Malware Analysis Report

2024-12-07 10:28

Sample ID 241113-wb5y8swfmc
Target 9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe
SHA256 e7a2ae92cda0c07efb5ef96fbbffbfe3f9cd8d01351fa200ee976152ef631c6f
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

e7a2ae92cda0c07efb5ef96fbbffbfe3f9cd8d01351fa200ee976152ef631c6f

Threat Level: Shows suspicious behavior

The file 9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.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

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 17:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 17:45

Reported

2024-11-13 17:47

Platform

win7-20240903-en

Max time kernel

119s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.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\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe

"C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2532-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 63d92c4eb53ab828793b031f8c2f4b9d
SHA1 c2c33730acaa09144c1f7d91734c439520f2dbdb
SHA256 add830bf0b54c6fa43c60f543bd7c34c20a8853df94dc11ac25bd3a0fa82e0cf
SHA512 5ed79e6d60a57908dda83520e6ed1150afbe4632ef60ddb728225deff67a832905f2942de92eba26f198a9b383c5c441e25569906e633a5301be1f6f3b84d8cb

memory/2532-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2512-9-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2512-11-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 17:45

Reported

2024-11-13 17:47

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.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\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.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\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe

"C:\Users\Admin\AppData\Local\Temp\9706359ea464c5cf427ec56d6c6a07a3570117e77850ea5e9f259f6f10ffd6c8N.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 71.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/5064-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 63d92c4eb53ab828793b031f8c2f4b9d
SHA1 c2c33730acaa09144c1f7d91734c439520f2dbdb
SHA256 add830bf0b54c6fa43c60f543bd7c34c20a8853df94dc11ac25bd3a0fa82e0cf
SHA512 5ed79e6d60a57908dda83520e6ed1150afbe4632ef60ddb728225deff67a832905f2942de92eba26f198a9b383c5c441e25569906e633a5301be1f6f3b84d8cb

memory/5064-5-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2580-6-0x0000000000400000-0x000000000040E000-memory.dmp