Malware Analysis Report

2024-10-16 06:50

Sample ID 240616-c5cd8szerk
Target f3c5a2f7998dda93df0ffce490040183.bin
SHA256 fd39cdabeb5cab274ef1f36bf97bb0928caf1be60d9079ef49029fda268745e1
Tags
themida evasion trojan
score
9/10

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
9/10

SHA256

fd39cdabeb5cab274ef1f36bf97bb0928caf1be60d9079ef49029fda268745e1

Threat Level: Likely malicious

The file f3c5a2f7998dda93df0ffce490040183.bin was found to be: Likely malicious.

Malicious Activity Summary

themida evasion trojan

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

Themida packer

Checks BIOS information in registry

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-16 02:39

Signatures

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 02:39

Reported

2024-06-16 02:41

Platform

win7-20240221-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe"

Signatures

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

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe

"C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe"

Network

N/A

Files

memory/2752-1-0x00000000770C0000-0x00000000770C2000-memory.dmp

memory/2752-0-0x0000000140000000-0x0000000144BB8000-memory.dmp

memory/2752-2-0x0000000140000000-0x0000000144BB8000-memory.dmp

memory/2752-3-0x0000000140000000-0x0000000144BB8000-memory.dmp

memory/2752-4-0x0000000140000000-0x0000000144BB8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 02:39

Reported

2024-06-16 02:41

Platform

win10v2004-20240611-en

Max time kernel

91s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe"

Signatures

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

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe

"C:\Users\Admin\AppData\Local\Temp\8eb3a2b0c546da0b5c595cbbba207db7f990b3726075ea45f7decf57b863f5bb.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.107.105:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 105.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 142.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/3340-0-0x0000000140000000-0x0000000144BB8000-memory.dmp

memory/3340-2-0x00007FF839EF0000-0x00007FF839EF2000-memory.dmp

memory/3340-1-0x0000000140000000-0x0000000144BB8000-memory.dmp

memory/3340-3-0x0000000140000000-0x0000000144BB8000-memory.dmp

memory/3340-5-0x0000000140000000-0x0000000144BB8000-memory.dmp