Malware Analysis Report

2024-10-23 17:13

Sample ID 210907-g8d5fsfcgn
Target Taurus.exe
SHA256 ff18c6551b984365758e45a28561521883ae4abf3e45c05b27eefed26d8cce8d
Tags
taurus discovery spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

ff18c6551b984365758e45a28561521883ae4abf3e45c05b27eefed26d8cce8d

Threat Level: Known bad

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

Malicious Activity Summary

taurus discovery spyware stealer trojan

Taurus Stealer

Taurus Stealer Payload

Deletes itself

Reads user/profile data of web browsers

Accesses 2FA software files, possible credential harvesting

Checks installed software on the system

Delays execution with timeout.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-09-07 06:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-09-07 06:28

Reported

2021-09-07 06:30

Platform

win7-en

Max time kernel

136s

Max time network

139s

Command Line

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

Signatures

Taurus Stealer

trojan stealer taurus

Taurus Stealer Payload

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

Deletes itself

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

Reads user/profile data of web browsers

spyware stealer

Accesses 2FA software files, possible credential harvesting

spyware stealer

Checks installed software on the system

discovery

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\Taurus.exe

C:\Windows\SysWOW64\timeout.exe

timeout /t 3

Network

Country Destination Domain Proto
NL 5.39.222.46:80 5.39.222.46 tcp
NL 5.39.222.46:80 5.39.222.46 tcp

Files

memory/1840-53-0x00000000002D0000-0x0000000000305000-memory.dmp

memory/1840-54-0x00000000758D1000-0x00000000758D3000-memory.dmp

memory/1840-55-0x0000000000400000-0x0000000005FE8000-memory.dmp

memory/548-56-0x0000000000000000-mapping.dmp

memory/1140-57-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-09-07 06:28

Reported

2021-09-07 06:31

Platform

win10-en

Max time kernel

49s

Max time network

135s

Command Line

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

Signatures

Taurus Stealer

trojan stealer taurus

Taurus Stealer Payload

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

Reads user/profile data of web browsers

spyware stealer

Accesses 2FA software files, possible credential harvesting

spyware stealer

Checks installed software on the system

discovery

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 744 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\Taurus.exe C:\Windows\SysWOW64\cmd.exe
PID 744 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\Taurus.exe C:\Windows\SysWOW64\cmd.exe
PID 744 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\Taurus.exe C:\Windows\SysWOW64\cmd.exe
PID 3560 wrote to memory of 3612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3560 wrote to memory of 3612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3560 wrote to memory of 3612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\Taurus.exe

C:\Windows\SysWOW64\timeout.exe

timeout /t 3

Network

Country Destination Domain Proto
NL 5.39.222.46:80 5.39.222.46 tcp
NL 5.39.222.46:80 5.39.222.46 tcp

Files

memory/744-115-0x0000000005FF0000-0x000000000609E000-memory.dmp

memory/744-116-0x0000000000400000-0x0000000005FE8000-memory.dmp

memory/3560-117-0x0000000000000000-mapping.dmp

memory/3612-118-0x0000000000000000-mapping.dmp