Malware Analysis Report

2024-10-23 21:28

Sample ID 240411-2sqhrsfg82
Target RyansProject.rar
SHA256 17f1c062b320bd3c8b938a07f9518affaf837fc253fe20c624187faa114938ae
Tags
quasar office04 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

17f1c062b320bd3c8b938a07f9518affaf837fc253fe20c624187faa114938ae

Threat Level: Known bad

The file RyansProject.rar was found to be: Known bad.

Malicious Activity Summary

quasar office04 spyware trojan

Quasar RAT

Quasar payload

Quasar family

Executes dropped EXE

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: GetForegroundWindowSpam

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-11 22:50

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

2024-04-11 22:50

Reported

2024-04-11 23:08

Platform

win7-20240215-en

Max time kernel

1034s

Max time network

1044s

Command Line

"C:\Users\Admin\AppData\Local\Temp\RyansProject.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A
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\SubDir\Client.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RyansProject.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A

Suspicious use of SetWindowsHookEx

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\RyansProject.exe

"C:\Users\Admin\AppData\Local\Temp\RyansProject.exe"

C:\Windows\system32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"

C:\Windows\system32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt

Network

Country Destination Domain Proto
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp

Files

memory/2204-1-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/2204-0-0x00000000000A0000-0x00000000003C4000-memory.dmp

memory/2204-2-0x000000001AF70000-0x000000001AFF0000-memory.dmp

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

MD5 20edba711349a03803c2f96bbbe18b39
SHA1 675607f2c3510c35ea0784c1051e3a96c3b44416
SHA256 8e3077a2601f2727d79389b445d9e90336a0055c0f5a7ce330cbd4006876f1f9
SHA512 85130c87a19dc29bb6b6c26aea68f7173bf0df69c2a4b80e90bc2e14c19acdb1457f680e69d75c916fe7d546c470da5bb38b970843b33feda74847f5a675ee4e

memory/2204-9-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/2948-8-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/2948-10-0x0000000001320000-0x0000000001644000-memory.dmp

memory/2948-11-0x0000000000BD0000-0x0000000000C50000-memory.dmp

memory/2948-12-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/2948-13-0x0000000000BD0000-0x0000000000C50000-memory.dmp

memory/2348-16-0x0000000000400000-0x0000000000401000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-11 22:50

Reported

2024-04-11 23:08

Platform

win10v2004-20240226-en

Max time kernel

1034s

Max time network

1051s

Command Line

"C:\Users\Admin\AppData\Local\Temp\RyansProject.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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\SubDir\Client.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RyansProject.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Suspicious use of SetWindowsHookEx

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\RyansProject.exe

"C:\Users\Admin\AppData\Local\Temp\RyansProject.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
NL 52.111.243.31:443 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 215.143.182.52.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 203.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 154.173.246.72.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.17.2.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 208.14.97.104.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp
N/A 192.168.1.226:4782 tcp

Files

memory/4824-0-0x0000000000470000-0x0000000000794000-memory.dmp

memory/4824-1-0x00007FF8C1DA0000-0x00007FF8C2861000-memory.dmp

memory/4824-2-0x000000001B500000-0x000000001B510000-memory.dmp

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

MD5 20edba711349a03803c2f96bbbe18b39
SHA1 675607f2c3510c35ea0784c1051e3a96c3b44416
SHA256 8e3077a2601f2727d79389b445d9e90336a0055c0f5a7ce330cbd4006876f1f9
SHA512 85130c87a19dc29bb6b6c26aea68f7173bf0df69c2a4b80e90bc2e14c19acdb1457f680e69d75c916fe7d546c470da5bb38b970843b33feda74847f5a675ee4e

memory/1528-9-0x00007FF8C1DA0000-0x00007FF8C2861000-memory.dmp

memory/4824-10-0x00007FF8C1DA0000-0x00007FF8C2861000-memory.dmp

memory/1528-11-0x00000000032D0000-0x00000000032E0000-memory.dmp

memory/1528-12-0x000000001BC20000-0x000000001BC70000-memory.dmp

memory/1528-13-0x000000001DDE0000-0x000000001DE92000-memory.dmp

memory/1528-14-0x00007FF8C1DA0000-0x00007FF8C2861000-memory.dmp

memory/1528-15-0x00000000032D0000-0x00000000032E0000-memory.dmp