Malware Analysis Report

2025-03-15 00:05

Sample ID 240603-12am8sag5v
Target 5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c
SHA256 5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c
Tags
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

5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c

Threat Level: Shows suspicious behavior

The file 5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Deletes itself

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 22:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 22:08

Reported

2024-06-03 22:10

Platform

win7-20240508-en

Max time kernel

149s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe

"C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2348-0-0x0000000000400000-0x0000000000403000-memory.dmp

memory/2348-7-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 71448277a9324c098702fbf810a9bd4e
SHA1 a8de409421793ccba0664d7221e51a27d45935fc
SHA256 073161b03187cccbd11334aa8ca8cde424c2ee763db3858b4ab7257e69d18877
SHA512 2f4ab062eba73a3c68ee9d34ac34c704cb1dcacb90d8f02968f638410e33c0e686f8680ed7734b7ed1bed0af6092e72803e4b902d0bccc3c4a86a06ce3119832

memory/2348-6-0x0000000000220000-0x0000000000223000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 22:08

Reported

2024-06-03 22:10

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe

"C:\Users\Admin\AppData\Local\Temp\5e3c1d9694718104a42471e9acdc9cc72bf8731a3da97308d6b9a0f248b8d93c.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/2880-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 71448277a9324c098702fbf810a9bd4e
SHA1 a8de409421793ccba0664d7221e51a27d45935fc
SHA256 073161b03187cccbd11334aa8ca8cde424c2ee763db3858b4ab7257e69d18877
SHA512 2f4ab062eba73a3c68ee9d34ac34c704cb1dcacb90d8f02968f638410e33c0e686f8680ed7734b7ed1bed0af6092e72803e4b902d0bccc3c4a86a06ce3119832

memory/2880-4-0x0000000000400000-0x0000000000403000-memory.dmp

memory/228-6-0x0000000000400000-0x0000000000403000-memory.dmp