Malware Analysis Report

2024-08-06 11:19

Sample ID 240614-y8r5ravcjg
Target Client-Built.exe
SHA256 28cfa18116077b2c03e2c7fa3836f975132cd45acf3a63779f915de4386ea58b
Tags
testing 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

28cfa18116077b2c03e2c7fa3836f975132cd45acf3a63779f915de4386ea58b

Threat Level: Known bad

The file Client-Built.exe was found to be: Known bad.

Malicious Activity Summary

testing quasar spyware trojan

Quasar payload

Quasar RAT

Quasar family

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-14 20:27

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

2024-06-14 20:27

Reported

2024-06-14 20:28

Platform

win11-20240611-en

Max time kernel

7s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Client-Built.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Client-Built.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Client-Built.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Client-Built.exe

"C:\Users\Admin\AppData\Local\Temp\Client-Built.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp

Files

memory/3904-0-0x00007FFCC4293000-0x00007FFCC4295000-memory.dmp

memory/3904-1-0x00000000000A0000-0x00000000003C4000-memory.dmp

memory/3904-2-0x00007FFCC4290000-0x00007FFCC4D52000-memory.dmp

memory/3904-3-0x000000001BA20000-0x000000001BA70000-memory.dmp

memory/3904-4-0x000000001BB30000-0x000000001BBE2000-memory.dmp