Malware Analysis Report

2024-08-06 10:27

Sample ID 240614-rkcltsxfqj
Target 77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc
SHA256 77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc
Tags
cobaltstrike backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc

Threat Level: Known bad

The file 77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc was found to be: Known bad.

Malicious Activity Summary

cobaltstrike backdoor trojan

Cobaltstrike

Unsigned PE

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-14 14:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 14:14

Reported

2024-06-14 14:17

Platform

win7-20240611-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc.exe

"C:\Users\Admin\AppData\Local\Temp\77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc.exe"

Network

Country Destination Domain Proto
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp

Files

memory/2944-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2944-1-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 14:14

Reported

2024-06-14 14:17

Platform

win10v2004-20240226-en

Max time kernel

152s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc.exe

"C:\Users\Admin\AppData\Local\Temp\77399cf11042b79ac3809c6b5ca43aa560a1a2440d628c92e66310fce85937fc.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
CN 118.178.237.85:5988 tcp
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
CN 118.178.237.85:5988 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 31.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
CN 118.178.237.85:5988 tcp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 234.187.250.142.in-addr.arpa udp
CN 118.178.237.85:5988 tcp
CN 118.178.237.85:5988 tcp
US 8.8.8.8:53 9.73.50.20.in-addr.arpa udp
CN 118.178.237.85:5988 tcp

Files

memory/4024-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/4024-1-0x0000000000400000-0x000000000040C000-memory.dmp