Malware Analysis Report

2024-08-06 16:05

Sample ID 240509-st63gagg7x
Target Program.cs
SHA256 5d70f8cd423aa75c5ac8e93b047fd6816663e68520f7f1ba2b68567a2cec5161
Tags
chaos execution
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

5d70f8cd423aa75c5ac8e93b047fd6816663e68520f7f1ba2b68567a2cec5161

Threat Level: Known bad

The file Program.cs was found to be: Known bad.

Malicious Activity Summary

chaos execution

Chaos family

Chaos Ransomware

Command and Scripting Interpreter: JavaScript

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
JavaScript
T1059.007
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-09 15:26

Signatures

Chaos Ransomware

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

Chaos family

chaos

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 15:26

Reported

2024-05-09 15:28

Platform

win7-20240221-en

Max time kernel

95s

Max time network

16s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\Program.js

Signatures

Command and Scripting Interpreter: JavaScript

execution

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\Program.js

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 15:26

Reported

2024-05-09 15:28

Platform

win10v2004-20240226-en

Max time kernel

85s

Max time network

92s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\Program.js

Signatures

Command and Scripting Interpreter: JavaScript

execution

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\Program.js

C:\Program Files\VideoLAN\VLC\vlc.exe

"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\CompressMeasure.wma"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

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=3700 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 31.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 194.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/1012-0-0x00007FF681CF0000-0x00007FF681DE8000-memory.dmp

memory/1012-1-0x00007FFAFA3D0000-0x00007FFAFA404000-memory.dmp

memory/1012-6-0x00007FFAF12A0000-0x00007FFAF12B7000-memory.dmp

memory/1012-9-0x00007FFAE7B80000-0x00007FFAE7B91000-memory.dmp

memory/1012-8-0x00007FFAE7BA0000-0x00007FFAE7BBD000-memory.dmp

memory/1012-7-0x00007FFAE9940000-0x00007FFAE9951000-memory.dmp

memory/1012-2-0x00007FFAE80C0000-0x00007FFAE8374000-memory.dmp

memory/1012-5-0x00007FFAF3020000-0x00007FFAF3031000-memory.dmp

memory/1012-4-0x00007FFAFA220000-0x00007FFAFA237000-memory.dmp

memory/1012-3-0x00007FFAFA2A0000-0x00007FFAFA2B8000-memory.dmp

memory/1012-10-0x00007FFAE6AD0000-0x00007FFAE7B7B000-memory.dmp

memory/1012-13-0x00007FFAE80C0000-0x00007FFAE8374000-memory.dmp

memory/1012-21-0x00007FFAE6AD0000-0x00007FFAE7B7B000-memory.dmp

memory/1012-22-0x00007FFAE6460000-0x00007FFAE6660000-memory.dmp

memory/1012-28-0x00000141F0830000-0x00000141F0842000-memory.dmp

memory/1012-27-0x00000141F05C0000-0x00000141F05D1000-memory.dmp

memory/1012-26-0x00000141F0590000-0x00000141F05B3000-memory.dmp

memory/1012-25-0x00007FFAE6380000-0x00007FFAE6398000-memory.dmp

memory/1012-24-0x00007FFAE63A0000-0x00007FFAE63C1000-memory.dmp

memory/1012-23-0x00007FFAE63D0000-0x00007FFAE640F000-memory.dmp

memory/1012-36-0x00007FFAE80C0000-0x00007FFAE8374000-memory.dmp

memory/1012-44-0x00007FFAE6AD0000-0x00007FFAE7B7B000-memory.dmp

memory/1012-61-0x00007FFAE80C0000-0x00007FFAE8374000-memory.dmp

memory/1012-59-0x00007FF681CF0000-0x00007FF681DE8000-memory.dmp

memory/1012-60-0x00007FFAFA3D0000-0x00007FFAFA404000-memory.dmp

memory/1012-62-0x00007FFAE6AD0000-0x00007FFAE7B7B000-memory.dmp