Malware Analysis Report

2025-01-22 08:43

Sample ID 241027-sbaxbazbkq
Target 1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4
SHA256 1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4
Tags
quasar persistence spyware trojan
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

1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4

Threat Level: Known bad

The file 1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4 was found to be: Known bad.

Malicious Activity Summary

quasar persistence spyware trojan

Quasar RAT

Quasar family

Quasar payload

Adds Run key to start application

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-27 14:56

Signatures

Quasar family

quasar

Quasar payload

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-27 14:56

Reported

2024-10-27 14:59

Platform

win7-20240903-en

Max time kernel

132s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar family

quasar

Quasar payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Disk Partition = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe\"" C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe

"C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe"

Network

Country Destination Domain Proto
SE 185.65.135.247:56800 tcp
SE 185.65.135.247:56800 tcp
SE 185.65.135.247:56800 tcp
SE 185.65.135.247:56800 tcp

Files

memory/2400-0-0x000007FEF5213000-0x000007FEF5214000-memory.dmp

memory/2400-1-0x0000000001250000-0x00000000018AA000-memory.dmp

memory/2400-2-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

memory/2400-3-0x000007FEF5213000-0x000007FEF5214000-memory.dmp

memory/2400-4-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-27 14:56

Reported

2024-10-27 14:59

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar family

quasar

Quasar payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Disk Partition = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe\"" C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe

"C:\Users\Admin\AppData\Local\Temp\1afd0e6ec45c974659fc3d252c9f60da06304324d332ab20025fc51b6819e6b4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
SE 185.65.135.247:56800 tcp
US 8.8.8.8:53 72.190.18.2.in-addr.arpa udp
SE 185.65.135.247:56800 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
SE 185.65.135.247:56800 tcp
SE 185.65.135.247:56800 tcp
US 8.8.8.8:53 udp

Files

memory/4588-0-0x00007FF8E41C3000-0x00007FF8E41C5000-memory.dmp

memory/4588-1-0x00000000007C0000-0x0000000000E1A000-memory.dmp

memory/4588-2-0x00007FF8E41C0000-0x00007FF8E4C81000-memory.dmp

memory/4588-3-0x00007FF8E41C3000-0x00007FF8E41C5000-memory.dmp

memory/4588-4-0x00007FF8E41C0000-0x00007FF8E4C81000-memory.dmp

memory/4588-5-0x00000000030E0000-0x0000000003130000-memory.dmp

memory/4588-6-0x000000001C280000-0x000000001C332000-memory.dmp