systembc | bfe4b4df28361cf5ef899f834fefed90d282995621018ac8215c04ca2cfe571f

Analysis

max time kernel
144s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04/03/2025, 22:29

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General

Target

reloadrive.exe
Size

1.6MB
MD5

8c767708c9a9554c0afb504629e75ffd
SHA1

c65394806c0f77af880c7ff8a021bd4222ca3f11
SHA256

dcb373f73cc5e29881b6c97f753da1db91becee01b5eade03b0fd217d10b4e7d
SHA512

f9531159b45f92db319f351ebf4dadf9ba3c413e87da401a0af81d25a446084ed30dee670462292b989e1c9b0074a3c2ae76bb8a1d992e4407f72360303b4e16
SSDEEP

49152:R1aqCQ3KKia9icS8P80nPIIXQocVHmir6QmEGmNyRzs3Xn:R1aA37ia9iJ800QIXQocVHoEGV0

Score

10^/10

systembc defense_evasion discovery trojan

Malware Config

Extracted

Family

systembc

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__	reloadrive.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	acsivq.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	reloadrive.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	reloadrive.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	acsivq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	acsivq.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	acsivq.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	reloadrive.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	acsivq.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2188	reloadrive.exe
3000	acsivq.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	reloadrive.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	reloadrive.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acsivq.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2188	reloadrive.exe
3000	acsivq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 3000	2908	taskeng.exe	32
PID 2908 wrote to memory of 3000	2908	taskeng.exe	32
PID 2908 wrote to memory of 3000	2908	taskeng.exe	32
PID 2908 wrote to memory of 3000	2908	taskeng.exe	32

C:\Users\Admin\AppData\Local\Temp\reloadrive.exe
"C:\Users\Admin\AppData\Local\Temp\reloadrive.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:2188

C:\Windows\system32\taskeng.exe
taskeng.exe {73391206-73EE-4D16-A8ED-33AB1CE79806} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2908
- C:\ProgramData\smbeofd\acsivq.exe
  C:\ProgramData\smbeofd\acsivq.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:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\smbeofd\acsivq.exe

Filesize
1.6MB

MD5
8c767708c9a9554c0afb504629e75ffd

SHA1
c65394806c0f77af880c7ff8a021bd4222ca3f11

SHA256
dcb373f73cc5e29881b6c97f753da1db91becee01b5eade03b0fd217d10b4e7d

SHA512
f9531159b45f92db319f351ebf4dadf9ba3c413e87da401a0af81d25a446084ed30dee670462292b989e1c9b0074a3c2ae76bb8a1d992e4407f72360303b4e16

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

Filesize
222B

MD5
13c373ce58eaea8df9137dd2b363eceb

SHA1
fed7dd57e8d4928fce31ffd86bd221e1b619e3b9

SHA256
f7e8639d6caebc94a36346ec1a5ded49412d09d6ee42b712b0d3a6572d445762

SHA512
e2f2cb7c03457e7ecb07595fdb5ae1ac877061516db2c1921bd5e5eef5e269b1d75268654e7cb879c40ada54c527d3b30cab29c4888da4d2349b202099cd13c0

Download Submit
memory/2188-3-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-17-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-6-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-7-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-8-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-9-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-10-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-2-0x0000000000401000-0x0000000000403000-memory.dmp

Filesize
8KB

Download
memory/2188-24-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-22-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/2188-1-0x0000000077990000-0x0000000077992000-memory.dmp

Filesize
8KB

Download
memory/2188-0-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-19-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-27-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-16-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-20-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-21-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-14-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-23-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-13-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-26-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-18-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-28-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-29-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-30-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-31-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-32-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-33-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-34-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download
memory/3000-35-0x0000000000400000-0x0000000000823000-memory.dmp

Filesize
4.1MB

Download