Malware Analysis Report

2025-06-16 07:32

Sample ID 240601-yyweesdf8z
Target 2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk
SHA256 611592169b2b74321ce3cea8d73d3d9430a49750b38a751d597e2761d685f742
Tags
score
3/10

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
3/10

SHA256

611592169b2b74321ce3cea8d73d3d9430a49750b38a751d597e2761d685f742

Threat Level: Likely benign

The file 2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk was found to be: Likely benign.

Malicious Activity Summary


Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-01 20:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 20:12

Reported

2024-06-01 20:14

Platform

win7-20240508-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe"

Network

N/A

Files

memory/1636-0-0x00000000008F0000-0x0000000000950000-memory.dmp

memory/1636-7-0x00000000008F0000-0x0000000000950000-memory.dmp

memory/1636-6-0x0000000140000000-0x00000001400CF000-memory.dmp

memory/1636-8-0x00000000008F0000-0x0000000000950000-memory.dmp

memory/1636-13-0x0000000140000000-0x00000001400CF000-memory.dmp

memory/1636-12-0x00000000008F0000-0x0000000000950000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 20:12

Reported

2024-06-01 20:14

Platform

win10v2004-20240508-en

Max time kernel

133s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_933964a2ad5d53dc5c0059e1723d4daf_cobalt-strike_ryuk.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 97.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 106.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/3204-8-0x0000000000CE0000-0x0000000000D40000-memory.dmp

memory/3204-10-0x0000000000CE0000-0x0000000000D40000-memory.dmp

memory/3204-12-0x0000000140000000-0x00000001400CF000-memory.dmp

memory/3204-7-0x0000000000CE0000-0x0000000000D40000-memory.dmp

memory/3204-6-0x0000000140000000-0x00000001400CF000-memory.dmp

memory/3204-0-0x0000000000CE0000-0x0000000000D40000-memory.dmp