Malware Analysis Report

2025-08-11 08:18

Sample ID 241112-n4fk2s1mdx
Target f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe
SHA256 f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be
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

f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be

Threat Level: Shows suspicious behavior

The file f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe 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

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 11:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 11:56

Reported

2024-11-12 11:58

Platform

win7-20240903-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.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\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe

"C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/1632-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 78eb46c4e0f521b169bf23cd6c1fd5a0
SHA1 51e8eb50ab26cfdbc853262c422bcdd56d225f93
SHA256 8371c8862290ccbb084743433361395a4adf2aa6dbf21ac7b9cbe323e69c1ef0
SHA512 93f9165b64446f30ad8d84bd492b40460d51ee3ad7411c2a8fad1c59722610e3e89c1b79910629e26ddafd7cfb6da659057bf747f1dcba66ec2b6ecb7d28858f

memory/1632-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2540-10-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 11:56

Reported

2024-11-12 11:58

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.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\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.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\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe

"C:\Users\Admin\AppData\Local\Temp\f4697f6b22d0b23fd1acd67a5fb52b34cecd91125594f5a9ffe37b060f1ff9be.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4676-0-0x0000000000400000-0x000000000040E000-memory.dmp

memory/4676-4-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 78eb46c4e0f521b169bf23cd6c1fd5a0
SHA1 51e8eb50ab26cfdbc853262c422bcdd56d225f93
SHA256 8371c8862290ccbb084743433361395a4adf2aa6dbf21ac7b9cbe323e69c1ef0
SHA512 93f9165b64446f30ad8d84bd492b40460d51ee3ad7411c2a8fad1c59722610e3e89c1b79910629e26ddafd7cfb6da659057bf747f1dcba66ec2b6ecb7d28858f

memory/4032-7-0x0000000000400000-0x000000000040E000-memory.dmp