Malware Analysis Report

2024-10-10 07:51

Sample ID 240615-w35sjszhka
Target f2dc4711-p4QNZK.exe
SHA256 bac62dc3209c471dbafe09c48e0274a4ecc7652fd19d93abd7a8bf08bea32756
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 Overview

score
9/10

SHA256

bac62dc3209c471dbafe09c48e0274a4ecc7652fd19d93abd7a8bf08bea32756

Threat Level: Likely malicious

The file f2dc4711-p4QNZK.exe was found to be: Likely malicious.

Malicious Activity Summary

themida evasion trojan

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

Checks BIOS information in registry

Themida packer

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-15 18:27

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

2024-06-15 18:27

Reported

2024-06-15 18:28

Platform

win10v2004-20240508-es

Max time kernel

16s

Max time network

20s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.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\f2dc4711-p4QNZK.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.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
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
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\f2dc4711-p4QNZK.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardManufacturer C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe

"C:\Users\Admin\AppData\Local\Temp\f2dc4711-p4QNZK.exe"

Network

Files

memory/1596-0-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-1-0x00007FFB81110000-0x00007FFB81112000-memory.dmp

memory/1596-2-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-3-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-4-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-6-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-5-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-7-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-8-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-9-0x00007FF725E30000-0x00007FF72756B000-memory.dmp

memory/1596-10-0x00007FFB81070000-0x00007FFB81265000-memory.dmp

memory/1596-11-0x00007FFB81070000-0x00007FFB81265000-memory.dmp

memory/1596-12-0x00007FFB81070000-0x00007FFB81265000-memory.dmp

memory/1596-15-0x00007FFB81070000-0x00007FFB81265000-memory.dmp

memory/1596-14-0x00007FF725E30000-0x00007FF72756B000-memory.dmp