Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
07-01-2025 21:22
Static task
static1
Behavioral task
behavioral1
Sample
2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe
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Size
4.1MB
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MD5
074c59a677f28681f09b088b5eff7b9b
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SHA1
b49e41a65125eade7f90831e4eae74afe30167b7
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SHA256
25e277e1b7eeec58d0b02fe55bc37c574497faedc23e2a0a05139b3a3ab481ff
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SHA512
2f77955b930fbbefb6465e3f9a58f0c82b5f6afdefc5329416dfe5dfa2e979a3461bec977bc492b9ff85d53a42cf52b6771b9988f50455211a238cc331664abf
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SSDEEP
49152:qxGK0l3e3udzDRxACQG2zuPLlPx6rA3EYMHGul7irGxdecVUovWH8beZ:qxGK09yuJZ
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
686
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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 42 IoCs
resource yara_rule behavioral1/memory/2532-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-27-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-70-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-64-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-74-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2532-42-0x0000000140000000-0x00000001401FA000-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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe -
Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_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 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2372 set thread context of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1932 PING.EXE 1672 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1932 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2532 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2532 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe Token: SeImpersonatePrivilege 2532 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2372 wrote to memory of 2532 2372 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 30 PID 2532 wrote to memory of 1672 2532 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 33 PID 2532 wrote to memory of 1672 2532 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 33 PID 2532 wrote to memory of 1672 2532 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe 33 PID 1672 wrote to memory of 1932 1672 cmd.exe 35 PID 1672 wrote to memory of 1932 1672 cmd.exe 35 PID 1672 wrote to memory of 1932 1672 cmd.exe 35 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Users\Admin\AppData\Local\Temp\2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2025-01-07_074c59a677f28681f09b088b5eff7b9b_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:2532 -
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\2025-01-07_074c59a677f28681f09b088b5eff7b9b_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1932
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