Malware Analysis Report

2024-08-06 15:57

Sample ID 240525-1j1fyabh94
Target Chaos Ransomware Builder v4.exe
SHA256 f2665f89ba53abd3deb81988c0d5194992214053e77fc89b98b64a31a7504d77
Tags
chaos ransomware
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

f2665f89ba53abd3deb81988c0d5194992214053e77fc89b98b64a31a7504d77

Threat Level: Known bad

The file Chaos Ransomware Builder v4.exe was found to be: Known bad.

Malicious Activity Summary

chaos ransomware

Chaos

Chaos Ransomware

Chaos family

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-25 21:41

Signatures

Chaos Ransomware

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

Chaos family

chaos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-25 21:41

Reported

2024-05-25 21:44

Platform

win7-20240508-en

Max time kernel

120s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe

"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"

Network

N/A

Files

memory/1848-0-0x000007FEF5C73000-0x000007FEF5C74000-memory.dmp

memory/1848-1-0x0000000000B10000-0x0000000000B9E000-memory.dmp

memory/1848-2-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp

memory/1848-3-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp

memory/1848-4-0x000007FEF5C73000-0x000007FEF5C74000-memory.dmp

memory/1848-5-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-25 21:41

Reported

2024-05-25 21:44

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe

"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.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=1408 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
GB 142.250.187.202:443 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 130.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 23.173.189.20.in-addr.arpa udp

Files

memory/2112-0-0x00007FFC8CBB3000-0x00007FFC8CBB5000-memory.dmp

memory/2112-1-0x00000000009D0000-0x0000000000A5E000-memory.dmp

memory/2112-2-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp

memory/2112-3-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp

memory/2112-4-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp

memory/2112-5-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp

memory/2112-6-0x00007FFC8CBB3000-0x00007FFC8CBB5000-memory.dmp

memory/2112-7-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp