Malware Analysis Report

2025-01-18 00:57

Sample ID 240613-ltyyjaxepl
Target 2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk
SHA256 5b7f85f5bcad72000186b7aef0a97cd2dd0221eb4f4cf7f097d211d3c8f90f73
Tags
score
5/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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
5/10

SHA256

5b7f85f5bcad72000186b7aef0a97cd2dd0221eb4f4cf7f097d211d3c8f90f73

Threat Level: Likely benign

The file 2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk was found to be: Likely benign.

Malicious Activity Summary


Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-13 09:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 09:50

Reported

2024-06-13 09:52

Platform

win7-20240611-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe"

Network

N/A

Files

memory/1876-0-0x0000000140000000-0x0000000140259000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 09:50

Reported

2024-06-13 09:52

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe"

Signatures

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\alg.exe C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_5756927ca0b07c63d46321f9cfdca69e_ryuk.exe"

Network

Files

memory/1484-0-0x0000000140000000-0x0000000140259000-memory.dmp

memory/1484-9-0x0000000000830000-0x0000000000890000-memory.dmp

memory/1484-1-0x0000000000830000-0x0000000000890000-memory.dmp

memory/1484-15-0x0000000000830000-0x0000000000890000-memory.dmp

memory/1484-14-0x0000000140000000-0x0000000140259000-memory.dmp