Malware Analysis Report

2024-11-30 20:42

Sample ID 241119-bynm9aybke
Target 2024-11-19_394797ab6934f4db2364f672feed7669_ryuk
SHA256 ca130b3fce182c547d93de04d673c6456f16e1eb73ce941dc7dd2c3c7d62ae5b
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

ca130b3fce182c547d93de04d673c6456f16e1eb73ce941dc7dd2c3c7d62ae5b

Threat Level: Known bad

The file 2024-11-19_394797ab6934f4db2364f672feed7669_ryuk was found to be: Known bad.

Malicious Activity Summary

meduza collection discovery spyware stealer

Meduza family

Meduza

Meduza Stealer payload

Reads user/profile data of web browsers

Checks computer location settings

Looks up external IP address via web service

Checks installed software on the system

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Unsigned PE

Browser Information Discovery

outlook_office_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-19 01:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-19 01:33

Reported

2024-11-19 01:35

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-19 01:33

Reported

2024-11-19 01:35

Platform

win10v2004-20241007-en

Max time kernel

96s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe
PID 3200 wrote to memory of 1300 N/A C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe"

C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-19_394797ab6934f4db2364f672feed7669_ryuk.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.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 142.250.200.3:80 c.pki.goog tcp
US 8.8.8.8:53 162.181.107.109.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 205.12.26.104.in-addr.arpa udp
US 8.8.8.8:53 3.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/3200-0-0x00007FF6E8AD0000-0x00007FF6E8AD1000-memory.dmp

memory/1300-5-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-4-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-15-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-12-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-23-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-24-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-22-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-16-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-17-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-18-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-19-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-9-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-6-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-11-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-10-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-32-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-31-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-35-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-37-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-36-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-38-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-43-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-44-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-42-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-39-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-45-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-50-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-75-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-80-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-88-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-95-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-87-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-77-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-74-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-69-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-68-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-83-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-64-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-61-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-56-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-55-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-52-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-49-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-46-0x0000000140000000-0x00000001401FA000-memory.dmp

memory/1300-58-0x0000000140000000-0x00000001401FA000-memory.dmp