Malware Analysis Report

2025-01-18 04:25

Sample ID 231219-vcc46sbac3
Target 61d8551b55b55b3d929e2281362b9513
SHA256 61ac9f591b1d67f0c954049d2e6d15cebf213055d6ed6ee0cada7a1f295b1b96
Tags
quasar office04 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

61ac9f591b1d67f0c954049d2e6d15cebf213055d6ed6ee0cada7a1f295b1b96

Threat Level: Known bad

The file 61d8551b55b55b3d929e2281362b9513 was found to be: Known bad.

Malicious Activity Summary

quasar office04 spyware trojan

Quasar payload

Quasar RAT

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in System32 directory

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 16:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 16:50

Reported

2023-12-19 20:33

Platform

win7-20231215-en

Max time kernel

142s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe

"C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 1080

Network

N/A

Files

memory/2188-0-0x0000000000110000-0x0000000000510000-memory.dmp

memory/2188-1-0x0000000074A60000-0x000000007514E000-memory.dmp

memory/2188-2-0x0000000000110000-0x0000000000510000-memory.dmp

memory/2188-3-0x0000000000B60000-0x0000000000BA0000-memory.dmp

memory/2188-6-0x0000000074A60000-0x000000007514E000-memory.dmp

memory/2188-7-0x0000000000B60000-0x0000000000BA0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 16:50

Reported

2023-12-19 20:33

Platform

win10v2004-20231215-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.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
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A
N/A N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A

Creates scheduled task(s)

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe

"C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "svhost.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\61d8551b55b55b3d929e2281362b9513.exe" /rl HIGHEST /f

C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe

"C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "svhost.exe" /sc ONLOGON /tr "C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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 1.112.95.208.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 225.191.13.3.in-addr.arpa udp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 3.13.191.225:14530 0.tcp.ngrok.io 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 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 49.179.17.96.in-addr.arpa udp
US 3.13.191.225:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 232.7.17.3.in-addr.arpa udp
US 3.17.7.232:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 3.17.7.232:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 56.179.17.96.in-addr.arpa udp
US 3.17.7.232:14530 0.tcp.ngrok.io tcp
US 3.17.7.232:14530 0.tcp.ngrok.io tcp
US 3.17.7.232:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 40.30.22.3.in-addr.arpa udp
US 3.22.30.40:14530 0.tcp.ngrok.io tcp
US 3.22.30.40:14530 0.tcp.ngrok.io tcp
US 3.22.30.40:14530 0.tcp.ngrok.io tcp
US 3.22.30.40:14530 0.tcp.ngrok.io tcp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14530 0.tcp.ngrok.io tcp

Files

memory/4932-0-0x0000000001000000-0x0000000001400000-memory.dmp

memory/4932-1-0x0000000001000000-0x0000000001400000-memory.dmp

memory/4932-2-0x0000000074340000-0x0000000074AF0000-memory.dmp

memory/4932-3-0x00000000078A0000-0x0000000007E44000-memory.dmp

memory/4932-4-0x0000000007410000-0x00000000074A2000-memory.dmp

memory/4932-5-0x0000000007520000-0x0000000007530000-memory.dmp

memory/4932-6-0x00000000074B0000-0x0000000007516000-memory.dmp

memory/4932-7-0x0000000008410000-0x0000000008422000-memory.dmp

memory/4932-8-0x0000000008830000-0x000000000886C000-memory.dmp

C:\Windows\SysWOW64\SubDir\Diciple Cheats Loader-Protected.exe

MD5 61d8551b55b55b3d929e2281362b9513
SHA1 3e140d3c4e8e261bd5ff3308bbf0d03cb288f278
SHA256 61ac9f591b1d67f0c954049d2e6d15cebf213055d6ed6ee0cada7a1f295b1b96
SHA512 c093444f4dcc78db595e42322e463747d980b2dbd6a51a88ac620d9728e4c457e9656777a624302a123fafd473a3b374d5d9cfe3b0f0e755695fb9ffc95e731c

memory/3100-13-0x0000000000BB0000-0x0000000000FB0000-memory.dmp

memory/4932-17-0x0000000001000000-0x0000000001400000-memory.dmp

memory/3100-19-0x0000000074340000-0x0000000074AF0000-memory.dmp

memory/3100-18-0x0000000000BB0000-0x0000000000FB0000-memory.dmp

memory/4932-21-0x0000000074340000-0x0000000074AF0000-memory.dmp

memory/3100-20-0x0000000000BB0000-0x0000000000FB0000-memory.dmp

memory/3100-22-0x0000000006F10000-0x0000000006F20000-memory.dmp

memory/3100-24-0x00000000086D0000-0x00000000086DA000-memory.dmp

memory/3100-26-0x0000000000BB0000-0x0000000000FB0000-memory.dmp

memory/3100-28-0x0000000074340000-0x0000000074AF0000-memory.dmp

memory/3100-29-0x0000000006F10000-0x0000000006F20000-memory.dmp