Malware Analysis Report

2025-01-18 04:35

Sample ID 240106-ltke5scgcl
Target Client-built.exe
SHA256 4e01c76200fe5e4cde437fdd12b42c9d2c884018b7f9b89e097ff53ee4e75ec9
Tags
office04 quasar 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 Overview

score
10/10

SHA256

4e01c76200fe5e4cde437fdd12b42c9d2c884018b7f9b89e097ff53ee4e75ec9

Threat Level: Known bad

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

Malicious Activity Summary

office04 quasar spyware trojan

Quasar RAT

Quasar family

Quasar payload

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-06 09:49

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

2024-01-06 09:49

Reported

2024-01-06 09:53

Platform

win7-20231215-en

Max time kernel

207s

Max time network

215s

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
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp
BG 91.92.251.28:4782 tcp

Files

memory/2088-0-0x0000000000260000-0x0000000000584000-memory.dmp

memory/2088-1-0x000007FEF61E0000-0x000007FEF6BCC000-memory.dmp

memory/2088-2-0x000000001B4F0000-0x000000001B570000-memory.dmp

memory/2088-3-0x000007FEF61E0000-0x000007FEF6BCC000-memory.dmp