d06a64d89b
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SHA256
ae9667b534dc035aba3939f488109b56e4e66a3ded2f25a8010d84bb2ab30e89
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SHA512
b3ce98596474883cbca22f318159f71fb4fbb60205cc021e82075a63fc7661d03591cf4b3ff65f59ad0da77eba8442f2f2ba781b9f71d192482cb27ccc72f527
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SSDEEP
49152:Xl4UjB0jUuqtLqVXgDd/m1TnJnBtc5lKzZ2tHrqF5Gifw5A:14UjKgugA
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
779
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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 45 IoCs
Processes:
resource yara_rule behavioral1/memory/3064-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-95-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-80-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/3064-96-0x0000000140000000-0x00000001401FA000-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:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\International\Geo\Nation 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid Process 1708 cmd.exe -
Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
Processes:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_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:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exedescription pid Process procid_target PID 2996 set thread context of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_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 1708 cmd.exe 2020 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exepid Process 3064 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exedescription pid Process Token: SeDebugPrivilege 3064 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe Token: SeImpersonatePrivilege 3064 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.execmd.exedescription pid Process procid_target PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 2996 wrote to memory of 3064 2996 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 30 PID 3064 wrote to memory of 1708 3064 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 31 PID 3064 wrote to memory of 1708 3064 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 31 PID 3064 wrote to memory of 1708 3064 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe 31 PID 1708 wrote to memory of 2020 1708 cmd.exe 33 PID 1708 wrote to memory of 2020 1708 cmd.exe 33 PID 1708 wrote to memory of 2020 1708 cmd.exe 33 -
outlook_office_path 1 IoCs
Processes:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2996 -
C:\Users\Admin\AppData\Local\Temp\2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe"2⤵
- 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:3064 -
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\2024-12-02_76b643007c60d1458e92449867d9f7cc_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1708 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2020
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