Malware Analysis Report

2024-10-16 07:00

Sample ID 240609-rv4s3abe6x
Target valorant installer.exe
SHA256 cf29b4fe81d71aa079d0098932f430aa2c880f8c44bd3a136b3d8e37eea56cf8
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

cf29b4fe81d71aa079d0098932f430aa2c880f8c44bd3a136b3d8e37eea56cf8

Threat Level: Likely malicious

The file valorant installer.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

Drops file in Windows directory

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-09 14:31

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

2024-06-09 14:31

Reported

2024-06-09 14:32

Platform

win10-20240404-en

Max time kernel

51s

Max time network

17s

Command Line

winlogon.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\valorant installer.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\valorant installer.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\valorant installer.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

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\valorant installer.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\rescache\_merged\4183903823\2290032291.pri C:\Windows\system32\taskmgr.exe N/A
File created C:\Windows\rescache\_merged\1601268389\715946058.pri C:\Windows\system32\taskmgr.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_QEMU&Prod_HARDDISK\4&215468a5&0&000000 C:\Windows\system32\taskmgr.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_QEMU&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A C:\Windows\system32\taskmgr.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_QEMU&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName C:\Windows\system32\taskmgr.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\valorant installer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\valorant installer.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A
N/A N/A C:\Windows\system32\winlogon.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\valorant installer.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\system32\taskmgr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1972 wrote to memory of 548 N/A C:\Users\Admin\AppData\Local\Temp\valorant installer.exe C:\Windows\system32\winlogon.exe

Processes

C:\Windows\system32\winlogon.exe

winlogon.exe

C:\Users\Admin\AppData\Local\Temp\valorant installer.exe

"C:\Users\Admin\AppData\Local\Temp\valorant installer.exe"

C:\Windows\system32\taskmgr.exe

"C:\Windows\system32\taskmgr.exe" /4

Network

Country Destination Domain Proto
DE 141.147.4.137:8873 tcp
US 8.8.8.8:53 137.4.147.141.in-addr.arpa udp

Files

memory/1972-0-0x0000000140000000-0x0000000141418000-memory.dmp

memory/1972-1-0x00000000004E0000-0x00000000004EB000-memory.dmp

memory/1972-4-0x00000000004F0000-0x00000000004F9000-memory.dmp

memory/1972-6-0x00000000004E0000-0x00000000004EB000-memory.dmp

memory/548-5-0x00000284CED50000-0x00000284CED52000-memory.dmp

memory/1972-8-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1972-7-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1972-9-0x00007FFAA3A88000-0x00007FFAA3A8A000-memory.dmp

memory/1972-10-0x0000000140000000-0x0000000141418000-memory.dmp

memory/1972-11-0x0000000140000000-0x0000000141418000-memory.dmp

memory/1972-12-0x0000000140000000-0x0000000141418000-memory.dmp

memory/1972-17-0x0000000000500000-0x0000000000506000-memory.dmp

memory/1972-16-0x0000000140000000-0x0000000141418000-memory.dmp