Malware Analysis Report

2025-04-14 04:54

Sample ID 241213-q9ft4sslem
Target rat2.0.rar
SHA256 a86c7bf4b03420d6ae80c4ab78f7dd761d53e1b0eabe2a827f295267a03cb32e
Tags
quasar office04 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

a86c7bf4b03420d6ae80c4ab78f7dd761d53e1b0eabe2a827f295267a03cb32e

Threat Level: Known bad

The file rat2.0.rar was found to be: Known bad.

Malicious Activity Summary

quasar office04 spyware trojan

Quasar RAT

Quasar family

Quasar payload

Executes dropped EXE

Drops file in Program Files directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-12-13 13:57

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

2024-12-13 13:57

Reported

2024-12-13 14:00

Platform

win7-20240903-en

Max time kernel

150s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\rat2.0.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
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Program Files\SubDir\Pygame.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\SubDir\Pygame.exe C:\Users\Admin\AppData\Local\Temp\rat2.0.exe N/A
File opened for modification C:\Program Files\SubDir\Pygame.exe C:\Users\Admin\AppData\Local\Temp\rat2.0.exe N/A
File opened for modification C:\Program Files\SubDir\Pygame.exe C:\Program Files\SubDir\Pygame.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files\SubDir\Pygame.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files\SubDir\Pygame.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2692 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe C:\Program Files\SubDir\Pygame.exe
PID 2692 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe C:\Program Files\SubDir\Pygame.exe
PID 2692 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe C:\Program Files\SubDir\Pygame.exe

Processes

C:\Users\Admin\AppData\Local\Temp\rat2.0.exe

"C:\Users\Admin\AppData\Local\Temp\rat2.0.exe"

C:\Program Files\SubDir\Pygame.exe

"C:\Program Files\SubDir\Pygame.exe"

Network

Country Destination Domain Proto
N/A 192.168.56.1:4782 tcp
N/A 192.168.42.36:4782 tcp
N/A 192.168.56.1:4782 tcp
N/A 192.168.42.36:4782 tcp
N/A 192.168.56.1:4782 tcp
N/A 192.168.42.36:4782 tcp
N/A 192.168.56.1:4782 tcp

Files

memory/2692-0-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

memory/2692-1-0x0000000000250000-0x0000000000574000-memory.dmp

memory/2692-2-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

C:\Program Files\SubDir\Pygame.exe

MD5 0ec9d66f466763887c3d957ef04a601a
SHA1 4f3bd499508c12c1d15142db4ccb3633d4a563f9
SHA256 ca6205581da131085d4fd448d7a6cb47627ebf0eeeb7e42d7c1047d18631c9b0
SHA512 ffcaf78789c63171473cd0d173875bf83860be15505181f431ef8557e6509af78130a1aee8a067e076238028fba229bb442bb738cff9401bdb8d204bc24bd13d

memory/2140-9-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2140-8-0x0000000000890000-0x0000000000BB4000-memory.dmp

memory/2692-10-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2140-11-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2140-12-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-13 13:57

Reported

2024-12-13 14:00

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\rat2.0.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:\Program Files\SubDir\Pygame.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\SubDir\Pygame.exe C:\Users\Admin\AppData\Local\Temp\rat2.0.exe N/A
File opened for modification C:\Program Files\SubDir\Pygame.exe C:\Users\Admin\AppData\Local\Temp\rat2.0.exe N/A
File opened for modification C:\Program Files\SubDir\Pygame.exe C:\Program Files\SubDir\Pygame.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files\SubDir\Pygame.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files\SubDir\Pygame.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4572 wrote to memory of 428 N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe C:\Program Files\SubDir\Pygame.exe
PID 4572 wrote to memory of 428 N/A C:\Users\Admin\AppData\Local\Temp\rat2.0.exe C:\Program Files\SubDir\Pygame.exe

Processes

C:\Users\Admin\AppData\Local\Temp\rat2.0.exe

"C:\Users\Admin\AppData\Local\Temp\rat2.0.exe"

C:\Program Files\SubDir\Pygame.exe

"C:\Program Files\SubDir\Pygame.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 192.168.56.1:4782 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
N/A 192.168.42.36:4782 tcp
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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 192.168.56.1:4782 tcp
US 8.8.8.8:53 20.49.80.91.in-addr.arpa udp
N/A 192.168.42.36:4782 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
N/A 192.168.56.1:4782 tcp
N/A 192.168.42.36:4782 tcp

Files

memory/4572-0-0x00007FFE174C3000-0x00007FFE174C5000-memory.dmp

memory/4572-1-0x0000000000C70000-0x0000000000F94000-memory.dmp

memory/4572-2-0x00007FFE174C0000-0x00007FFE17F81000-memory.dmp

C:\Program Files\SubDir\Pygame.exe

MD5 0ec9d66f466763887c3d957ef04a601a
SHA1 4f3bd499508c12c1d15142db4ccb3633d4a563f9
SHA256 ca6205581da131085d4fd448d7a6cb47627ebf0eeeb7e42d7c1047d18631c9b0
SHA512 ffcaf78789c63171473cd0d173875bf83860be15505181f431ef8557e6509af78130a1aee8a067e076238028fba229bb442bb738cff9401bdb8d204bc24bd13d

memory/428-9-0x00007FFE174C0000-0x00007FFE17F81000-memory.dmp

memory/4572-10-0x00007FFE174C0000-0x00007FFE17F81000-memory.dmp

memory/428-11-0x00007FFE174C0000-0x00007FFE17F81000-memory.dmp

memory/428-12-0x000000001BBD0000-0x000000001BC20000-memory.dmp

memory/428-13-0x000000001BCE0000-0x000000001BD92000-memory.dmp

memory/428-14-0x00007FFE174C0000-0x00007FFE17F81000-memory.dmp