Analysis
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max time kernel
121s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
13-12-2024 01:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe
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Size
3.1MB
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MD5
a7e925a92645f00a6e3a34e529b32f74
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SHA1
b1a02e07961d6340eeb0815614c2433eb4629458
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SHA256
21345abefc18f91271f25c32ce1c7c09b4b9234605edfbd9e35bf33f124de074
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SHA512
1a755a63fdcbb43ec77bb5fcef91a59ff842024121451807f3629e737d784dfa338b69fb17afa75fb42fec566ed5756a086ce538c01c8e11f2b872aae968482e
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SSDEEP
49152:u2TEq2yVp1b7iP9WakSbrUITcPH+hp9ZEDeo: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
Punish
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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 51 IoCs
resource yara_rule behavioral1/memory/1660-3-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-26-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-25-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-21-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-51-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-83-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-85-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-77-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-67-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-91-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-90-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-88-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-61-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-57-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-93-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral1/memory/1660-94-0x0000000140000000-0x00000001401FA000-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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\International\Geo\Nation 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.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-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_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 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3052 set thread context of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2000 cmd.exe 1724 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1724 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1660 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1660 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe Token: SeImpersonatePrivilege 1660 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 3052 wrote to memory of 1660 3052 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 30 PID 1660 wrote to memory of 2000 1660 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 32 PID 1660 wrote to memory of 2000 1660 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 32 PID 1660 wrote to memory of 2000 1660 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe 32 PID 2000 wrote to memory of 1724 2000 cmd.exe 34 PID 2000 wrote to memory of 1724 2000 cmd.exe 34 PID 2000 wrote to memory of 1724 2000 cmd.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_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:1660 -
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\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1724
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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