systembc | c13d59dc2e8ee1cbdb8016de0fb3b374f827406fa5d2d1aa4a2820170816d131

General

Target

cubrodriver.exe
Size

1.7MB
MD5

190272ebd2e82a80b242b1bdd442b859
SHA1

fceb12a205c28c30b2049c55924a9872a1a3eb71
SHA256

c13d59dc2e8ee1cbdb8016de0fb3b374f827406fa5d2d1aa4a2820170816d131
SHA512

f3b30d8ea2dd2c451a042b4ed7a9e98d2bcfbb86a88bec2d672a3e1ae6ab3932daf8987eef872e6adb11144f92b9954ac6f6ce67e24a2bc391d7b34ebef876ae
SSDEEP

49152:Kq8Z+aOhmX72hf7OqockKkGYR7SGmUNmzKZg:yAaEhhyJcjkdNmeZg

Score

10^/10

systembc defense_evasion discovery trojan

Malware Config

Extracted

Family

systembc

C2

towerbingobongoboom.com

62.60.226.86

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Systembc family
systembc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	cubrodriver.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	dpete.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cubrodriver.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cubrodriver.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	dpete.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	dpete.exe

Executes dropped EXE 1 IoCs

pid	Process
2436	dpete.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	cubrodriver.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	dpete.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2716	cubrodriver.exe
2436	dpete.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	cubrodriver.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dpete.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cubrodriver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2716	cubrodriver.exe
2436	dpete.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2436	1792	taskeng.exe	32
PID 1792 wrote to memory of 2436	1792	taskeng.exe	32
PID 1792 wrote to memory of 2436	1792	taskeng.exe	32
PID 1792 wrote to memory of 2436	1792	taskeng.exe	32

C:\Users\Admin\AppData\Local\Temp\cubrodriver.exe
"C:\Users\Admin\AppData\Local\Temp\cubrodriver.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- 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 behavior: EnumeratesProcesses
PID:2716

C:\Windows\system32\taskeng.exe
taskeng.exe {18B489AB-A6D7-446D-8369-254E57B24742} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1792
- C:\ProgramData\pnnppg\dpete.exe
  C:\ProgramData\pnnppg\dpete.exe
  2⤵
  - 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\pnnppg\dpete.exe

Filesize
1.7MB

MD5
190272ebd2e82a80b242b1bdd442b859

SHA1
fceb12a205c28c30b2049c55924a9872a1a3eb71

SHA256
c13d59dc2e8ee1cbdb8016de0fb3b374f827406fa5d2d1aa4a2820170816d131

SHA512
f3b30d8ea2dd2c451a042b4ed7a9e98d2bcfbb86a88bec2d672a3e1ae6ab3932daf8987eef872e6adb11144f92b9954ac6f6ce67e24a2bc391d7b34ebef876ae

Download Submit
C:\Windows\Tasks\Test Task17.job

Filesize
218B

MD5
90a8fd508bbb57d9ff7a41fc77f6eba5

SHA1
dda06c2c9e1f8929091b8a4a90cf4cfcd70b9111

SHA256
df8f0b1900a3ccb967c2d6bbe178b266550a851780d32037d441e37021b8823b

SHA512
a3ef8301632b1b01098adfdf039d843f89c37e55a331295fa749f8b30cf99fb06973215e654b1eb5e536bafa2f709592626cd86d20806fd047f305ff9e32e076

Download Submit
memory/2436-27-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-29-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-35-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-34-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-33-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-32-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-31-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-30-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-19-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-22-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-28-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-16-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-17-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-26-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-24-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-21-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2436-23-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-12-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-20-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-4-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-25-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-1-0x00000000779F0000-0x00000000779F2000-memory.dmp

Filesize
8KB

Download
memory/2716-0-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-2-0x0000000000401000-0x0000000000403000-memory.dmp

Filesize
8KB

Download
memory/2716-13-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-11-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-10-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-9-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-8-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-7-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2716-6-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads