Malware Analysis Report

2024-11-30 20:34

Sample ID 241117-mfkdnaxhqj
Target 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk
SHA256 98673dbe7eb9b78140a4e215e7f028ce40393371c39debd0fde5a37534c4b8c8
Tags
meduza collection discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

98673dbe7eb9b78140a4e215e7f028ce40393371c39debd0fde5a37534c4b8c8

Threat Level: Known bad

The file 2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk was found to be: Known bad.

Malicious Activity Summary

meduza collection discovery spyware stealer

Meduza family

Meduza Stealer payload

Meduza

Checks computer location settings

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Checks installed software on the system

Looks up external IP address via web service

Suspicious use of SetThreadContext

Browser Information Discovery

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

Unsigned PE

Runs ping.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

outlook_office_path

Suspicious use of WriteProcessMemory

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 10:24

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 10:24

Reported

2024-11-17 10:27

Platform

win7-20240903-en

Max time kernel

117s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 10:24

Reported

2024-11-17 10:27

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"

Signatures

Meduza

stealer meduza

Meduza Stealer payload

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Meduza family

meduza

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A

Checks installed software on the system

discovery

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Browser Information Discovery

discovery

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\System32\cmd.exe N/A
N/A N/A C:\Windows\system32\PING.EXE N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 4172 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe
PID 3688 wrote to memory of 3660 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Windows\System32\cmd.exe
PID 3688 wrote to memory of 3660 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe C:\Windows\System32\cmd.exe
PID 3660 wrote to memory of 3604 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\PING.EXE
PID 3660 wrote to memory of 3604 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\PING.EXE

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe

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\2024-11-17_a6a5175d334d452e5f7ecb4a7c59ccc7_ryuk.exe"

C:\Windows\system32\PING.EXE

ping 1.1.1.1 -n 1 -w 3000

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
DE 109.107.181.162:15666 tcp
US 8.8.8.8:53 api.ipify.org udp
US 104.26.12.205:443 api.ipify.org tcp
US 8.8.8.8:53 c.pki.goog udp
GB 216.58.201.99:80 c.pki.goog tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 162.181.107.109.in-addr.arpa udp
US 8.8.8.8:53 205.12.26.104.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/4172-0-0x00007FF63BB40000-0x00007FF63BB41000-memory.dmp

memory/3688-5-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-16-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-22-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-24-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-18-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-19-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-17-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-15-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-12-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-10-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-9-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-6-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-11-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-4-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-31-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-32-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-36-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-37-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-42-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-38-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-35-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-43-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-44-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-39-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-45-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-77-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-88-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-86-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-95-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-81-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-80-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-75-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-70-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-74-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-62-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-61-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-56-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-55-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-52-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-50-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-49-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-46-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-67-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-58-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-98-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/3688-99-0x0000000140000000-0x00000001401FA000-memory.dmp