Malware Analysis Report

2024-10-19 08:41

Sample ID 240419-bqgvqsde8t
Target 498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe
SHA256 498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964
Tags
office04 quasar spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964

Threat Level: Known bad

The file 498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe was found to be: Known bad.

Malicious Activity Summary

office04 quasar spyware trojan

Quasar family

Detects executables containing common artifacts observed in infostealers

Quasar payload

Quasar RAT

Detects Windows executables referencing non-Windows User-Agents

Detects Windows executables referencing non-Windows User-Agents

Detects executables containing common artifacts observed in infostealers

Looks up external IP address via web service

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-19 01:20

Signatures

Detects Windows executables referencing non-Windows User-Agents

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

Detects executables containing common artifacts observed in infostealers

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

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

2024-04-19 01:20

Reported

2024-04-19 01:23

Platform

win7-20240221-en

Max time kernel

126s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Detects Windows executables referencing non-Windows User-Agents

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

Detects executables containing common artifacts observed in infostealers

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

Looks up external IP address via web service

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe

"C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe"

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 companinuevoano1.con-ip.com udp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp

Files

memory/2028-1-0x0000000074360000-0x0000000074A4E000-memory.dmp

memory/2028-0-0x0000000001080000-0x00000000010DE000-memory.dmp

memory/2028-2-0x0000000004B40000-0x0000000004B80000-memory.dmp

memory/2028-3-0x0000000074360000-0x0000000074A4E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-19 01:20

Reported

2024-04-19 01:23

Platform

win10v2004-20240412-en

Max time kernel

127s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Detects Windows executables referencing non-Windows User-Agents

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

Detects executables containing common artifacts observed in infostealers

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

Looks up external IP address via web service

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe

"C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
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 companinuevoano1.con-ip.com udp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
US 8.8.8.8:53 198.32.209.4.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 121.118.77.104.in-addr.arpa udp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp
CO 179.13.0.175:4782 companinuevoano1.con-ip.com tcp

Files

memory/3260-1-0x0000000074AC0000-0x0000000075270000-memory.dmp

memory/3260-0-0x0000000000760000-0x00000000007BE000-memory.dmp

memory/3260-2-0x00000000057B0000-0x0000000005D54000-memory.dmp

memory/3260-3-0x0000000005200000-0x0000000005292000-memory.dmp

memory/3260-4-0x00000000053C0000-0x00000000053D0000-memory.dmp

memory/3260-5-0x00000000052A0000-0x0000000005306000-memory.dmp

memory/3260-6-0x0000000005730000-0x0000000005742000-memory.dmp

memory/3260-7-0x0000000006420000-0x000000000645C000-memory.dmp

memory/3260-8-0x0000000074AC0000-0x0000000075270000-memory.dmp

memory/3260-9-0x00000000065D0000-0x00000000065DA000-memory.dmp

memory/3260-10-0x00000000053C0000-0x00000000053D0000-memory.dmp