Malware Analysis Report

2025-04-03 09:13

Sample ID 250226-kxajnstjx8
Target 77c6d4944106ec80bb717043741b57da.exe
SHA256 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80
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

686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80

Threat Level: Known bad

The file 77c6d4944106ec80bb717043741b57da.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)

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

2025-02-26 08:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-26 08:58

Reported

2025-02-26 09:00

Platform

win7-20240903-en

Max time kernel

141s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.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\77c6d4944106ec80bb717043741b57da.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\bhvebcq\crhqgmi.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\bhvebcq\crhqgmi.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\bhvebcq\crhqgmi.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\bhvebcq\crhqgmi.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine C:\ProgramData\bhvebcq\crhqgmi.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
N/A N/A C:\ProgramData\bhvebcq\crhqgmi.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\77c6d4944106ec80bb717043741b57da.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\77c6d4944106ec80bb717043741b57da.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\bhvebcq\crhqgmi.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
N/A N/A C:\ProgramData\bhvebcq\crhqgmi.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1992 wrote to memory of 2588 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bhvebcq\crhqgmi.exe
PID 1992 wrote to memory of 2588 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bhvebcq\crhqgmi.exe
PID 1992 wrote to memory of 2588 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bhvebcq\crhqgmi.exe
PID 1992 wrote to memory of 2588 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bhvebcq\crhqgmi.exe

Processes

C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe

"C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {EF46BE36-5E41-4394-9866-900FBC6B77E0} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]

C:\ProgramData\bhvebcq\crhqgmi.exe

C:\ProgramData\bhvebcq\crhqgmi.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 93.186.202.3:5110 towerbingobongoboom.com tcp
US 172.217.14.78:80 172.217.14.78 tcp

Files

memory/1548-0-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-1-0x00000000779B0000-0x00000000779B2000-memory.dmp

memory/1548-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/1548-4-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-6-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-7-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-8-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-9-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-10-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-11-0x0000000000400000-0x0000000000846000-memory.dmp

C:\ProgramData\bhvebcq\crhqgmi.exe

MD5 77c6d4944106ec80bb717043741b57da
SHA1 aa1550acb66847744e99ee1181d8a7c9035f1339
SHA256 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80
SHA512 b2d7b47a95dafb732d65b7af2131ceb0b60c950c29697f4c07ff21381599558990fa03a9b8fc7dfe1d96787f6adce90b4b916c71cf2f4f32c4b070aae7fcd16a

memory/1548-14-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-15-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-16-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-18-0x0000000000400000-0x0000000000846000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 abbbca39ac1387c669ccea7126f30896
SHA1 9b9798c82f0542294bcb6aa74e12c85e89a8b2ab
SHA256 1d5cc0dae9fb5286e1a6aebd1e1ded9e995a6e4dd59cad314939175493867ba8
SHA512 a73aca90a7cd94bfab58288c9d6740e20759b8bf0f0179b2e216ec9b590935adb0fb70aad53d7e359121d3c5c287c75b15f5b07baac13882e9767ee120370999

memory/2588-19-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-20-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-21-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-22-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-23-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-24-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1548-25-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-26-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-27-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-28-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-29-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-30-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-31-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-32-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-33-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-34-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2588-35-0x0000000000400000-0x0000000000846000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-26 08:58

Reported

2025-02-26 09:00

Platform

win10v2004-20250217-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.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\77c6d4944106ec80bb717043741b57da.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\lovqf\dlhi.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\77c6d4944106ec80bb717043741b57da.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\lovqf\dlhi.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\lovqf\dlhi.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\lovqf\dlhi.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\Software\Wine C:\ProgramData\lovqf\dlhi.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A
N/A N/A C:\ProgramData\lovqf\dlhi.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\77c6d4944106ec80bb717043741b57da.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\lovqf\dlhi.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe

"C:\Users\Admin\AppData\Local\Temp\77c6d4944106ec80bb717043741b57da.exe"

C:\ProgramData\lovqf\dlhi.exe

C:\ProgramData\lovqf\dlhi.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 towerbingobongoboom.com udp
DE 93.186.202.3:4000 towerbingobongoboom.com tcp
DE 93.186.202.3:5111 towerbingobongoboom.com tcp
US 172.217.14.78:80 172.217.14.78 tcp
US 8.8.8.8:53 udp

Files

memory/3768-0-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-1-0x0000000077464000-0x0000000077466000-memory.dmp

memory/3768-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/3768-3-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-6-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-7-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-8-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-9-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-10-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-11-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-12-0x0000000000400000-0x0000000000846000-memory.dmp

C:\ProgramData\lovqf\dlhi.exe

MD5 77c6d4944106ec80bb717043741b57da
SHA1 aa1550acb66847744e99ee1181d8a7c9035f1339
SHA256 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80
SHA512 b2d7b47a95dafb732d65b7af2131ceb0b60c950c29697f4c07ff21381599558990fa03a9b8fc7dfe1d96787f6adce90b4b916c71cf2f4f32c4b070aae7fcd16a

memory/3504-15-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-16-0x0000000000400000-0x0000000000846000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 31bc2f34fc82c98cbc0f32b12b9bedfc
SHA1 234c654ee54cd5000dfb2c2f492c1f2e4ce3d667
SHA256 ae703d0ce8596b2a5c337e71dd7d43971db7c28228d8e3101c1201df3f72805f
SHA512 8fcbfe8ac5c4afe0b2f0101c1e26d68629ab804b79ff056b071cf476a2f936cfa1535b584c9b529cdff9b66388a8341bbac69449cb07a493c601e9cc669a955c

memory/3504-18-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-19-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-20-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-21-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3768-22-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-24-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-25-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-26-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-27-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-28-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-29-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-30-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-31-0x0000000000400000-0x0000000000846000-memory.dmp

memory/3504-32-0x0000000000400000-0x0000000000846000-memory.dmp