Malware Analysis Report

2025-01-18 04:26

Sample ID 231201-fwqgaafb64
Target loldestroyer.exe
SHA256 48c104cd33329e1faf768c90d9dbd6dee4e820ee61c647ab1597941cdae5a476
Tags
office04 quasar spyware stealer 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

48c104cd33329e1faf768c90d9dbd6dee4e820ee61c647ab1597941cdae5a476

Threat Level: Known bad

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

Malicious Activity Summary

office04 quasar spyware stealer trojan

Quasar family

Quasar RAT

Quasar payload

Executes dropped EXE

Reads user/profile data of web browsers

Legitimate hosting services abused for malware hosting/C2

Drops file in System32 directory

Unsigned PE

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious use of SetWindowsHookEx

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-01 05:13

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

2023-12-01 05:13

Reported

2023-12-01 05:16

Platform

win11-20231128-en

Max time kernel

156s

Max time network

167s

Command Line

"C:\Users\Admin\AppData\Local\Temp\loldestroyer.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
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\system32\SubDir\Client.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\SubDir C:\Users\Admin\AppData\Local\Temp\loldestroyer.exe N/A
File opened for modification C:\Windows\system32\SubDir\Client.exe C:\Windows\system32\SubDir\Client.exe N/A
File opened for modification C:\Windows\system32\SubDir C:\Windows\system32\SubDir\Client.exe N/A
File created C:\Windows\system32\SubDir\Client.exe C:\Users\Admin\AppData\Local\Temp\loldestroyer.exe N/A
File opened for modification C:\Windows\system32\SubDir\Client.exe C:\Users\Admin\AppData\Local\Temp\loldestroyer.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\loldestroyer.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\SubDir\Client.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\SubDir\Client.exe N/A

Uses Task Scheduler COM API

persistence

Processes

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

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

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "epic" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f

C:\Windows\system32\SubDir\Client.exe

"C:\Windows\system32\SubDir\Client.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "epic" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
US 13.52.233.241:11792 2.tcp.us-cal-1.ngrok.io tcp
DE 195.201.57.90:443 ipwho.is tcp
US 13.107.21.200:443 www.bing.com tcp
US 52.168.117.171:443 browser.pipe.aria.microsoft.com tcp
NL 88.221.24.122:443 r.bing.com tcp
NL 88.221.24.122:443 r.bing.com tcp
NL 88.221.24.122:443 r.bing.com tcp
NL 88.221.24.122:443 r.bing.com tcp
NL 88.221.24.122:443 r.bing.com tcp
NL 88.221.24.122:443 r.bing.com tcp
US 128.116.102.3:80 roblox.com tcp
US 128.116.102.3:443 roblox.com tcp

Files

memory/1716-0-0x0000000000690000-0x00000000009B4000-memory.dmp

memory/1716-1-0x00007FFB20680000-0x00007FFB21142000-memory.dmp

memory/1716-2-0x000000001B920000-0x000000001B930000-memory.dmp

C:\Windows\System32\SubDir\Client.exe

MD5 fd19dff19426de33ff1b16ea4ba48b55
SHA1 45200a4b3f66eca4374e7efe40ae08775b1716b6
SHA256 48c104cd33329e1faf768c90d9dbd6dee4e820ee61c647ab1597941cdae5a476
SHA512 260a1a3058216e91e687f630d3bdf12cb55e506b2caa53ab7a6518cb1437405e6e00fee10bb5988b40fb84cf714817a68ab81678a36b889a72e9720c770d6241

C:\Windows\system32\SubDir\Client.exe

MD5 fd19dff19426de33ff1b16ea4ba48b55
SHA1 45200a4b3f66eca4374e7efe40ae08775b1716b6
SHA256 48c104cd33329e1faf768c90d9dbd6dee4e820ee61c647ab1597941cdae5a476
SHA512 260a1a3058216e91e687f630d3bdf12cb55e506b2caa53ab7a6518cb1437405e6e00fee10bb5988b40fb84cf714817a68ab81678a36b889a72e9720c770d6241

memory/2972-10-0x00007FFB20680000-0x00007FFB21142000-memory.dmp

memory/1716-9-0x00007FFB20680000-0x00007FFB21142000-memory.dmp

memory/2972-11-0x000000001B340000-0x000000001B350000-memory.dmp

memory/2972-12-0x00000000027A0000-0x00000000027F0000-memory.dmp

memory/2972-13-0x000000001BB00000-0x000000001BBB2000-memory.dmp

memory/2972-14-0x00007FFB20680000-0x00007FFB21142000-memory.dmp

memory/2972-15-0x000000001B340000-0x000000001B350000-memory.dmp

memory/2972-16-0x000000001B2F0000-0x000000001B302000-memory.dmp

memory/2972-17-0x000000001BA80000-0x000000001BABC000-memory.dmp

memory/2972-18-0x000000001C610000-0x000000001C7C3000-memory.dmp

memory/2972-19-0x000000001C610000-0x000000001C7C3000-memory.dmp

memory/2972-20-0x000000001C610000-0x000000001C7C3000-memory.dmp

memory/2972-21-0x000000001C610000-0x000000001C7C3000-memory.dmp

memory/2972-22-0x000000001C610000-0x000000001C7C3000-memory.dmp

memory/2972-23-0x000000001C610000-0x000000001C7C3000-memory.dmp