Malware Analysis Report

2025-01-18 04:25

Sample ID 231202-shv6tsde9v
Target bSee.exe
SHA256 d47e620d1c305da86a151ae4e615aedcb53448c66808998251b407831d8f669b
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d47e620d1c305da86a151ae4e615aedcb53448c66808998251b407831d8f669b

Threat Level: Known bad

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

Malicious Activity Summary

quasar office04 spyware trojan

Quasar RAT

Quasar family

Quasar payload

Looks up external IP address via web service

Unsigned PE

Enumerates physical storage devices

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-02 15:08

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: behavioral2

Detonation Overview

Submitted

2023-12-02 15:08

Reported

2023-12-02 15:10

Platform

win10v2004-20231127-en

Max time kernel

141s

Max time network

148s

Command Line

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

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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\bSee.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 242.194.19.2.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.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 nodetecton.ddns.net udp
BR 179.104.80.89:5552 nodetecton.ddns.net tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
BR 179.104.80.89:5552 nodetecton.ddns.net tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 65.252.72.23.in-addr.arpa udp
BR 179.104.80.89:5552 nodetecton.ddns.net tcp
US 8.8.8.8:53 nodetecton.ddns.net udp
BR 179.104.80.89:5552 nodetecton.ddns.net tcp
BR 179.104.80.89:5552 nodetecton.ddns.net tcp
US 8.8.8.8:53 nodetecton.ddns.net udp
BR 179.104.80.89:5552 nodetecton.ddns.net tcp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

memory/3164-0-0x0000000000170000-0x00000000001CE000-memory.dmp

memory/3164-1-0x00000000746C0000-0x0000000074E70000-memory.dmp

memory/3164-2-0x0000000005070000-0x0000000005614000-memory.dmp

memory/3164-3-0x0000000004C60000-0x0000000004CF2000-memory.dmp

memory/3164-4-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

memory/3164-5-0x0000000004E00000-0x0000000004E66000-memory.dmp

memory/3164-6-0x0000000005C20000-0x0000000005C32000-memory.dmp

memory/3164-7-0x0000000006060000-0x000000000609C000-memory.dmp

memory/3164-8-0x00000000746C0000-0x0000000074E70000-memory.dmp

memory/3164-9-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

memory/3164-10-0x0000000006220000-0x000000000622A000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-02 15:08

Reported

2023-12-02 15:10

Platform

win7-20231201-en

Max time kernel

150s

Max time network

148s

Command Line

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

Looks up external IP address via web service

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

Enumerates physical storage devices

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1640 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 2568 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2568 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2568 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2568 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2568 wrote to memory of 2648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2568 wrote to memory of 2648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2568 wrote to memory of 2648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2568 wrote to memory of 2648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2568 wrote to memory of 1848 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 2568 wrote to memory of 1848 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 2568 wrote to memory of 1848 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 2568 wrote to memory of 1848 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 1848 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1848 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1848 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1848 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\bSee.exe C:\Windows\SysWOW64\cmd.exe
PID 1896 wrote to memory of 1740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1896 wrote to memory of 1740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1896 wrote to memory of 1740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1896 wrote to memory of 1740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1896 wrote to memory of 2296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1896 wrote to memory of 2296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1896 wrote to memory of 2296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1896 wrote to memory of 2296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1896 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 1896 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 1896 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe
PID 1896 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\bSee.exe

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\pFtLFvLBa3ZG.bat" "

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\PING.EXE

ping -n 10 localhost

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

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

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\uRlhpQVuyEQZ.bat" "

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\PING.EXE

ping -n 10 localhost

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 freegeoip.net udp
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 nodetecton.ddns.net udp
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 freegeoip.net udp
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 nodetecton.ddns.net udp
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 freegeoip.net udp

Files

memory/1640-0-0x0000000000020000-0x000000000007E000-memory.dmp

memory/1640-1-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/1640-2-0x0000000004940000-0x0000000004980000-memory.dmp

memory/1640-3-0x0000000074A70000-0x000000007515E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\pFtLFvLBa3ZG.bat

MD5 0115c0f61b78219b7c53994dd7efbc40
SHA1 669521deacdd15c81098dd4d2d67049eebbe98a2
SHA256 ead907f8aadbb143cf22a393bbaf19bb369a9cb041195726eb1bff9a476aa467
SHA512 ee9d5373c5319ca47be96fe1eacac0eee6238c577045701711873fc1039896d940e56304522ae2e38fcb0a2bb7f797c172bd76cb828ce90b5896eb971ebd34e1

C:\Users\Admin\AppData\Local\Temp\pFtLFvLBa3ZG.bat

MD5 0115c0f61b78219b7c53994dd7efbc40
SHA1 669521deacdd15c81098dd4d2d67049eebbe98a2
SHA256 ead907f8aadbb143cf22a393bbaf19bb369a9cb041195726eb1bff9a476aa467
SHA512 ee9d5373c5319ca47be96fe1eacac0eee6238c577045701711873fc1039896d940e56304522ae2e38fcb0a2bb7f797c172bd76cb828ce90b5896eb971ebd34e1

memory/1640-13-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/1848-14-0x0000000001220000-0x000000000127E000-memory.dmp

memory/1848-15-0x0000000074A20000-0x000000007510E000-memory.dmp

memory/1848-16-0x0000000004A40000-0x0000000004A80000-memory.dmp

memory/1848-17-0x0000000074A20000-0x000000007510E000-memory.dmp

memory/1848-18-0x0000000004A40000-0x0000000004A80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\uRlhpQVuyEQZ.bat

MD5 c6e5f13489731f3b0e106a6d628ba419
SHA1 6ca0fc67ef2c4923bd6148aa63dfd73efc02a64c
SHA256 a83c3d6ab33c01b54c99c309fbb68feb6113546e348b261ecd05d7ab6d4ff041
SHA512 862eeda7c906a6d024908a71a28a4a0846fb96d2a7dfd0c2388772f9cefa8f8be09f3bf6286ccc2180a9b174be1524d580a55c6358726bec2ee44f576e1f73ef

C:\Users\Admin\AppData\Local\Temp\uRlhpQVuyEQZ.bat

MD5 c6e5f13489731f3b0e106a6d628ba419
SHA1 6ca0fc67ef2c4923bd6148aa63dfd73efc02a64c
SHA256 a83c3d6ab33c01b54c99c309fbb68feb6113546e348b261ecd05d7ab6d4ff041
SHA512 862eeda7c906a6d024908a71a28a4a0846fb96d2a7dfd0c2388772f9cefa8f8be09f3bf6286ccc2180a9b174be1524d580a55c6358726bec2ee44f576e1f73ef

memory/1848-28-0x0000000074A20000-0x000000007510E000-memory.dmp

memory/1496-29-0x0000000001220000-0x000000000127E000-memory.dmp

memory/1496-30-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/1496-31-0x0000000074A70000-0x000000007515E000-memory.dmp