Malware Analysis Report

2025-03-14 23:52

Sample ID 240603-f6t78aec93
Target f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9
SHA256 f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9
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

f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9

Threat Level: Shows suspicious behavior

The file f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Executes dropped EXE

Deletes itself

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 05:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 05:29

Reported

2024-06-03 05:32

Platform

win7-20240215-en

Max time kernel

149s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe

"C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2204-0-0x0000000000400000-0x0000000000403000-memory.dmp

memory/2204-5-0x0000000000220000-0x0000000000223000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 f3a51a8801d219d5f0e91dfb7f11994c
SHA1 2d278a6a3b8e293da6c680bf761da32734f0d4d9
SHA256 1b5fd41068fe0d7266e66259949c7ff0476f1fd0e612cf4bc9cf62df5167796e
SHA512 50619c41c0a3294779f0c5c1213462217320b50e3774dc6d0ae6d9d253bc00fd80cb0661d6ecb19b33bf4acd859647485e2e266bdf7c862be402e5db5a40493b

memory/2212-8-0x0000000000400000-0x0000000000403000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 05:29

Reported

2024-06-03 05:32

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.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-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.exe

"C:\Users\Admin\AppData\Local\Temp\f34f07f5af4c70cae46133a231ea629408c20de0ecc84aadd3b9c3bf0eab52b9.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 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.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 14.227.111.52.in-addr.arpa udp

Files

memory/4228-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 f3a51a8801d219d5f0e91dfb7f11994c
SHA1 2d278a6a3b8e293da6c680bf761da32734f0d4d9
SHA256 1b5fd41068fe0d7266e66259949c7ff0476f1fd0e612cf4bc9cf62df5167796e
SHA512 50619c41c0a3294779f0c5c1213462217320b50e3774dc6d0ae6d9d253bc00fd80cb0661d6ecb19b33bf4acd859647485e2e266bdf7c862be402e5db5a40493b

memory/2644-5-0x0000000000400000-0x0000000000403000-memory.dmp