Malware Analysis Report

2025-01-02 03:07

Sample ID 240815-d9k3lsxhkl
Target MEGHAN's+2023+Organizer+ExtensionPDF.zip
SHA256 4c1114b5fb8124e3c834f812bc32dc6230adee16f5bbe6986cb9e093b3850b09
Tags
discovery remcos remotehost persistence rat
score
10/10

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4c1114b5fb8124e3c834f812bc32dc6230adee16f5bbe6986cb9e093b3850b09

Threat Level: Known bad

The file MEGHAN's+2023+Organizer+ExtensionPDF.zip was found to be: Known bad.

Malicious Activity Summary

discovery remcos remotehost persistence rat

Remcos

Adds Run key to start application

Suspicious use of NtCreateThreadExHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Modifies Internet Explorer settings

Modifies registry class

Opens file in notepad (likely ransom note)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-15 03:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-15 03:42

Reported

2024-08-15 03:44

Platform

win10-20240404-en

Max time kernel

39s

Max time network

19s

Command Line

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\1099.pdf"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-160447019-1232603106-4168707212-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4716 wrote to memory of 1376 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 4716 wrote to memory of 1376 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 4716 wrote to memory of 1376 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 1560 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
PID 1376 wrote to memory of 2276 N/A C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

Processes

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\1099.pdf"

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=99B56213BCAFADC39A264993F9149158 --mojo-platform-channel-handle=1624 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=ED5EAD785DFDBD21C1727A22BF668EB1 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=ED5EAD785DFDBD21C1727A22BF668EB1 --renderer-client-id=2 --mojo-platform-channel-handle=1648 --allow-no-sandbox-job /prefetch:1

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=1CAF28D80D0F1F10F116020149AB491A --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=1CAF28D80D0F1F10F116020149AB491A --renderer-client-id=4 --mojo-platform-channel-handle=2216 --allow-no-sandbox-job /prefetch:1

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=EB741FF427D2AC02EDAF5F32DE74FA9A --mojo-platform-channel-handle=2596 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=835F231D9EE98F012F65E72260D02ED4 --mojo-platform-channel-handle=1776 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe

"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=5F52D6AFBD8A2977618CE96EA6FB7C54 --mojo-platform-channel-handle=2356 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2

Network

Country Destination Domain Proto
US 8.8.8.8:53 135.244.100.95.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 146.140.123.92.in-addr.arpa udp

Files

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

MD5 3713eadf7c30faf32fe15c292bd134b3
SHA1 f494716f301fc50393b7d29984dfa51f9fc5fa1a
SHA256 7d1096aaf9d71ae22e92be3b99671f26328427e58fbff86ebb9f99d88dc43062
SHA512 0c267816b9402ca1044de9c717b3c4c12d4f71aba0e965a57a69f509761e07aff119e8c033a41b464114bd2d7341f7c856e0df136481bc71c05e99395b28edd1

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-15 03:42

Reported

2024-08-15 03:45

Platform

win10-20240404-en

Max time kernel

111s

Max time network

90s

Command Line

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

Signatures

Remcos

rat remcos

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\FirefoxData.dll,EntryPoint" C:\Windows\SysWOW64\reg.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\FirefoxData.dll,EntryPoint" C:\Windows\SysWOW64\reg.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\reg.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\reg.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4144 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 4144 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 4144 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 4144 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 4144 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 4144 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 4144 wrote to memory of 3596 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Windows\SysWOW64\cmd.exe
PID 4144 wrote to memory of 3596 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Windows\SysWOW64\cmd.exe
PID 4144 wrote to memory of 3596 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Windows\SysWOW64\cmd.exe
PID 3596 wrote to memory of 704 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 3596 wrote to memory of 704 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 3596 wrote to memory of 704 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2264 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 2264 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 2264 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 2264 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 2264 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 2264 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe
PID 2264 wrote to memory of 3816 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Windows\SysWOW64\cmd.exe
PID 2264 wrote to memory of 3816 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Windows\SysWOW64\cmd.exe
PID 2264 wrote to memory of 3816 N/A C:\Users\Admin\AppData\Local\Temp\TAXORGANIZERpdf.exe C:\Windows\SysWOW64\cmd.exe
PID 3816 wrote to memory of 992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 3816 wrote to memory of 992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 3816 wrote to memory of 992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 4824 wrote to memory of 1564 N/A C:\Windows\system32\OpenWith.exe C:\Windows\system32\NOTEPAD.EXE
PID 4824 wrote to memory of 1564 N/A C:\Windows\system32\OpenWith.exe C:\Windows\system32\NOTEPAD.EXE

Processes

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

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

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

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

C:\Windows\SysWOW64\cmd.exe

cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f & exit

C:\Windows\SysWOW64\reg.exe

reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

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

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

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

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

C:\Windows\SysWOW64\cmd.exe

cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f & exit

C:\Windows\SysWOW64\reg.exe

reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\2852192997\payload.dat

Network

Country Destination Domain Proto
US 8.8.8.8:53 privmerkt.com udp
BE 172.111.244.2:6042 privmerkt.com tcp
US 8.8.8.8:53 2.244.111.172.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/4144-0-0x0000000011000000-0x0000000011369000-memory.dmp

memory/4144-4-0x0000000010000000-0x0000000010204000-memory.dmp

memory/4144-5-0x0000000010000000-0x0000000010204000-memory.dmp

memory/4144-8-0x0000000010000000-0x0000000010204000-memory.dmp

memory/1584-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/4144-3-0x0000000010000000-0x0000000010204000-memory.dmp

memory/4144-2-0x0000000010026000-0x0000000010040000-memory.dmp

memory/4144-1-0x0000000010000000-0x0000000010204000-memory.dmp

memory/1584-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4144-14-0x000000001019E000-0x00000000101A5000-memory.dmp

memory/1584-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4144-20-0x0000000011000000-0x0000000011369000-memory.dmp

memory/1584-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2264-24-0x0000000011000000-0x0000000011369000-memory.dmp

memory/1584-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2264-28-0x0000000010000000-0x0000000010204000-memory.dmp

memory/2264-27-0x0000000010000000-0x0000000010204000-memory.dmp

memory/2264-31-0x0000000010000000-0x0000000010204000-memory.dmp

memory/4312-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4312-32-0x0000000000400000-0x0000000000482000-memory.dmp

C:\Users\Admin\Documents\FirefoxData.dll

MD5 3cabdfb2ed30a9b325c9774d98b36cf8
SHA1 56e808528e5e7dfb54ae2cc95bba600b5924a509
SHA256 cb15657ead7c4f9f3e03db2f7825522eb5e261837d17cc6b3ed09576e89342ac
SHA512 d29f1945e163fbfd87d6335d9bbfe4b1af06e2683c8d6d134a39077b17bcc01cf86d69ae395201f5483c56d50b1982f73a23504220717a300f80fc4f494649e2

memory/1584-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1584-38-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-08-15 03:42

Reported

2024-08-15 03:43

Platform

win10-20240404-en

Max time kernel

0s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1068 wrote to memory of 3004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1068 wrote to memory of 3004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1068 wrote to memory of 3004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1

Network

N/A

Files

N/A