Malware Analysis Report

2025-01-18 04:07

Sample ID 241028-xppd3sveng
Target Client-built.exe
SHA256 81a1db18f5163f12087a3b1a6a92feb449b2577fdbb67e6eda3fa645813daa14
Tags
quasar office04 spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

81a1db18f5163f12087a3b1a6a92feb449b2577fdbb67e6eda3fa645813daa14

Threat Level: Known bad

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

Malicious Activity Summary

quasar office04 spyware trojan

Quasar RAT

Quasar family

Quasar payload

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-10-28 19:01

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: behavioral2

Detonation Overview

Submitted

2024-10-28 19:01

Reported

2024-10-28 20:39

Platform

win10ltsc2021-20241023-en

Max time kernel

1792s

Max time network

1802s

Command Line

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

Signatures

Quasar RAT

trojan spyware quasar

Quasar family

quasar

Quasar payload

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege 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
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 73.82.67.80.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 195.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 174.117.168.52.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 fd.api.iris.microsoft.com udp
FR 20.74.47.205:443 fd.api.iris.microsoft.com tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp

Files

memory/2536-0-0x00007FFC09333000-0x00007FFC09335000-memory.dmp

memory/2536-1-0x0000000000200000-0x0000000000524000-memory.dmp

memory/2536-2-0x00007FFC09330000-0x00007FFC09DF2000-memory.dmp

memory/2536-3-0x000000001B1A0000-0x000000001B1F0000-memory.dmp

memory/2536-4-0x000000001D780000-0x000000001D832000-memory.dmp

memory/2536-5-0x00007FFC09333000-0x00007FFC09335000-memory.dmp

memory/2536-6-0x00007FFC09330000-0x00007FFC09DF2000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-28 19:01

Reported

2024-10-28 20:39

Platform

win10v2004-20241007-en

Max time kernel

1793s

Max time network

1799s

Command Line

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

Signatures

Quasar RAT

trojan spyware quasar

Quasar family

quasar

Quasar payload

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege 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
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 105.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 115.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
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
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
US 8.8.8.8:53 10.179.89.13.in-addr.arpa udp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp
IT 79.16.224.116:4782 tcp

Files

memory/3400-0-0x00007FFF4B663000-0x00007FFF4B665000-memory.dmp

memory/3400-1-0x0000000000DF0000-0x0000000001114000-memory.dmp

memory/3400-2-0x00007FFF4B660000-0x00007FFF4C121000-memory.dmp

memory/3400-3-0x000000001C0F0000-0x000000001C140000-memory.dmp

memory/3400-4-0x000000001C200000-0x000000001C2B2000-memory.dmp

memory/3400-5-0x00007FFF4B663000-0x00007FFF4B665000-memory.dmp

memory/3400-6-0x00007FFF4B660000-0x00007FFF4C121000-memory.dmp