systembc | 3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945

General

Target

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe
Size

684.8MB
MD5

cffbeaff6728b94b1157790a0da8c0e0
SHA1

f739e01d798ee1f1c8802daf661fe22a2dc6cb85
SHA256

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945
SHA512

afdcc11c9fff4cca1d14d326d4728b3032617b62c2b9ad788b2e78383831cc0240ce0bf428b43e17ef0cb222ccacc99f58ab8b1e9c77804bcaf9bc0033375b76
SSDEEP

98304:G9J/BDT4RZr3mc9UUxFKzxx+SjEnodrlW3hvIroVj0Rdfay6cysWtrW4L:e/9Y3n9UiFe+SWodrlW3HVURp7Wtas

Score

10^/10

systembc evasion persistence themida trojan

Malware Config

Extracted

Family

systembc

C2

178.20.44.196:4127

192.168.1.149:4127

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2776-123-0x0000000001370000-0x0000000001E9C000-memory.dmp	themida
behavioral2/memory/2776-124-0x0000000001370000-0x0000000001E9C000-memory.dmp	themida
behavioral2/memory/2776-164-0x0000000001370000-0x0000000001E9C000-memory.dmp	themida

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\10A388C770904F49A3DDF65BDF6A1F1D = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe\""	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

pid process

2776 3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	pid	process	target process
PID 2776 set thread context of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

pid	process
2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe
2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe
2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe
2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description pid process

Token: SeDebugPrivilege 2776 3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	pid	process
Token: SeDebugPrivilege	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe

description	pid	process	target process
PID 2776 wrote to memory of 4736	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 4736	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 4736	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 4752	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 4752	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 4752	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe
PID 2776 wrote to memory of 3772	2776	3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe
"C:\Users\Admin\AppData\Local\Temp\3a48bb3fcdd6733462d837d755c7f09f90399d57364bae905f130009112a8945.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2776

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
PID:4736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
PID:4752

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
PID:3772

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2776-120-0x0000000001370000-0x0000000001E9C000-memory.dmp

Filesize
11.2MB

Download
memory/2776-121-0x0000000001370000-0x0000000001E9C000-memory.dmp

Filesize
11.2MB

Download
memory/2776-122-0x00007FFCD4B20000-0x00007FFCD4CFB000-memory.dmp

Filesize
1.9MB

Download
memory/2776-123-0x0000000001370000-0x0000000001E9C000-memory.dmp

Filesize
11.2MB

Download
memory/2776-124-0x0000000001370000-0x0000000001E9C000-memory.dmp

Filesize
11.2MB

Download
memory/2776-125-0x0000020CE53D0000-0x0000020CE5416000-memory.dmp

Filesize
280KB

Download
memory/2776-165-0x00007FFCD4B20000-0x00007FFCD4CFB000-memory.dmp

Filesize
1.9MB

Download
memory/2776-164-0x0000000001370000-0x0000000001E9C000-memory.dmp

Filesize
11.2MB

Download
memory/3772-143-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-147-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-130-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-131-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-132-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-134-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-135-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-136-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-137-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-138-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-139-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-141-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-140-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-142-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-128-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-144-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-145-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-146-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-148-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-129-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-149-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-150-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-151-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-153-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-154-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-155-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-156-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-157-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-152-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-158-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-159-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-160-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-161-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3772-162-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-163-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download
memory/3772-127-0x0000000000401000-mapping.dmp

Download
memory/3772-126-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3772-166-0x0000000077660000-0x00000000777EE000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads