Malware Analysis Report

2024-10-23 18:55

Sample ID 241009-xwgykssbnp
Target 9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666
SHA256 9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666
Tags
cobaltstrike 100000 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666

Threat Level: Known bad

The file 9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 100000 backdoor trojan

Cobaltstrike

Blocklisted process makes network request

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-10-09 19:12

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-09 19:12

Reported

2024-10-09 19:14

Platform

win10v2004-20241007-en

Max time kernel

131s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe

"C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe

Network

Country Destination Domain Proto
CN 8.137.147.254:7001 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 102.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
CN 8.137.147.254:7001 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
US 8.8.8.8:53 71.209.201.84.in-addr.arpa udp
CN 8.137.147.254:7001 tcp
US 8.8.8.8:53 242.108.222.173.in-addr.arpa udp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp

Files

memory/2284-0-0x00000147DD430000-0x00000147DD471000-memory.dmp

memory/2284-2-0x00000147DD8B0000-0x00000147DDD22000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-09 19:12

Reported

2024-10-09 19:14

Platform

win7-20240903-en

Max time kernel

149s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe

"C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe

Network

Country Destination Domain Proto
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp
CN 8.137.147.254:7001 tcp

Files

memory/2380-0-0x0000000000110000-0x0000000000151000-memory.dmp

memory/2380-2-0x00000000020D0000-0x0000000002542000-memory.dmp