systembc | b3c506f89220c76008795fdb56d670380ab58d952065c891f75a8db54b84ef8e

General

Target

tmp.exe
Size

9.1MB
MD5

f57290a3fb2a9714e880f92a4ee1f22a
SHA1

25249086768b072a7f0649ab9fb60fa4e3eb95b6
SHA256

b3c506f89220c76008795fdb56d670380ab58d952065c891f75a8db54b84ef8e
SHA512

320bec079deeb6b91b9ba6ac868ed4af235ae863df6e3bc22b7aeba24b90ec1f78aa0c07d4497bc599448bd90f56f8c627c8c064419ab3f2293222c04cf1a9a8
SSDEEP

196608:puiEfVsQ+P5VBqvpxTle/y89BcDmwIuAOie1M:pdrnUvTm9BcDm/T

Score

10^/10

systembc evasion themida trojan

Malware Config

Extracted

Family

systembc

C2

89.22.225.242:4193

195.2.93.22:4193

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 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	tmp.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	tmp.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\VideoBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	tmp.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4744-132-0x0000000000400000-0x0000000000D1F000-memory.dmp	themida
behavioral2/memory/4744-135-0x0000000000400000-0x0000000000D1F000-memory.dmp	themida
behavioral2/memory/4760-143-0x0000000000400000-0x0000000000D1F000-memory.dmp	themida
behavioral2/memory/4760-147-0x0000000000400000-0x0000000000D1F000-memory.dmp	themida
behavioral2/memory/4744-155-0x0000000000400000-0x0000000000D1F000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	tmp.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	tmp.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\wow64.job	tmp.exe
File opened for modification	C:\Windows\Tasks\wow64.job	tmp.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4744	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe
4760	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4744

C:\Users\Admin\AppData\Local\Temp\tmp.exe
C:\Users\Admin\AppData\Local\Temp\tmp.exe start
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:4760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4744-146-0x000000000DF30000-0x000000000DFB0000-memory.dmp

Filesize
512KB

Download
memory/4744-133-0x00000000031C6000-0x0000000003A6D000-memory.dmp

Filesize
8.7MB

Download
memory/4744-134-0x0000000002FCF000-0x000000000313C000-memory.dmp

Filesize
1.4MB

Download
memory/4744-135-0x0000000000400000-0x0000000000D1F000-memory.dmp

Filesize
9.1MB

Download
memory/4744-136-0x00000000031C6000-0x0000000003A6D000-memory.dmp

Filesize
8.7MB

Download
memory/4744-137-0x0000000002FCF000-0x000000000313C000-memory.dmp

Filesize
1.4MB

Download
memory/4744-138-0x000000000DF30000-0x000000000DFB0000-memory.dmp

Filesize
512KB

Download
memory/4744-139-0x000000000DF30000-0x000000000DFB0000-memory.dmp

Filesize
512KB

Download
memory/4744-140-0x00000000031A0000-0x00000000031A7000-memory.dmp

Filesize
28KB

Download
memory/4744-156-0x0000000002FCF000-0x000000000313C000-memory.dmp

Filesize
1.4MB

Download
memory/4744-132-0x0000000000400000-0x0000000000D1F000-memory.dmp

Filesize
9.1MB

Download
memory/4744-155-0x0000000000400000-0x0000000000D1F000-memory.dmp

Filesize
9.1MB

Download
memory/4760-144-0x0000000001D96000-0x000000000263D000-memory.dmp

Filesize
8.7MB

Download
memory/4760-147-0x0000000000400000-0x0000000000D1F000-memory.dmp

Filesize
9.1MB

Download
memory/4760-148-0x0000000001BAC000-0x0000000001D19000-memory.dmp

Filesize
1.4MB

Download
memory/4760-149-0x000000000A590000-0x000000000A610000-memory.dmp

Filesize
512KB

Download
memory/4760-150-0x000000000A590000-0x000000000A610000-memory.dmp

Filesize
512KB

Download
memory/4760-151-0x0000000001820000-0x0000000001827000-memory.dmp

Filesize
28KB

Download
memory/4760-154-0x000000000A590000-0x000000000A610000-memory.dmp

Filesize
512KB

Download
memory/4760-145-0x0000000001BAC000-0x0000000001D19000-memory.dmp

Filesize
1.4MB

Download
memory/4760-143-0x0000000000400000-0x0000000000D1F000-memory.dmp

Filesize
9.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads