Malware Analysis Report

2025-08-10 12:16

Sample ID 240610-1yj3hashpm
Target 51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049
SHA256 51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049
Tags
persistence upx
score
8/10

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
8/10

SHA256

51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049

Threat Level: Likely malicious

The file 51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049 was found to be: Likely malicious.

Malicious Activity Summary

persistence upx

Modifies AppInit DLL entries

UPX packed file

Drops file in System32 directory

Drops file in Windows directory

Program crash

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 22:03

Signatures

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 22:03

Reported

2024-06-10 22:06

Platform

win7-20240221-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe"

Signatures

Modifies AppInit DLL entries

persistence

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Wqk.dll C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe N/A
File created C:\Windows\SysWOW64\Wqk.dll C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\dextor32.exe C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe

"C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe"

Network

N/A

Files

memory/2456-112-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2456-111-0x0000000000220000-0x0000000000224000-memory.dmp

C:\Windows\Temp\[DiVX] Lord of The Rings Full Downloader.exe

MD5 a6d68c0136b73e29e2a21dccca766ea5
SHA1 381e61b4aac06a9fdc8ed0a9fb4de53d0121602b
SHA256 51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049
SHA512 4e6f7778a4c0b25e2572edc5a9f535905c098c37624711bcbc1684e10ebc03fd9946a05764273638031bc083d37a9dd633d8108477ab8e8d7699e76be304cea8

memory/2456-8-0x0000000000220000-0x0000000000224000-memory.dmp

memory/2456-7-0x0000000000220000-0x0000000000224000-memory.dmp

memory/2456-4-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2456-1-0x0000000000427000-0x0000000000429000-memory.dmp

memory/2456-0-0x0000000000400000-0x0000000000429000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 22:03

Reported

2024-06-10 22:05

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe"

Signatures

UPX packed file

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

Processes

C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe

"C:\Users\Admin\AppData\Local\Temp\51ecbac3dd3171d8db96cb7b78954ee16a6998a137df6c15f3f5ad2ff9526049.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 744 -ip 744

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 380

Network

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

Files

memory/744-0-0x0000000000400000-0x0000000000429000-memory.dmp

memory/744-1-0x0000000000427000-0x0000000000429000-memory.dmp

memory/744-2-0x0000000000400000-0x0000000000429000-memory.dmp