Malware Analysis Report

2025-01-22 13:06

Sample ID 240724-lyh3wazejk
Target bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef
SHA256 bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef
Tags
cobaltstrike backdoor trojan
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

bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef

Threat Level: Known bad

The file bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef was found to be: Known bad.

Malicious Activity Summary

cobaltstrike backdoor trojan

Cobaltstrike

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-24 09:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-24 09:56

Reported

2024-07-24 09:58

Platform

win7-20240704-en

Max time kernel

140s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef.exe

"C:\Users\Admin\AppData\Local\Temp\bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef.exe"

Network

Country Destination Domain Proto
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp

Files

memory/2028-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2028-1-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-24 09:56

Reported

2024-07-24 09:59

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef.exe

"C:\Users\Admin\AppData\Local\Temp\bf9daa7b2a00ca70f2c0691f62c31ed4bd2dbf5e4f4b4672bc124808cb7fa4ef.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
N/A 192.168.139.141:1234 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
N/A 192.168.139.141:1234 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
N/A 192.168.139.141:1234 tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
N/A 192.168.139.141:1234 tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
N/A 192.168.139.141:1234 tcp
N/A 192.168.139.141:1234 tcp

Files

memory/2140-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2140-1-0x0000000000400000-0x000000000040C000-memory.dmp