Malware Analysis Report

2024-10-23 19:09

Sample ID 240525-kdkwasbg99
Target 2024-05-25_74ac1825148109702a52be3db0aefa02_megazord
SHA256 2447438e200ce5fbb043278cd27960bb7ad9c8aa2767fc9331b5150d0b184b99
Tags
quasar software 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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2447438e200ce5fbb043278cd27960bb7ad9c8aa2767fc9331b5150d0b184b99

Threat Level: Known bad

The file 2024-05-25_74ac1825148109702a52be3db0aefa02_megazord was found to be: Known bad.

Malicious Activity Summary

quasar software spyware trojan

Quasar RAT

Quasar payload

Detects Windows executables referencing non-Windows User-Agents

Detects executables containing common artifacts observed in infostealers

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Modifies data under HKEY_USERS

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-25 08:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-25 08:29

Reported

2024-05-25 08:31

Platform

win7-20240221-en

Max time kernel

117s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-25 08:29

Reported

2024-05-25 08:30

Platform

win10v2004-20240426-en

Max time kernel

55s

Max time network

57s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.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 SetThreadContext

Description Indicator Process Target
PID 2596 set thread context of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "12" C:\Windows\system32\LogonUI.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" C:\Windows\system32\LogonUI.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\shutdown.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\SysWOW64\shutdown.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2596 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 4064 wrote to memory of 1596 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe C:\Windows\SysWOW64\schtasks.exe
PID 4064 wrote to memory of 1596 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe C:\Windows\SysWOW64\schtasks.exe
PID 4064 wrote to memory of 1596 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe C:\Windows\SysWOW64\schtasks.exe
PID 4064 wrote to memory of 4440 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe C:\Windows\SysWOW64\shutdown.exe
PID 4064 wrote to memory of 4440 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe C:\Windows\SysWOW64\shutdown.exe
PID 4064 wrote to memory of 4440 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe C:\Windows\SysWOW64\shutdown.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-25_74ac1825148109702a52be3db0aefa02_megazord.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "software" /sc ONLOGON /tr "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe" /rl HIGHEST /f

C:\Windows\SysWOW64\shutdown.exe

"C:\Windows\System32\shutdown.exe" /s /t 0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa3967055 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 qassar23.ddns.net udp
NL 192.121.102.176:1993 qassar23.ddns.net tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 176.102.121.192.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/4064-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/4064-1-0x000000007452E000-0x000000007452F000-memory.dmp

memory/4064-2-0x0000000005B40000-0x00000000060E4000-memory.dmp

memory/4064-3-0x00000000056C0000-0x0000000005752000-memory.dmp

memory/4064-4-0x0000000074520000-0x0000000074CD0000-memory.dmp

memory/4064-5-0x0000000005620000-0x0000000005686000-memory.dmp

memory/4064-6-0x0000000006570000-0x0000000006582000-memory.dmp

memory/4064-7-0x0000000006AF0000-0x0000000006B2C000-memory.dmp

memory/4064-8-0x0000000007260000-0x000000000726A000-memory.dmp

memory/4064-9-0x000000007452E000-0x000000007452F000-memory.dmp

memory/4064-10-0x0000000074520000-0x0000000074CD0000-memory.dmp

memory/4064-11-0x0000000074520000-0x0000000074CD0000-memory.dmp