Malware Analysis Report

2024-10-19 11:12

Sample ID 240208-zmtl5acd68
Target ACFrOgA_MEIH1PFAhw6h0-KUrRuvCrBIMRsTxF5OzEK_ruIi3ccyoRlt3Rt8ApiSDryTJve3-6y0IUIp1WqxP1T9uyz0OvZxGehTIXOtSeQTHh6mOUdoOtUfoP4cY0Wfp7L0s8K6X5eC9QVaW1cm.pdf
SHA256 42896c302d2064e8e8ee73171b002879428cf88747c15602452f9fd5d1b0b58b
Tags
pdf javascript
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

42896c302d2064e8e8ee73171b002879428cf88747c15602452f9fd5d1b0b58b

Threat Level: Shows suspicious behavior

The file ACFrOgA_MEIH1PFAhw6h0-KUrRuvCrBIMRsTxF5OzEK_ruIi3ccyoRlt3Rt8ApiSDryTJve3-6y0IUIp1WqxP1T9uyz0OvZxGehTIXOtSeQTHh6mOUdoOtUfoP4cY0Wfp7L0s8K6X5eC9QVaW1cm.pdf was found to be: Shows suspicious behavior.

Malicious Activity Summary

pdf javascript

PDF contains JavaScript

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-02-08 20:50

Signatures

PDF contains JavaScript

pdf javascript

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-08 20:50

Reported

2024-02-08 21:34

Platform

win7-20231215-en

Max time kernel

1566s

Max time network

1569s

Command Line

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ACFrOgA_MEIH1PFAhw6h0-KUrRuvCrBIMRsTxF5OzEK_ruIi3ccyoRlt3Rt8ApiSDryTJve3-6y0IUIp1WqxP1T9uyz0OvZxGehT.pdf"

Signatures

Modifies registry class

Description Indicator Process Target
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 C:\Windows\splwow64.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0" C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_Classes\Local Settings C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 C:\Windows\splwow64.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}" C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags C:\Windows\splwow64.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}" C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000 C:\Windows\splwow64.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell C:\Windows\splwow64.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000 C:\Windows\splwow64.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff C:\Windows\splwow64.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\splwow64.exe N/A

Processes

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ACFrOgA_MEIH1PFAhw6h0-KUrRuvCrBIMRsTxF5OzEK_ruIi3ccyoRlt3Rt8ApiSDryTJve3-6y0IUIp1WqxP1T9uyz0OvZxGehT.pdf"

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

Network

N/A

Files

memory/2172-2-0x00000000041B0000-0x00000000041B1000-memory.dmp

memory/2172-3-0x0000000004290000-0x00000000042A0000-memory.dmp

memory/2172-4-0x00000000041B0000-0x00000000041B1000-memory.dmp