Malware Analysis Report

2025-04-03 09:24

Sample ID 250305-axzhpatrw8
Target coredrive.exe
SHA256 a7c8390922ecfe4e4be4c9ffff567e91298a8bbf96dc96318305f45ec59f5221
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

a7c8390922ecfe4e4be4c9ffff567e91298a8bbf96dc96318305f45ec59f5221

Threat Level: Known bad

The file coredrive.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

Checks BIOS information in registry

Identifies Wine through registry keys

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-05 00:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-05 00:36

Reported

2025-03-05 00:38

Platform

win7-20240903-en

Max time kernel

147s

Max time network

149s

Command Line

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\bpit\unic.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\coredrive.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine C:\ProgramData\bpit\unic.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\coredrive.exe N/A
N/A N/A C:\ProgramData\bpit\unic.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2464 wrote to memory of 2924 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bpit\unic.exe
PID 2464 wrote to memory of 2924 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bpit\unic.exe
PID 2464 wrote to memory of 2924 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bpit\unic.exe
PID 2464 wrote to memory of 2924 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\bpit\unic.exe

Processes

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

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

C:\Windows\system32\taskeng.exe

taskeng.exe {7672AAAE-DBB7-4565-8B9F-5ECEE2F2581D} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]

C:\ProgramData\bpit\unic.exe

C:\ProgramData\bpit\unic.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 213.209.150.137:4645 towerbingobongoboom.com tcp

Files

memory/2556-0-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-1-0x0000000077110000-0x0000000077112000-memory.dmp

memory/2556-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/2556-4-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-6-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-7-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-8-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-9-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-10-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-11-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-12-0x0000000000400000-0x0000000000823000-memory.dmp

C:\ProgramData\bpit\unic.exe

MD5 c6a399eb155322a8cbf1390c118553cb
SHA1 c59b0aa34638e8991358520e29625bb7fb4e3b6b
SHA256 a7c8390922ecfe4e4be4c9ffff567e91298a8bbf96dc96318305f45ec59f5221
SHA512 6437b6ea8990130f8e69b113f6ec8310e8831a80a2cf7ef1d8d16b323729a89c4a00a8900030e77f5671a7a40971e519731ec22519d98d7af29577dcb5dfe44e

memory/2924-15-0x0000000000400000-0x0000000000823000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 31e587f578317e6817571197119cd22a
SHA1 b71bdcecb9bf97869db76f79c9f09f084de86105
SHA256 37b2e47ce05ad0bc4768dc0a75165c17a906a6933ec7db9ba72be93cd6dc1860
SHA512 2fa407014b3ac23049d7bc5dd05b1145025b4e17dd35ec06d5b6aee37e4f926deb2ae1b5d937c6ac2499eabeea8c7115e17c8d0a868702586033916cd58963e6

memory/2924-18-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-16-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-19-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-20-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-21-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-22-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-23-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-24-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2556-27-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-28-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-29-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-30-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-31-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-32-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-33-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-34-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-35-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-36-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2924-37-0x0000000000400000-0x0000000000823000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-05 00:36

Reported

2025-03-05 00:38

Platform

win10v2004-20250217-en

Max time kernel

148s

Max time network

151s

Command Line

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\shvdu\ldvrbjv.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\coredrive.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Wine C:\ProgramData\shvdu\ldvrbjv.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\coredrive.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\coredrive.exe N/A
N/A N/A C:\ProgramData\shvdu\ldvrbjv.exe N/A
N/A N/A C:\ProgramData\shvdu\ldvrbjv.exe N/A

Processes

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

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

C:\ProgramData\shvdu\ldvrbjv.exe

C:\ProgramData\shvdu\ldvrbjv.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 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 towerbingobongoboom.com udp
US 213.209.150.137:4000 towerbingobongoboom.com tcp
US 213.209.150.137:4647 towerbingobongoboom.com tcp

Files

memory/4648-0-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-1-0x0000000077A74000-0x0000000077A76000-memory.dmp

memory/4648-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/4648-3-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-6-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-7-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-8-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-9-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-10-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-11-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-12-0x0000000000400000-0x0000000000823000-memory.dmp

C:\ProgramData\shvdu\ldvrbjv.exe

MD5 c6a399eb155322a8cbf1390c118553cb
SHA1 c59b0aa34638e8991358520e29625bb7fb4e3b6b
SHA256 a7c8390922ecfe4e4be4c9ffff567e91298a8bbf96dc96318305f45ec59f5221
SHA512 6437b6ea8990130f8e69b113f6ec8310e8831a80a2cf7ef1d8d16b323729a89c4a00a8900030e77f5671a7a40971e519731ec22519d98d7af29577dcb5dfe44e

memory/2432-15-0x0000000000400000-0x0000000000823000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 82b0506ee0b42bc056ba56cc6cc7ffcb
SHA1 9b46bd036ec6cb52d95f8f09098e76901c94636a
SHA256 dae88afefab97a54cdf2a8248ffe51c8151ef1cd9f1e477fd93cd871daf7c41c
SHA512 89ff359476904cf39995009b56d349c3ee4d37002966698759436d0db049264dbefbf2ec7a95fcc728699f3e531901b526e416822016120bc8c569b5b09d57f9

memory/2432-17-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-18-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-19-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-20-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-21-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-22-0x0000000000400000-0x0000000000823000-memory.dmp

memory/4648-24-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-25-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-26-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-27-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-28-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-29-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-30-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-31-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-32-0x0000000000400000-0x0000000000823000-memory.dmp

memory/2432-33-0x0000000000400000-0x0000000000823000-memory.dmp