Malware Analysis Report

2024-10-19 02:35

Sample ID 220309-fh9b8sdfe2
Target cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010
SHA256 cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010
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: 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

cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010

Threat Level: Known bad

The file cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010 was found to be: Known bad.

Malicious Activity Summary

taurus discovery evasion spyware stealer trojan

Taurus Stealer

Taurus Stealer Payload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Checks BIOS information in registry

Identifies Wine through registry keys

Reads user/profile data of web browsers

Accesses 2FA software files, possible credential harvesting

Checks installed software on the system

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-03-09 04:53

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-09 04:53

Reported

2022-03-09 05:01

Platform

win10v2004-en-20220113

Max time kernel

207s

Max time network

212s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe"

Signatures

Taurus Stealer

trojan stealer taurus

Taurus Stealer Payload

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

Identifies VirtualBox via ACPI registry values (likely anti-VM)

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\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe

"C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe"

Network

Country Destination Domain Proto
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp

Files

memory/4064-130-0x0000000077B70000-0x0000000077D13000-memory.dmp

memory/4064-131-0x0000000003070000-0x0000000003071000-memory.dmp

memory/4064-132-0x0000000003080000-0x0000000003081000-memory.dmp

memory/4064-133-0x00000000004B0000-0x0000000000B44000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-09 04:53

Reported

2022-03-09 05:00

Platform

win7-20220223-en

Max time kernel

4294229s

Max time network

194s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe"

Signatures

Taurus Stealer

trojan stealer taurus

Taurus Stealer Payload

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

Identifies VirtualBox via ACPI registry values (likely anti-VM)

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\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe

"C:\Users\Admin\AppData\Local\Temp\cbafc5f1a4c6b911fc9e93899a7250f45f99f7af4525bc8541c4ac158b20c010.exe"

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp
NL 185.92.148.230:80 tcp

Files

memory/1652-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

memory/1652-55-0x0000000077CC0000-0x0000000077E40000-memory.dmp

memory/1652-57-0x0000000000440000-0x0000000000441000-memory.dmp

memory/1652-56-0x0000000000450000-0x0000000000451000-memory.dmp

memory/1652-58-0x0000000000470000-0x0000000000472000-memory.dmp

memory/1652-61-0x0000000000930000-0x0000000000931000-memory.dmp

memory/1652-60-0x0000000000920000-0x0000000000921000-memory.dmp

memory/1652-59-0x0000000000460000-0x0000000000461000-memory.dmp

memory/1652-62-0x0000000000D00000-0x0000000001394000-memory.dmp