Malware Analysis Report

2024-10-19 02:35

Sample ID 220206-2jfxzaceg2
Target 9d3aab1f80e8d8025bbb38ca3ece961dd2e896041039f1bbdc1ee25996daab37
SHA256 9d3aab1f80e8d8025bbb38ca3ece961dd2e896041039f1bbdc1ee25996daab37
Tags
taurus discovery evasion 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

9d3aab1f80e8d8025bbb38ca3ece961dd2e896041039f1bbdc1ee25996daab37

Threat Level: Known bad

The file 9d3aab1f80e8d8025bbb38ca3ece961dd2e896041039f1bbdc1ee25996daab37 was found to be: Known bad.

Malicious Activity Summary

taurus discovery evasion spyware stealer trojan

Taurus Stealer

Taurus Stealer Payload

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Checks BIOS information in registry

Reads user/profile data of web browsers

Accesses 2FA software files, possible credential harvesting

Maps connected drives based on registry

Checks installed software on the system

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-02-06 22:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-02-06 22:36

Reported

2022-02-06 22:39

Platform

win7-en-20211208

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\po-202103.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
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 for VirtualBox Guest Additions in registry

evasion

Looks for VMWare Tools registry key

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\po-202103.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\po-202103.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

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\po-202103.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\po-202103.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2028 set thread context of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2028 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Windows\SysWOW64\schtasks.exe
PID 2028 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Windows\SysWOW64\schtasks.exe
PID 2028 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Windows\SysWOW64\schtasks.exe
PID 2028 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Windows\SysWOW64\schtasks.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe
PID 2028 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\po-202103.exe C:\Users\Admin\AppData\Local\Temp\po-202103.exe

Processes

C:\Users\Admin\AppData\Local\Temp\po-202103.exe

"C:\Users\Admin\AppData\Local\Temp\po-202103.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YNzYyntiwSm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp82B6.tmp"

C:\Users\Admin\AppData\Local\Temp\po-202103.exe

"C:\Users\Admin\AppData\Local\Temp\po-202103.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 boltanew.ga udp

Files

memory/2028-54-0x0000000001040000-0x0000000001154000-memory.dmp

memory/2028-55-0x0000000075191000-0x0000000075193000-memory.dmp

memory/2028-56-0x0000000000480000-0x000000000048E000-memory.dmp

memory/2028-57-0x0000000000A30000-0x0000000000A31000-memory.dmp

memory/2028-58-0x0000000000D50000-0x0000000000DB6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp82B6.tmp

MD5 473715d7d59a5b35c2e89d9ac4e81ffa
SHA1 a3f89a904121e70b4bf1540af1141860f934461d
SHA256 1307b27071e4aff53304de12942d3adc65fae314410089cb5024e374c0b06bae
SHA512 6fe4fdb5796adfa6244894b6ba6e4d3bf13249dc7b6310d765f07c353efff03e17105b83940dd7c59018eff6aac38949af11cc310fa79a7d3b25b3a63f386f47

memory/756-60-0x0000000000400000-0x000000000043A000-memory.dmp

memory/756-61-0x0000000000400000-0x000000000043A000-memory.dmp

memory/756-62-0x0000000000400000-0x000000000043A000-memory.dmp

memory/756-63-0x0000000000400000-0x000000000043A000-memory.dmp

memory/756-64-0x0000000000400000-0x000000000043A000-memory.dmp

memory/756-65-0x0000000000400000-0x000000000043A000-memory.dmp

memory/756-67-0x0000000000400000-0x000000000043A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-02-06 22:36

Reported

2022-02-06 22:39

Platform

win10v2004-en-20220113

Max time kernel

5s

Max time network

31s

Command Line

"C:\Users\Admin\AppData\Local\Temp\po-202103.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\po-202103.exe

"C:\Users\Admin\AppData\Local\Temp\po-202103.exe"

Network

Files

memory/2768-130-0x0000000000820000-0x0000000000934000-memory.dmp

memory/2768-131-0x00000000053C0000-0x000000000545C000-memory.dmp

memory/2768-132-0x0000000005A10000-0x0000000005FB4000-memory.dmp

memory/2768-133-0x0000000005460000-0x00000000054F2000-memory.dmp