Malware Analysis Report

2025-08-05 17:36

Sample ID 241117-ryw8dswpdn
Target 90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe
SHA256 90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49
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

90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49

Threat Level: Likely malicious

The file 90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe 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

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 14:36

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

2024-11-17 14:36

Reported

2024-11-17 14:39

Platform

win7-20241010-en

Max time kernel

140s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.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\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.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\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.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

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\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe

"C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c cls

Network

N/A

Files

memory/2676-0-0x000000013FAB0000-0x0000000140369000-memory.dmp

memory/2676-1-0x0000000077120000-0x0000000077122000-memory.dmp

memory/2676-3-0x000000013FAB0000-0x0000000140369000-memory.dmp

memory/2676-4-0x000000013FAB0000-0x0000000140369000-memory.dmp

memory/2676-2-0x000000013FAB0000-0x0000000140369000-memory.dmp

memory/2676-5-0x000000013FAB0000-0x0000000140369000-memory.dmp

memory/2676-6-0x000000013FAB0000-0x0000000140369000-memory.dmp

memory/2676-18-0x000000013FAB0000-0x0000000140369000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 14:36

Reported

2024-11-17 14:39

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.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\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.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\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.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

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\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe

"C:\Users\Admin\AppData\Local\Temp\90e245ba018674f5961d7db018bcba816c8c1265807f0a33fb3bb9ebf659fb49N.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c cls

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/4384-0-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp

memory/4384-2-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp

memory/4384-1-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp

memory/4384-3-0x00007FFC14CB0000-0x00007FFC14CB2000-memory.dmp

memory/4384-4-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp

memory/4384-5-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp

memory/4384-6-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp

memory/4384-11-0x00007FF6E16C0000-0x00007FF6E1F79000-memory.dmp