Malware Analysis Report

2024-08-06 11:49

Sample ID 240610-sv1bba1hrj
Target Uni.exe
SHA256 51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
Tags
seroxen quasar spyware trojan
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 Overview

score
10/10

SHA256

51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

Threat Level: Known bad

The file Uni.exe was found to be: Known bad.

Malicious Activity Summary

seroxen quasar spyware trojan

Quasar payload

Quasar RAT

Quasar family

Executes dropped EXE

Looks up external IP address via web service

Unsigned PE

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-10 15:27

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

2024-06-10 15:27

Reported

2024-06-10 15:32

Platform

win10-20240404-en

Max time kernel

234s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Uni.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

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\SCHTASKS.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2948 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Windows\SysWOW64\schtasks.exe
PID 2948 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Windows\SysWOW64\schtasks.exe
PID 2948 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Windows\SysWOW64\schtasks.exe
PID 2948 wrote to memory of 4256 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2948 wrote to memory of 4256 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2948 wrote to memory of 4256 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2948 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Windows\SysWOW64\SCHTASKS.exe
PID 2948 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Windows\SysWOW64\SCHTASKS.exe
PID 2948 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\Uni.exe C:\Windows\SysWOW64\SCHTASKS.exe
PID 4256 wrote to memory of 4252 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 4256 wrote to memory of 4252 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 4256 wrote to memory of 4252 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Uni.exe" /rl HIGHEST /f

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

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

C:\Windows\SysWOW64\SCHTASKS.exe

"SCHTASKS.exe" /create /tn "$77Uni.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Uni.exe'" /sc onlogon /rl HIGHEST

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "SeroXen" /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 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 github.com udp
GB 20.26.156.215:443 github.com tcp
US 8.8.8.8:53 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 215.156.26.20.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
GB 20.26.156.215:443 github.com tcp
US 8.8.8.8:53 panel-slave.gl.at.ply.gg udp
US 147.185.221.19:57059 panel-slave.gl.at.ply.gg tcp
US 8.8.8.8:53 19.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 8.167.79.40.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 147.185.221.19:27892 panel-slave.gl.at.ply.gg tcp
US 147.185.221.19:57059 panel-slave.gl.at.ply.gg tcp

Files

memory/2948-0-0x000000007338E000-0x000000007338F000-memory.dmp

memory/2948-1-0x00000000004B0000-0x000000000051C000-memory.dmp

memory/2948-2-0x00000000053C0000-0x00000000058BE000-memory.dmp

memory/2948-3-0x0000000004EC0000-0x0000000004F52000-memory.dmp

memory/2948-4-0x0000000073380000-0x0000000073A6E000-memory.dmp

memory/2948-5-0x0000000004E10000-0x0000000004E76000-memory.dmp

memory/2948-6-0x0000000004E80000-0x0000000004E92000-memory.dmp

memory/2948-7-0x0000000005DF0000-0x0000000005E2E000-memory.dmp

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

MD5 b70fdac25a99501e3cae11f1b775249e
SHA1 3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71
SHA256 51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
SHA512 43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

memory/4256-13-0x0000000073380000-0x0000000073A6E000-memory.dmp

memory/4256-14-0x0000000073380000-0x0000000073A6E000-memory.dmp

memory/2948-16-0x0000000073380000-0x0000000073A6E000-memory.dmp

memory/4256-18-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

memory/4256-19-0x0000000073380000-0x0000000073A6E000-memory.dmp

memory/4256-20-0x0000000073380000-0x0000000073A6E000-memory.dmp