Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
14-12-2024 15:28
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
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Size
3.1MB
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MD5
ad6acdfef8c43ce3cb36347d05ed3853
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SHA1
06b115c49269694ecbf49ec3bcb1298d385c315a
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SHA256
007b35ee7d490e9efcb6abd1114d049f44f0d09242309ee9f877e72ec7e87ff1
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SHA512
87078dfa525df65dff4d6e589d0f8412a3ec2c8d6c454464a56549f7508505c1fc6f5fa1b419cc8dee0e59fbaa6e941d9886021fd822522a2aa164fc7b9a2952
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SSDEEP
49152:u9HsRAKr2VC09l4gSZRYqEMzYoASz38hIt04:u
Malware Config
Extracted
meduza
45.130.145.152
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anti_dbg
true
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anti_vm
true
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build_name
Santa
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extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite
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grabber_max_size
4.194304e+06
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port
15666
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self_destruct
true
Signatures
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Meduza Stealer payload 52 IoCs
resource yara_rule behavioral1/memory/2908-3-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-28-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-73-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-92-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-94-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/2908-100-0x0000000140000000-0x00000001401FA000-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-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\International\Geo\Nation 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
Deletes itself 1 IoCs
pid Process 2284 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-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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 3 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2924 set thread context of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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 2284 cmd.exe 1140 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1140 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2908 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2908 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe Token: SeImpersonatePrivilege 2908 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2924 wrote to memory of 2908 2924 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 30 PID 2908 wrote to memory of 2284 2908 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 32 PID 2908 wrote to memory of 2284 2908 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 32 PID 2908 wrote to memory of 2284 2908 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe 32 PID 2284 wrote to memory of 1140 2284 cmd.exe 34 PID 2284 wrote to memory of 1140 2284 cmd.exe 34 PID 2284 wrote to memory of 1140 2284 cmd.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe -
outlook_win_path 1 IoCs
description 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 2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2924 -
C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_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:2908 -
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\2024-12-14_ad6acdfef8c43ce3cb36347d05ed3853_cobalt-strike_ryuk.exe"3⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1140
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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