Malware Analysis Report

2025-01-03 05:20

Sample ID 221207-w75y4sag2w
Target Ktxjyphnzqtbbb.exe
SHA256 a9da7b242be8ba00f35c48183b953f5e792c948a57ed1043f6759a5b61f19d70
Tags
modiloader trojan bitrat persistence upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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
10/10

SHA256

a9da7b242be8ba00f35c48183b953f5e792c948a57ed1043f6759a5b61f19d70

Threat Level: Known bad

The file Ktxjyphnzqtbbb.exe was found to be: Known bad.

Malicious Activity Summary

modiloader trojan bitrat persistence upx

BitRAT

ModiLoader, DBatLoader

ModiLoader Second Stage

Blocklisted process makes network request

UPX packed file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-12-07 18:34

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-12-07 18:34

Reported

2022-12-07 18:38

Platform

win7-20220812-en

Max time kernel

168s

Max time network

184s

Command Line

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

Signatures

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

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

Processes

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

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

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 onedrive.live.com udp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 13.107.43.13:443 onedrive.live.com tcp

Files

memory/960-54-0x0000000076091000-0x0000000076093000-memory.dmp

memory/960-55-0x0000000000370000-0x000000000039B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-12-07 18:34

Reported

2022-12-07 18:38

Platform

win10v2004-20221111-en

Max time kernel

185s

Max time network

213s

Command Line

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

Signatures

BitRAT

trojan bitrat

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

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

Blocklisted process makes network request

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

UPX packed file

upx
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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ktxjyphn = "C:\\Users\\Public\\Libraries\\nhpyjxtK.url" C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\wscript.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe
PID 1820 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\Ktxjyphnzqtbbb.exe C:\Windows\SysWOW64\wscript.exe

Processes

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

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

C:\Windows\SysWOW64\wscript.exe

C:\Windows\System32\wscript.exe

Network

Country Destination Domain Proto
N/A 52.152.108.96:443 tcp
N/A 104.80.225.205:443 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 52.182.143.208:443 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 40.126.32.133:443 tcp
N/A 20.190.160.22:443 tcp
N/A 20.40.136.238:443 tcp
N/A 8.8.8.8:53 106.89.54.20.in-addr.arpa udp
N/A 8.8.8.8:53 onedrive.live.com udp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 8.8.8.8:53 6.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa udp
N/A 13.107.43.13:443 onedrive.live.com tcp
N/A 8.8.8.8:53 dilglw.ch.files.1drv.com udp
N/A 13.107.43.12:443 dilglw.ch.files.1drv.com tcp
N/A 8.8.8.8:53 su1d.nerdpol.ovh udp
N/A 4.236.162.205:2288 su1d.nerdpol.ovh tcp

Files

memory/1820-132-0x0000000002780000-0x00000000027AB000-memory.dmp

memory/4800-134-0x0000000000000000-mapping.dmp

memory/1820-135-0x0000000010410000-0x00000000107F4000-memory.dmp

memory/1820-136-0x0000000010410000-0x00000000107F4000-memory.dmp

memory/4800-138-0x0000000010410000-0x00000000107F4000-memory.dmp

memory/4800-139-0x0000000010410000-0x00000000107F4000-memory.dmp

memory/4800-140-0x00000000750D0000-0x0000000075109000-memory.dmp

memory/4800-141-0x0000000010410000-0x00000000107F4000-memory.dmp