Malware Analysis Report

2025-04-03 09:37

Sample ID 250227-ahke8ayn15
Target 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80
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 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80 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

2025-02-27 00:12

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-27 00:12

Reported

2025-02-27 00:15

Platform

win7-20250207-en

Max time kernel

142s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.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\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\ProgramData\atxvixe\cjsfqgj.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\atxvixe\cjsfqgj.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\atxvixe\cjsfqgj.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\atxvixe\cjsfqgj.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Wine C:\ProgramData\atxvixe\cjsfqgj.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
N/A N/A C:\ProgramData\atxvixe\cjsfqgj.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\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.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\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\atxvixe\cjsfqgj.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
N/A N/A C:\ProgramData\atxvixe\cjsfqgj.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1708 wrote to memory of 2076 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\atxvixe\cjsfqgj.exe
PID 1708 wrote to memory of 2076 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\atxvixe\cjsfqgj.exe
PID 1708 wrote to memory of 2076 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\atxvixe\cjsfqgj.exe
PID 1708 wrote to memory of 2076 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\atxvixe\cjsfqgj.exe

Processes

C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe

"C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {8020590F-32CD-4630-BCA9-08B709F48AAC} S-1-5-21-677481364-2238709445-1347953534-1000:JXXXDSWS\Admin:Interactive:[1]

C:\ProgramData\atxvixe\cjsfqgj.exe

C:\ProgramData\atxvixe\cjsfqgj.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 93.186.202.3:5111 towerbingobongoboom.com tcp

Files

memory/1768-0-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-1-0x0000000077A10000-0x0000000077A12000-memory.dmp

memory/1768-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/1768-4-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-6-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-7-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-8-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-9-0x0000000000400000-0x0000000000846000-memory.dmp

C:\ProgramData\atxvixe\cjsfqgj.exe

MD5 77c6d4944106ec80bb717043741b57da
SHA1 aa1550acb66847744e99ee1181d8a7c9035f1339
SHA256 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80
SHA512 b2d7b47a95dafb732d65b7af2131ceb0b60c950c29697f4c07ff21381599558990fa03a9b8fc7dfe1d96787f6adce90b4b916c71cf2f4f32c4b070aae7fcd16a

memory/2076-12-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-13-0x0000000000400000-0x0000000000846000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 79713f7c7c6672cc2d6dae6493357471
SHA1 5e495f066901f09d652a14a270b0bfbdbdd7bcdb
SHA256 ea38b7e64ef4e49f868b341145afa674df8da21eb04c03a8879575a86baa8c65
SHA512 57e1f2912596f0ad9713916be0c774852b2d3903b47c33051453ca7d24a5a808479300bfe1d3423bb86f1f5b7a792f58105107e9b98462793de54e9f0d7b67d2

memory/2076-15-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-16-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-17-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-18-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-19-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-21-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-22-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-23-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-24-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-25-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-26-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-27-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1768-29-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-30-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-31-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-33-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-32-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-34-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-35-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-36-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-37-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-38-0x0000000000400000-0x0000000000846000-memory.dmp

memory/2076-39-0x0000000000400000-0x0000000000846000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-27 00:12

Reported

2025-02-27 00:15

Platform

win10v2004-20250217-en

Max time kernel

144s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.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:\ProgramData\jtim\wsqpuds.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\ProgramData\jtim\wsqpuds.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\ProgramData\jtim\wsqpuds.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\jtim\wsqpuds.exe N/A

Identifies Wine through registry keys

defense_evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Wine C:\ProgramData\jtim\wsqpuds.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
N/A N/A C:\ProgramData\jtim\wsqpuds.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\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.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\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\jtim\wsqpuds.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe

"C:\Users\Admin\AppData\Local\Temp\686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80.exe"

C:\ProgramData\jtim\wsqpuds.exe

C:\ProgramData\jtim\wsqpuds.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 towerbingobongoboom.com udp
DE 93.186.202.3:4000 towerbingobongoboom.com tcp
DE 93.186.202.3:5112 towerbingobongoboom.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 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

Files

memory/368-0-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-1-0x0000000077CB4000-0x0000000077CB6000-memory.dmp

memory/368-2-0x0000000000401000-0x0000000000403000-memory.dmp

memory/368-3-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-6-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-7-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-8-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-9-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-10-0x0000000000400000-0x0000000000846000-memory.dmp

C:\ProgramData\jtim\wsqpuds.exe

MD5 77c6d4944106ec80bb717043741b57da
SHA1 aa1550acb66847744e99ee1181d8a7c9035f1339
SHA256 686990b05fbd39d1d4e0d4af60242a5b69c1dbfb218214a20bb4c67bde5c6f80
SHA512 b2d7b47a95dafb732d65b7af2131ceb0b60c950c29697f4c07ff21381599558990fa03a9b8fc7dfe1d96787f6adce90b4b916c71cf2f4f32c4b070aae7fcd16a

memory/1912-13-0x0000000000400000-0x0000000000846000-memory.dmp

C:\Windows\Tasks\Test Task17.job

MD5 357410e224a7baf116e0c743911072ac
SHA1 bd076651ed77622d92467e1015064264ba465fcf
SHA256 9c2816bb59a85a3282084350734b491dc4e1f0ddea880112e48b6e71283c198b
SHA512 1dd431c254737d27855da5916025e79b3ff6ba1bec610b0e2e501bddc7b830d04429487ae1c11bda6845a4bde2c8c3fcb4b8b9760adcb79e37aabe122ecfd6b8

memory/1912-15-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-16-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-17-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-18-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-19-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-20-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-21-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-22-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-23-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-24-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-25-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-26-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-27-0x0000000000400000-0x0000000000846000-memory.dmp

memory/368-29-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-30-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-31-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-32-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-33-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-34-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-35-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-36-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-37-0x0000000000400000-0x0000000000846000-memory.dmp

memory/1912-38-0x0000000000400000-0x0000000000846000-memory.dmp