Malware Analysis Report

2024-10-19 07:15

Sample ID 240904-pglzzs1drb
Target tmk.scr.exe
SHA256 aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb
Tags
chaos ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb

Threat Level: Known bad

The file tmk.scr.exe was found to be: Known bad.

Malicious Activity Summary

chaos ransomware

Chaos family

Chaos

Chaos Ransomware

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-09-04 12:18

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: behavioral2

Detonation Overview

Submitted

2024-09-04 12:18

Reported

2024-09-04 12:20

Platform

win10v2004-20240802-en

Max time kernel

90s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe

"C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 52.111.229.48:443 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/4332-0-0x00007FFC43A63000-0x00007FFC43A65000-memory.dmp

memory/4332-1-0x0000000000FC0000-0x000000000104C000-memory.dmp

memory/4332-2-0x00007FFC43A60000-0x00007FFC44521000-memory.dmp

memory/4332-3-0x00007FFC43A60000-0x00007FFC44521000-memory.dmp

memory/4332-4-0x00007FFC43A63000-0x00007FFC43A65000-memory.dmp

memory/4332-5-0x00007FFC43A60000-0x00007FFC44521000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-04 12:18

Reported

2024-09-04 12:20

Platform

win7-20240708-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\tmk.scr.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\tmk.scr.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe

"C:\Users\Admin\AppData\Local\Temp\tmk.scr.exe"

Network

N/A

Files

memory/2364-3-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

memory/2364-2-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

memory/2364-1-0x00000000013E0000-0x000000000146C000-memory.dmp

memory/2364-0-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

memory/2364-4-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

memory/2364-5-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp