Malware Analysis Report

2025-04-03 09:30

Sample ID 250303-dgm2havmw5
Target ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe
SHA256 ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6
Tags
systembc defense_evasion discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6

Threat Level: Known bad

The file ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe was found to be: Known bad.

Malicious Activity Summary

systembc defense_evasion discovery trojan

Systembc family

SystemBC

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

Checks BIOS information in registry

Executes dropped EXE

Identifies Wine through registry keys

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-03 02:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-03 02:58

Reported

2025-03-03 03:01

Platform

win7-20241010-en

Max time kernel

144s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe"

Signatures

SystemBC

trojan systembc

Systembc family

systembc

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

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\cskt\wrij.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\cskt\wrij.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\cskt\wrij.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\cskt\wrij.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Wine C:\ProgramData\cskt\wrij.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
N/A N/A C:\ProgramData\cskt\wrij.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\Test Task17.job C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\cskt\wrij.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
N/A N/A C:\ProgramData\cskt\wrij.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2724 wrote to memory of 2672 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\cskt\wrij.exe
PID 2724 wrote to memory of 2672 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\cskt\wrij.exe
PID 2724 wrote to memory of 2672 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\cskt\wrij.exe
PID 2724 wrote to memory of 2672 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\cskt\wrij.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe

"C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {72EE04E5-39F3-4E5B-B737-FA201AB80031} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]

C:\ProgramData\cskt\wrij.exe

C:\ProgramData\cskt\wrij.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 towerbingobongoboom.com udp
US 213.209.150.137:4000 towerbingobongoboom.com tcp
US 213.209.150.137:4458 towerbingobongoboom.com tcp

Files

memory/2888-0-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-1-0x0000000077CB0000-0x0000000077CB2000-memory.dmp

memory/2888-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/2888-4-0x0000000000400000-0x0000000000856000-memory.dmp

C:\ProgramData\cskt\wrij.exe

MD5 775d48c5ca9cec5cb17ba4990e100b80
SHA1 d51bdc3fc06fadd66fa0549c0c6924a52f980c91
SHA256 ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6
SHA512 de2a9adf415acf0d300c1d660141d4fcdcd15885750abdfa36253cb848cfb0d14f4529ce66ab8a6227d741fa52c7a6b59dc7253d269e0ffa0ebaa0782146f690

memory/2672-8-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-9-0x0000000000400000-0x0000000000856000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 d6ebd51fa947ceb1793fd14cb5829db2
SHA1 7c1c98327ac8debfc337a6bf5a236e36eea8c682
SHA256 33de1d8a6b91e0d899a2bb318a1028ee339efca71d53ca09fe89b738f6ab14c2
SHA512 d78e4989730dfbdaf8ea2c9ea090fe7e3a106a3e8e0ae03b20757b556caea3d3e528a847f56c030304cb38729922233845c308d9bbe1f5e4907296d164570eb7

memory/2672-12-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-11-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-13-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-14-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-15-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-16-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-17-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-18-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-19-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-20-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-21-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-22-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-23-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-24-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-25-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2888-26-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-28-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-29-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-31-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-30-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-32-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-33-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-34-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-35-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-36-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-37-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2672-38-0x0000000000400000-0x0000000000856000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-03 02:58

Reported

2025-03-03 03:01

Platform

win10v2004-20250217-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe"

Signatures

SystemBC

trojan systembc

Systembc family

systembc

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

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\frgujgn\qwfo.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\frgujgn\qwfo.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\frgujgn\qwfo.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\frgujgn\qwfo.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\Software\Wine C:\ProgramData\frgujgn\qwfo.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
N/A N/A C:\ProgramData\frgujgn\qwfo.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\Test Task17.job C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\frgujgn\qwfo.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe

"C:\Users\Admin\AppData\Local\Temp\ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6.exe"

C:\ProgramData\frgujgn\qwfo.exe

C:\ProgramData\frgujgn\qwfo.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 towerbingobongoboom.com udp
US 213.209.150.137:4000 towerbingobongoboom.com tcp
US 213.209.150.137:4784 towerbingobongoboom.com tcp

Files

memory/736-0-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-1-0x0000000077CF4000-0x0000000077CF6000-memory.dmp

memory/736-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/736-3-0x0000000000400000-0x0000000000856000-memory.dmp

C:\ProgramData\frgujgn\qwfo.exe

MD5 775d48c5ca9cec5cb17ba4990e100b80
SHA1 d51bdc3fc06fadd66fa0549c0c6924a52f980c91
SHA256 ee071cca5d50fc83f595410cd64d06f2c438424497bbafde868ee2356d8886a6
SHA512 de2a9adf415acf0d300c1d660141d4fcdcd15885750abdfa36253cb848cfb0d14f4529ce66ab8a6227d741fa52c7a6b59dc7253d269e0ffa0ebaa0782146f690

memory/3988-8-0x0000000000400000-0x0000000000856000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 d27fbbc89388269b69040dd4d1343b5e
SHA1 f2a8ee511a2a97690e88a08104eeec4a7a9aff44
SHA256 fc303ded0d17c9351daf7d973e14cb332d381da30bd4c05dd72188aacb71b2c3
SHA512 96adfddd3bb94aaad889191b477ac8fd70ea300f24ea26f607a528cbffec60de66744eb371277be63066c6262657c9afc97dee81b231d06f22c27dfd9229c31b

memory/3988-10-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-11-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-12-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-13-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-14-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-15-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-16-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-17-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-19-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-20-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-21-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-22-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-23-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-24-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-25-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-26-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-27-0x0000000000400000-0x0000000000856000-memory.dmp

memory/736-28-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-29-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-30-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-31-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-32-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-33-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-34-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-35-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-36-0x0000000000400000-0x0000000000856000-memory.dmp

memory/3988-37-0x0000000000400000-0x0000000000856000-memory.dmp