Malware Analysis Report

2025-01-18 04:07

Sample ID 241103-y7qwaswmel
Target Synapse X.exe
SHA256 64207a7e81e788dd1044a8fa6d6a4f87757cdd870af520a2e44576ac21a6e746
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

64207a7e81e788dd1044a8fa6d6a4f87757cdd870af520a2e44576ac21a6e746

Threat Level: Known bad

The file Synapse X.exe was found to be: Known bad.

Malicious Activity Summary

office04 quasar spyware trojan

Quasar family

Quasar payload

Quasar RAT

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Uses Task Scheduler COM API

Scheduled Task/Job: Scheduled Task

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 20:25

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

2024-11-03 20:25

Reported

2024-11-03 20:28

Platform

win10ltsc2021-20241023-en

Max time kernel

97s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Synapse X.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar family

quasar

Quasar payload

Description Indicator Process Target
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:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
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\Synapse X.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\Synapse X.exe

"C:\Users\Admin\AppData\Local\Temp\Synapse X.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "java updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "java updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 224.122.19.2.in-addr.arpa udp
US 8.8.8.8:53 Inversin-43597.portmap.host udp
DE 193.161.193.99:43597 Inversin-43597.portmap.host tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 99.193.161.193.in-addr.arpa udp
US 8.8.8.8:53 ipwho.is udp
DE 195.201.57.90:443 ipwho.is tcp
US 8.8.8.8:53 90.57.201.195.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 205.122.19.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/2888-0-0x00007FFCFF753000-0x00007FFCFF755000-memory.dmp

memory/2888-1-0x00000000003A0000-0x00000000006C4000-memory.dmp

memory/2888-2-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

MD5 e78c57ec9112a2860d4c07e1535452c6
SHA1 cfb8f58daaa9ae932b2e55c04eb887210cbf0a41
SHA256 64207a7e81e788dd1044a8fa6d6a4f87757cdd870af520a2e44576ac21a6e746
SHA512 50597692c65f476d3f96d43fc97813c2747cacccd542eaf82cb736827ba02fb291e905b9a7410f891eee394f2252f37aceaf26fbc8dcef0ebdd21fbe37fcaf93

memory/992-5-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

memory/992-6-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

memory/992-7-0x000000001C8C0000-0x000000001C910000-memory.dmp

memory/992-8-0x000000001C9D0000-0x000000001CA82000-memory.dmp

memory/992-11-0x000000001C910000-0x000000001C922000-memory.dmp

memory/992-12-0x000000001C970000-0x000000001C9AC000-memory.dmp

memory/2888-13-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

memory/992-14-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

memory/992-15-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp