Malware Analysis Report

2025-08-05 16:58

Sample ID 250127-zcv27svjh1
Target 24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa
SHA256 24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa
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

24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa

Threat Level: Shows suspicious behavior

The file 24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa 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

2025-01-27 20:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 20:34

Reported

2025-01-27 20:37

Platform

win7-20240903-en

Max time kernel

149s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.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\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe

"C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2420-0-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2420-3-0x0000000000220000-0x000000000022F000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 6a5c6a06af66c88d184acaa4d79f66b2
SHA1 4e1a49feb78cdd6acfc0a4a93a8fbf2ca41571d4
SHA256 9da563c7837ca076913012cf31eb1c13c84640b0a3cf529116976a5fd89430cf
SHA512 cf4fed5d755e2cadf7b0a3b43d07df204f8ada1960c45362a30b3f043c559f26f3fbf22bc2bc446bf5900a96e194dcb16e68960ec9f5a4cd11b0241ec64df4d3

memory/1860-8-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1860-10-0x0000000000400000-0x000000000040F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 20:34

Reported

2025-01-27 20:37

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.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\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.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\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.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\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe

"C:\Users\Admin\AppData\Local\Temp\24e7e811fd19dc33933586e08b99a2890337b8581313f8f5ace2d0eb2bd38baa.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 5.114.82.104.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/3352-0-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 6a5c6a06af66c88d184acaa4d79f66b2
SHA1 4e1a49feb78cdd6acfc0a4a93a8fbf2ca41571d4
SHA256 9da563c7837ca076913012cf31eb1c13c84640b0a3cf529116976a5fd89430cf
SHA512 cf4fed5d755e2cadf7b0a3b43d07df204f8ada1960c45362a30b3f043c559f26f3fbf22bc2bc446bf5900a96e194dcb16e68960ec9f5a4cd11b0241ec64df4d3

memory/3352-5-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1264-6-0x0000000000400000-0x000000000040F000-memory.dmp