Malware Analysis Report

2024-10-16 06:53

Sample ID 240616-za1jxazhjl
Target JITStarter.exe
SHA256 24ec014d446db69e549b233aff46015e8ee561fa66241f8075c3383a6c8f1ee6
Tags
themida discovery 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

24ec014d446db69e549b233aff46015e8ee561fa66241f8075c3383a6c8f1ee6

Threat Level: Likely malicious

The file JITStarter.exe was found to be: Likely malicious.

Malicious Activity Summary

themida discovery evasion trojan

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

Checks BIOS information in registry

Checks computer location settings

Themida packer

Checks whether UAC is enabled

Checks installed software on the system

Suspicious use of NtSetInformationThreadHideFromDebugger

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-16 20:31

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

2024-06-16 20:31

Reported

2024-06-16 20:32

Platform

win7-20240611-en

Max time kernel

29s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JITStarter.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\JITStarter.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\JITStarter.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\JITStarter.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
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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 installed software on the system

discovery

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\JITStarter.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\JITStarter.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1720 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 1720 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\WerFault.exe
PID 1720 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\WerFault.exe
PID 1720 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\WerFault.exe
PID 1720 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\JITStarter.exe

"C:\Users\Admin\AppData\Local\Temp\JITStarter.exe"

C:\Windows\SysWOW64\cmd.exe

/C vcredist86.exe /install /quiet /norestart

C:\Windows\SysWOW64\cmd.exe

/C vcredist64.exe /install /quiet /norestart

C:\Windows\SysWOW64\cmd.exe

/C NDP461-KB3102438-Web.exe /q /norestart

C:\Windows\SysWOW64\cmd.exe

/C dxwebsetup.exe /Q

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 296

Network

Country Destination Domain Proto
US 8.8.8.8:53 cache.ryos.best udp
US 8.8.8.8:53 cache.ryos.lol udp
N/A 127.0.0.1:49199 tcp
N/A 127.0.0.1:49201 tcp
US 8.8.8.8:53 electronfilehosting.xyz udp
N/A 127.0.0.1:49203 tcp
N/A 127.0.0.1:49205 tcp
N/A 127.0.0.1:49247 tcp
N/A 127.0.0.1:49287 tcp
N/A 127.0.0.1:49327 tcp
N/A 127.0.0.1:49369 tcp

Files

memory/1720-0-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-1-0x00000000774D0000-0x00000000774D2000-memory.dmp

memory/1720-5-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-7-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-6-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-4-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-3-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-2-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/2288-39-0x0000000000750000-0x0000000000751000-memory.dmp

memory/1720-44-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-160-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-159-0x0000000000280000-0x0000000000CF4000-memory.dmp

memory/1720-165-0x0000000000280000-0x0000000000CF4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 20:31

Reported

2024-06-16 20:34

Platform

win10v2004-20240611-en

Max time kernel

142s

Max time network

94s

Command Line

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\cmd.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
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N/A N/A N/A N/A

Checks installed software on the system

discovery

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\JITStarter.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3612 wrote to memory of 1596 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 3612 wrote to memory of 1596 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe
PID 3612 wrote to memory of 1596 N/A C:\Users\Admin\AppData\Local\Temp\JITStarter.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\JITStarter.exe

"C:\Users\Admin\AppData\Local\Temp\JITStarter.exe"

C:\Windows\SysWOW64\cmd.exe

/C vcredist86.exe /install /quiet /norestart

Network

Country Destination Domain Proto
US 8.8.8.8:53 cache.ryos.best udp
US 8.8.8.8:53 cache.ryos.lol udp
US 8.8.8.8:53 electronfilehosting.xyz udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
N/A 127.0.0.1:51617 tcp
N/A 127.0.0.1:51619 tcp
N/A 127.0.0.1:51621 tcp
N/A 127.0.0.1:51623 tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/3612-0-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-1-0x0000000077214000-0x0000000077216000-memory.dmp

memory/3612-2-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-4-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-5-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-3-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-7-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-6-0x0000000000640000-0x00000000010B4000-memory.dmp

memory/3612-8-0x0000000000640000-0x00000000010B4000-memory.dmp