Malware Analysis Report

2024-10-23 21:29

Sample ID 240410-dblw9afe8x
Target a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe
SHA256 a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3
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

a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3

Threat Level: Known bad

The file a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe was found to be: Known bad.

Malicious Activity Summary

office04 quasar spyware trojan

Detects executables containing common artifacts observed in infostealers

Detects Windows executables referencing non-Windows User-Agents

Quasar family

Quasar payload

Quasar RAT

Detects executables containing common artifacts observed in infostealers

Detects Windows executables referencing non-Windows User-Agents

Looks up external IP address via web service

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-10 02:50

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

2024-04-10 02:50

Reported

2024-04-10 02:52

Platform

win7-20240215-en

Max time kernel

127s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.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

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\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe

"C:\Users\Admin\AppData\Local\Temp\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.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 ppprosyl.con-ip.com udp
NL 147.78.103.173:4001 ppprosyl.con-ip.com tcp

Files

memory/1764-0-0x0000000001190000-0x00000000011EE000-memory.dmp

memory/1764-1-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/1764-2-0x00000000010C0000-0x0000000001100000-memory.dmp

memory/1764-3-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/1764-4-0x00000000010C0000-0x0000000001100000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-10 02:50

Reported

2024-04-10 02:52

Platform

win10v2004-20240226-en

Max time kernel

93s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.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\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe

"C:\Users\Admin\AppData\Local\Temp\a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.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 ppprosyl.con-ip.com udp
NL 147.78.103.173:4001 ppprosyl.con-ip.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 173.103.78.147.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/1524-0-0x0000000000680000-0x00000000006DE000-memory.dmp

memory/1524-1-0x0000000074C80000-0x0000000075430000-memory.dmp

memory/1524-2-0x00000000055E0000-0x0000000005B84000-memory.dmp

memory/1524-3-0x0000000005030000-0x00000000050C2000-memory.dmp

memory/1524-4-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

memory/1524-5-0x0000000004FA0000-0x0000000005006000-memory.dmp

memory/1524-6-0x0000000005CB0000-0x0000000005CC2000-memory.dmp

memory/1524-7-0x00000000061F0000-0x000000000622C000-memory.dmp

memory/1524-8-0x0000000006930000-0x000000000693A000-memory.dmp

memory/1524-9-0x0000000074C80000-0x0000000075430000-memory.dmp

memory/1524-10-0x0000000004EE0000-0x0000000004EF0000-memory.dmp