Malware Analysis Report

2025-04-03 09:13

Sample ID 250224-y1xp9stjv2
Target a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe
SHA256 a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30c
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30c

Threat Level: Known bad

The file a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.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

Identifies Wine through registry keys

Executes dropped EXE

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

2025-02-24 20:15

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-24 20:15

Reported

2025-02-24 20:17

Platform

win10v2004-20250217-en

Max time kernel

115s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\dribqqa\kpvfpvv.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\dribqqa\kpvfpvv.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\dribqqa\kpvfpvv.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\dribqqa\kpvfpvv.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:\ProgramData\dribqqa\kpvfpvv.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
N/A N/A C:\ProgramData\dribqqa\kpvfpvv.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\dribqqa\kpvfpvv.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe

"C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe"

C:\ProgramData\dribqqa\kpvfpvv.exe

C:\ProgramData\dribqqa\kpvfpvv.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 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 wodresomdaymomentum.org udp
US 99.83.175.80:4000 wodresomdaymomentum.org tcp

Files

memory/4520-0-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-1-0x0000000077844000-0x0000000077846000-memory.dmp

memory/4520-2-0x0000000000401000-0x0000000000406000-memory.dmp

memory/4520-3-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-6-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-7-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-8-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-9-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-10-0x0000000000400000-0x0000000000870000-memory.dmp

C:\ProgramData\dribqqa\kpvfpvv.exe

MD5 76c16b4b05e214b0eebf900087982df0
SHA1 f9c3cc1527b4c7f1ae451d40c9a792e73bf8c567
SHA256 a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30c
SHA512 df9d4bbfdf3605c0eae0ee6f16329488d6df3796454d1f7427e9295745dcbe5560ee51b80ba7770b908c1693599c7806d8805a20588d4b41b775f811ba98a9ae

memory/4352-13-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-14-0x0000000000400000-0x0000000000870000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 6368ae0924aab7a1d1aa7b2d7df1b5a1
SHA1 7aad1f11a99cf8ea858e2667d8da534c1d61411f
SHA256 68b7e272de937a02035fa93ebc205eb6572d307f8b1c2708d2ac67607724145e
SHA512 e777a5394dbef67b9f1aeed5448863d747647b49c7082eb54ab3317671fd78856bd7948ae893fd6e5dbf220a9860e3ed4043ab1f81f265ea025145b1850439cf

memory/4520-16-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-17-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-18-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-19-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-20-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-21-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-22-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-23-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-24-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-25-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-26-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-27-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4520-28-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-29-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-30-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-31-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-32-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-33-0x0000000000400000-0x0000000000870000-memory.dmp

memory/4352-34-0x0000000000400000-0x0000000000870000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-24 20:15

Reported

2025-02-24 20:17

Platform

win7-20240729-en

Max time kernel

115s

Max time network

84s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\djip\fxnnc.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\djip\fxnnc.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\djip\fxnnc.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\djip\fxnnc.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine C:\ProgramData\djip\fxnnc.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
N/A N/A C:\ProgramData\djip\fxnnc.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.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\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\djip\fxnnc.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe N/A
N/A N/A C:\ProgramData\djip\fxnnc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2860 wrote to memory of 2784 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\djip\fxnnc.exe
PID 2860 wrote to memory of 2784 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\djip\fxnnc.exe
PID 2860 wrote to memory of 2784 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\djip\fxnnc.exe
PID 2860 wrote to memory of 2784 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\djip\fxnnc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe

"C:\Users\Admin\AppData\Local\Temp\a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30cN.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {99F9906E-7D70-470F-8D9B-2489376AE6EC} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]

C:\ProgramData\djip\fxnnc.exe

C:\ProgramData\djip\fxnnc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 wodresomdaymomentum.org udp
US 99.83.175.80:4000 wodresomdaymomentum.org tcp

Files

memory/2016-0-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-1-0x0000000077D20000-0x0000000077D22000-memory.dmp

memory/2016-2-0x0000000000401000-0x0000000000406000-memory.dmp

memory/2016-4-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-6-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-7-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-8-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-9-0x0000000000400000-0x0000000000870000-memory.dmp

C:\ProgramData\djip\fxnnc.exe

MD5 76c16b4b05e214b0eebf900087982df0
SHA1 f9c3cc1527b4c7f1ae451d40c9a792e73bf8c567
SHA256 a6bcfa6ec5ba841bc1c0a78691ff55c22f57f842481a3c2a1007009682c6d30c
SHA512 df9d4bbfdf3605c0eae0ee6f16329488d6df3796454d1f7427e9295745dcbe5560ee51b80ba7770b908c1693599c7806d8805a20588d4b41b775f811ba98a9ae

memory/2784-12-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-13-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-15-0x0000000000400000-0x0000000000870000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 ddacb41cf41511d1621552763a391830
SHA1 b73ee29ece862e0940e352d9d74125dbab98959b
SHA256 53a1eb0dcfe64fa718da4ad356f14cca6cec7cbc9e8d7ac2e6efdf479adc271c
SHA512 b96145d464b5f8eeadbac3375d9580631f39797678b898bea0e89ba9c30b12cd6763fafb08a7a7b5689e876e42d86a82a789da6f8ced5c81959cdb466c036224

memory/2016-16-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-17-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-18-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-19-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-20-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-21-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-22-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-23-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-24-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-25-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-26-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-27-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2016-29-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-30-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-31-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-32-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-33-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-34-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2784-35-0x0000000000400000-0x0000000000870000-memory.dmp