Malware Analysis Report

2025-04-14 04:17

Sample ID 240609-jea7tagd66
Target 2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk
SHA256 f3e64dc35c4978c2c6afc86305181c832c63dd5fb1d1e89c73bbdc3400c94b21
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

f3e64dc35c4978c2c6afc86305181c832c63dd5fb1d1e89c73bbdc3400c94b21

Threat Level: Likely benign

The file 2024-06-09_b62bef837af2d074a8cd68708ae5ae82_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

2024-06-09 07:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-09 07:34

Reported

2024-06-09 07:36

Platform

win7-20240508-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe"

Network

N/A

Files

memory/2416-0-0x0000000140000000-0x0000000140233000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 07:34

Reported

2024-06-09 07:37

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_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\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b62bef837af2d074a8cd68708ae5ae82_ryuk.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp

Files

memory/2656-0-0x0000000140000000-0x0000000140233000-memory.dmp

memory/2656-9-0x00000000020A0000-0x0000000002100000-memory.dmp

memory/2656-1-0x00000000020A0000-0x0000000002100000-memory.dmp

memory/2656-13-0x00000000020A0000-0x0000000002100000-memory.dmp

memory/2656-14-0x0000000140000000-0x0000000140233000-memory.dmp