Malware Analysis Report

2025-01-22 19:22

Sample ID 240806-kqkfasvdrk
Target 2404-0-0x0000000000110000-0x0000000000162000-memory.dmp
SHA256 f5d18974b03f9d715d4ab1397bf23765e0e70c267c2692c25d5422210752a5ba
Tags
0 cobaltstrike
score
10/10

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
10/10

SHA256

f5d18974b03f9d715d4ab1397bf23765e0e70c267c2692c25d5422210752a5ba

Threat Level: Known bad

The file 2404-0-0x0000000000110000-0x0000000000162000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

0 cobaltstrike

Cobaltstrike family

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-08-06 08:48

Signatures

Cobaltstrike family

cobaltstrike

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 08:48

Reported

2024-08-06 08:50

Platform

win7-20240705-en

Max time kernel

119s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2404-0-0x0000000000110000-0x0000000000162000-memory.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2124 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2124 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2124 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2404-0-0x0000000000110000-0x0000000000162000-memory.dll,#1

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2124 -s 52

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 08:48

Reported

2024-08-06 08:50

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

96s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2404-0-0x0000000000110000-0x0000000000162000-memory.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2404-0-0x0000000000110000-0x0000000000162000-memory.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

N/A