Malware Analysis Report

2025-04-03 09:37

Sample ID 250226-kzjv5atlt3
Target f398330ff76c75dbaffe5c18078c35e5.exe
SHA256 81adc7b98a97b77b6259fe66d9f5919ad55de88ff242637de023ee856a095699
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

81adc7b98a97b77b6259fe66d9f5919ad55de88ff242637de023ee856a095699

Threat Level: Known bad

The file f398330ff76c75dbaffe5c18078c35e5.exe was found to be: Known bad.

Malicious Activity Summary

systembc defense_evasion discovery trojan

SystemBC

Systembc family

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

Executes dropped EXE

Identifies Wine through registry keys

Checks BIOS information in registry

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

2025-02-26 09:02

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-26 09:02

Reported

2025-02-26 09:04

Platform

win7-20240903-en

Max time kernel

142s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.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\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\seqtpt\vrqp.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\seqtpt\vrqp.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\seqtpt\vrqp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\seqtpt\vrqp.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine C:\ProgramData\seqtpt\vrqp.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
N/A N/A C:\ProgramData\seqtpt\vrqp.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\f398330ff76c75dbaffe5c18078c35e5.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\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\seqtpt\vrqp.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
N/A N/A C:\ProgramData\seqtpt\vrqp.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2976 wrote to memory of 2792 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\seqtpt\vrqp.exe
PID 2976 wrote to memory of 2792 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\seqtpt\vrqp.exe
PID 2976 wrote to memory of 2792 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\seqtpt\vrqp.exe
PID 2976 wrote to memory of 2792 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\seqtpt\vrqp.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe

"C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {7902B381-DDEF-4CA5-A053-25CEFB16B899} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]

C:\ProgramData\seqtpt\vrqp.exe

C:\ProgramData\seqtpt\vrqp.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 towerbingobongoboom.com udp
DE 93.186.202.3:4000 towerbingobongoboom.com tcp
DE 93.186.202.3:5112 towerbingobongoboom.com tcp

Files

memory/2104-0-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-1-0x00000000777A0000-0x00000000777A2000-memory.dmp

memory/2104-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/2104-4-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-6-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-7-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-8-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-9-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-10-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-11-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-12-0x0000000000400000-0x0000000000846000-memory.dmp

C:\ProgramData\seqtpt\vrqp.exe

MD5 f398330ff76c75dbaffe5c18078c35e5
SHA1 97c7b2fa744cdf86ce74322f0a683b260e21d188
SHA256 81adc7b98a97b77b6259fe66d9f5919ad55de88ff242637de023ee856a095699
SHA512 69768f2338ceff5e0872ef066201a3b06ad30b31138524d62943982d67dd046a8cd2051a9730a8e81ea93404fddd734fa1c6cab8ccb5689fd343572604c8cb8c

memory/2792-15-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-16-0x0000000000400000-0x0000000000846000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 dd01a870f67e51bb46cc4166d39ded00
SHA1 dcc87d4de29d681973c6e6f53a25b8be8f581644
SHA256 45f7e29f1e0a908a53f033093f1307442591b79cb080159f3282fb860d671bc4
SHA512 8d4edc61536cb7e4afaf82cfcb45386d3ed8badcf9a1fbae86f4c15f4fc01d2bab683ad785897df0f0b38e55638cfcddc13f2e12faccbbe74c5a0c1b0afba4ce

memory/2792-18-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-19-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-20-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-21-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-22-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-23-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-24-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2104-25-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-26-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-27-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-28-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-29-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-30-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-31-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-32-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-33-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2792-34-0x0000000000400000-0x0000000000846000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-26 09:02

Reported

2025-02-26 09:04

Platform

win10v2004-20250217-en

Max time kernel

144s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.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\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\egkflhe\louckpo.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\egkflhe\louckpo.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\egkflhe\louckpo.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\egkflhe\louckpo.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Software\Wine C:\ProgramData\egkflhe\louckpo.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe N/A
N/A N/A C:\ProgramData\egkflhe\louckpo.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\f398330ff76c75dbaffe5c18078c35e5.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\f398330ff76c75dbaffe5c18078c35e5.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\egkflhe\louckpo.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe

"C:\Users\Admin\AppData\Local\Temp\f398330ff76c75dbaffe5c18078c35e5.exe"

C:\ProgramData\egkflhe\louckpo.exe

C:\ProgramData\egkflhe\louckpo.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 towerbingobongoboom.com udp
DE 93.186.202.3:4000 towerbingobongoboom.com tcp
DE 93.186.202.3:5419 towerbingobongoboom.com tcp
US 150.171.28.10:443 tcp
US 150.171.28.10:443 tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/1668-0-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-1-0x00000000773A4000-0x00000000773A6000-memory.dmp

memory/1668-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/1668-4-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-6-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-7-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-8-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-9-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-10-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-11-0x0000000000400000-0x0000000000846000-memory.dmp

C:\ProgramData\egkflhe\louckpo.exe

MD5 f398330ff76c75dbaffe5c18078c35e5
SHA1 97c7b2fa744cdf86ce74322f0a683b260e21d188
SHA256 81adc7b98a97b77b6259fe66d9f5919ad55de88ff242637de023ee856a095699
SHA512 69768f2338ceff5e0872ef066201a3b06ad30b31138524d62943982d67dd046a8cd2051a9730a8e81ea93404fddd734fa1c6cab8ccb5689fd343572604c8cb8c

memory/1228-14-0x0000000000400000-0x0000000000846000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 dcd98a2848313fa57964ac856b10d40c
SHA1 9398bc6581ad6a37a24b59aaaaa899ffe612c01e
SHA256 34cd134a8adb09ab8b61134aeacb31db0a3c7134b57ad47ad3aa46696800cc31
SHA512 cab1ad22ea8a1440459866ca8710287e2a665b39a6b68f4f3803c7e897ac0eccd9771018a86e63ac8cd53bd3be5a9ebeea8bd38991fbaaea1b429e22b7ad8093

memory/1228-16-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-17-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-18-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-19-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-20-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-21-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1668-23-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-24-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-25-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-26-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-27-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-28-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-29-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-30-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-31-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1228-32-0x0000000000400000-0x0000000000846000-memory.dmp