Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 02:08
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe
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Size
4.1MB
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MD5
a77ca6dd2fef264d39cc9baa904eda9a
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SHA1
6d2448b082ff40fa9ca07b7b77b82239ddcd1344
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SHA256
d156a993d7b7f3b39cffddb1d59053639c1e24f964cd464d9ef89f54ae3006b2
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SHA512
92d0197c278e54119ebef297173221c3ead18da8e1e772983fd99d4f824bae5c143d68cf9e695ea49a920aa7808ccbaa4630d5ebf196b9dc246dbc12a77c71fc
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SSDEEP
49152:qxGK0l3e3ue52XBCYc0zjM2rMN0h+MqJpYUboujSVXzCoogFDZ:qxGK09yuxZ
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
424
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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 46 IoCs
Processes:
resource yara_rule behavioral2/memory/5068-4-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-16-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-19-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-24-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-23-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-22-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-17-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-9-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-10-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-32-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-31-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-39-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-58-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-87-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-89-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-81-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-76-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-82-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-69-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-68-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-63-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-62-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-52-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-46-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-45-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-55-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-49-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-38-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-99-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/5068-100-0x0000000140000000-0x00000001401FA000-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.
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_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
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_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 10 api.ipify.org 11 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exedescription pid process target process PID 4864 set thread context of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe -
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.
Processes:
cmd.exePING.EXEpid process 5012 cmd.exe 5088 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exepid process 5068 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 5068 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exedescription pid process Token: SeDebugPrivilege 5068 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe Token: SeImpersonatePrivilege 5068 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.execmd.exedescription pid process target process PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 4864 wrote to memory of 5068 4864 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe PID 5068 wrote to memory of 5012 5068 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe cmd.exe PID 5068 wrote to memory of 5012 5068 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe cmd.exe PID 5012 wrote to memory of 5088 5012 cmd.exe PING.EXE PID 5012 wrote to memory of 5088 5012 cmd.exe PING.EXE -
outlook_office_path 1 IoCs
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe -
outlook_win_path 1 IoCs
Processes:
2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4864 -
C:\Users\Admin\AppData\Local\Temp\2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_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:5068 -
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\2024-11-20_a77ca6dd2fef264d39cc9baa904eda9a_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:5088
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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