Malware Analysis Report

2025-05-06 00:50

Sample ID 241109-y9z7ra1jgy
Target f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN
SHA256 f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364ed
Tags
discovery persistence
score
7/10

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
7/10

SHA256

f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364ed

Threat Level: Shows suspicious behavior

The file f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence

Deletes itself

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 20:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 20:29

Reported

2024-11-09 20:31

Platform

win7-20241010-en

Max time kernel

120s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe"

Signatures

Deletes itself

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

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe

"C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2280-0-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2280-6-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 3c5787b7c8139b6b521d2e62c8203f86
SHA1 4edd07ffd2b3bfa4363bd66ee3302be5d5a895cd
SHA256 59c093a1e65ca86d9140235164776579ee0af2845bd57af16fc4eb470691418b
SHA512 fd8e5bd5fdf2b9a3508dcc678405fb80bbf05fce5e7bb7ec51a77bb40625b34524b1c5f8368780458a229168e074cd098df755ec94077cd5724673fc062c263a

memory/1552-9-0x0000000000400000-0x000000000040F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 20:29

Reported

2024-11-09 20:32

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe"

Signatures

Deletes itself

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

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\microsofthelp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe

"C:\Users\Admin\AppData\Local\Temp\f6e138ede9c3fad6e421bc029463a540fd574f22c8149cf8603dbd7c5d8364edN.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp

Files

memory/4432-0-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 3c5787b7c8139b6b521d2e62c8203f86
SHA1 4edd07ffd2b3bfa4363bd66ee3302be5d5a895cd
SHA256 59c093a1e65ca86d9140235164776579ee0af2845bd57af16fc4eb470691418b
SHA512 fd8e5bd5fdf2b9a3508dcc678405fb80bbf05fce5e7bb7ec51a77bb40625b34524b1c5f8368780458a229168e074cd098df755ec94077cd5724673fc062c263a

memory/4432-5-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2880-6-0x0000000000400000-0x000000000040F000-memory.dmp