Malware Analysis Report

2025-04-03 09:26

Sample ID 250303-c3zfzstxhx
Target 833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe
SHA256 833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971
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

833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971

Threat Level: Known bad

The file 833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.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

2025-03-03 02:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-03 02:36

Reported

2025-03-03 02:39

Platform

win7-20241010-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\oowddas\ovfur.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\oowddas\ovfur.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\oowddas\ovfur.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\oowddas\ovfur.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine C:\ProgramData\oowddas\ovfur.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
N/A N/A C:\ProgramData\oowddas\ovfur.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\oowddas\ovfur.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
N/A N/A C:\ProgramData\oowddas\ovfur.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2896 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\oowddas\ovfur.exe
PID 2896 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\oowddas\ovfur.exe
PID 2896 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\oowddas\ovfur.exe
PID 2896 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\oowddas\ovfur.exe

Processes

C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe

"C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {EFA8A8DE-28BB-4E49-93BD-A8317C4214B8} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]

C:\ProgramData\oowddas\ovfur.exe

C:\ProgramData\oowddas\ovfur.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 213.209.150.137:4784 towerbingobongoboom.com tcp

Files

memory/2336-0-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-1-0x0000000077960000-0x0000000077962000-memory.dmp

memory/2336-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/2336-4-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-6-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-7-0x0000000000400000-0x0000000000856000-memory.dmp

C:\ProgramData\oowddas\ovfur.exe

MD5 9218e5cad03c752f237ed87a9e52def4
SHA1 0ccddab0d87776d78c613c6e7a6f3bce93ffc3d3
SHA256 833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971
SHA512 4ca94c23bf82bee5ff5a7f7e318e99c084f7403cdc2e23276087f55620f9e9f988a7a6816fedcd2f853a21fe645c3cc89f7b2f6f05f792b549fd698fd14f5cb3

memory/2336-10-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-11-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-14-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-13-0x0000000000400000-0x0000000000856000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 fc33a307756e8ffd922f45807cffc8d4
SHA1 4be90efd9e7a17d546dff89671e71edeb27d0f46
SHA256 b610084b83485eecea4fdc8fd570b40b621121c62f843a1618efe556981b3844
SHA512 2ac0c6b6f5b456039eba034ff63da2ce1397711e7cd69f217555a8378d4fc89b75f4888bb4d942edd39c764dbb7fb012813727b229f85d530c78261bb44cac50

memory/2972-16-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-17-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-18-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-19-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-20-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-21-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-22-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-23-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-24-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-25-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-26-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-27-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2336-28-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-30-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-31-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-32-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-33-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-34-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-35-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-36-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-37-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-38-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2972-39-0x0000000000400000-0x0000000000856000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-03 02:36

Reported

2025-03-03 02:39

Platform

win10v2004-20250217-en

Max time kernel

144s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\wldhfi\ggnv.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\wldhfi\ggnv.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\wldhfi\ggnv.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\wldhfi\ggnv.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Wine C:\ProgramData\wldhfi\ggnv.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
N/A N/A C:\ProgramData\wldhfi\ggnv.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.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\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\wldhfi\ggnv.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe

"C:\Users\Admin\AppData\Local\Temp\833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971.exe"

C:\ProgramData\wldhfi\ggnv.exe

C:\ProgramData\wldhfi\ggnv.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 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
US 213.209.150.137:4000 towerbingobongoboom.com tcp
US 213.209.150.137:4458 towerbingobongoboom.com tcp

Files

memory/2340-0-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-1-0x0000000077E54000-0x0000000077E56000-memory.dmp

memory/2340-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/2340-3-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-6-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-7-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-8-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-9-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-10-0x0000000000400000-0x0000000000856000-memory.dmp

C:\ProgramData\wldhfi\ggnv.exe

MD5 9218e5cad03c752f237ed87a9e52def4
SHA1 0ccddab0d87776d78c613c6e7a6f3bce93ffc3d3
SHA256 833610e95cc965e70096620e0adaa8917963df9f9ec56e00af1ff331161a7971
SHA512 4ca94c23bf82bee5ff5a7f7e318e99c084f7403cdc2e23276087f55620f9e9f988a7a6816fedcd2f853a21fe645c3cc89f7b2f6f05f792b549fd698fd14f5cb3

memory/1980-13-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-14-0x0000000000400000-0x0000000000856000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 037334a788d018f186bfb21efc52c47b
SHA1 c1b066876c963fe2ba385ca000be52efbe844ecd
SHA256 26df6f6dedacdd256e62c9c82aac38b28ca244bccd031f13e8e83a1e4e3b8e93
SHA512 f94247eeae9201e02775462041faa528ccb860cdc988dd549c18ff465338b7161beb1b9c7917bad0df8a14f5a333167258f54beebb2f1738cac7087a686839dd

memory/1980-16-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-17-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-18-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-19-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-20-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-21-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-22-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-23-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-24-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-25-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-26-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-27-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-28-0x0000000000400000-0x0000000000856000-memory.dmp

memory/2340-30-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-31-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-32-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-33-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-34-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-35-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-36-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-37-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-38-0x0000000000400000-0x0000000000856000-memory.dmp

memory/1980-39-0x0000000000400000-0x0000000000856000-memory.dmp