Malware Analysis Report

2024-10-19 02:35

Sample ID 211018-l1xn2sddd3
Target f69508d55acde4c4589e8902b3a9385f
SHA256 8f90035037b571800dea7fd455baf6b75582ce0bc90070f3b65dc4a42ccd7ee8
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

8f90035037b571800dea7fd455baf6b75582ce0bc90070f3b65dc4a42ccd7ee8

Threat Level: Known bad

The file f69508d55acde4c4589e8902b3a9385f 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

2021-10-18 10:00

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-10-18 10:00

Reported

2021-10-18 10:08

Platform

win7-en-20210920

Max time kernel

123s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.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\f69508d55acde4c4589e8902b3a9385f.exe

"C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.exe"

C:\Windows\SysWOW64\cmd.exe

/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.exe

C:\Windows\SysWOW64\timeout.exe

timeout /t 3

Network

Country Destination Domain Proto
US 8.8.8.8:53 gamesboiler.com udp
US 172.67.141.246:443 gamesboiler.com tcp

Files

memory/1596-54-0x000000000191A000-0x000000000193D000-memory.dmp

memory/1596-55-0x00000000757B1000-0x00000000757B3000-memory.dmp

memory/1596-56-0x0000000000220000-0x0000000000258000-memory.dmp

memory/1596-57-0x0000000000400000-0x0000000001788000-memory.dmp

memory/300-58-0x0000000000000000-mapping.dmp

memory/1908-59-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-10-18 10:00

Reported

2021-10-18 10:08

Platform

win10-en-20210920

Max time kernel

154s

Max time network

162s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.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

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\f69508d55acde4c4589e8902b3a9385f.exe

"C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.exe"

C:\Windows\SysWOW64\cmd.exe

/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.exe

C:\Windows\SysWOW64\timeout.exe

timeout /t 3

Network

Country Destination Domain Proto
US 8.8.8.8:53 gamesboiler.com udp
US 104.21.57.51:443 gamesboiler.com tcp
US 8.8.8.8:53 sv.symcb.com udp
US 72.21.91.29:80 sv.symcb.com tcp
US 172.67.141.246:443 gamesboiler.com tcp
US 8.8.8.8:53 s.symcb.com udp
US 72.21.91.29:80 s.symcb.com tcp
US 8.8.8.8:53 crl3.digicert.com udp
US 72.21.91.29:80 crl3.digicert.com tcp
US 8.8.8.8:53 ts-crl.ws.symantec.com udp
US 93.184.220.29:80 ts-crl.ws.symantec.com tcp
US 72.21.91.29:80 crl3.digicert.com tcp
US 93.184.220.29:80 ts-crl.ws.symantec.com tcp
US 72.21.91.29:80 crl3.digicert.com tcp
US 72.21.91.29:80 crl3.digicert.com tcp
US 93.184.220.29:80 ts-crl.ws.symantec.com tcp
US 93.184.220.29:80 ts-crl.ws.symantec.com tcp
US 172.67.141.246:443 gamesboiler.com tcp
US 8.8.8.8:53 time.windows.com udp
NL 20.101.57.9:123 time.windows.com udp
US 72.21.91.29:80 crl3.digicert.com tcp

Files

memory/2412-118-0x0000000001C10000-0x0000000001C48000-memory.dmp

memory/2412-119-0x0000000000400000-0x0000000001788000-memory.dmp

memory/600-120-0x0000000000000000-mapping.dmp

memory/1144-121-0x0000000000000000-mapping.dmp