Malware Analysis Report

2025-06-15 22:28

Sample ID 241109-yjlaxa1cjq
Target 363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN
SHA256 363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9ac
Tags
discovery persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9ac

Threat Level: Shows suspicious behavior

The file 363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN 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

2024-11-09 19:48

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 19:48

Reported

2024-11-09 19:51

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.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\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.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\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.exe

"C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.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 67.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/316-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 87e44fe2eaf797dd2cb6bede92671edd
SHA1 8a2763f7a3cde242c460e40cd6eafcc00182a2dd
SHA256 914f3f735d398f8a8bc76ad0c59ce0cf4178a3d447c329077a59cdc469823b5d
SHA512 1be32d57cd53f9e030ecbc17b1267f0251b83e6487594d6508bbe431a12f0f3e3adf44057400791d295b5c2c76ee138207d910f3c6aa6ad7311174d129965f29

memory/316-4-0x0000000000400000-0x0000000000403000-memory.dmp

memory/1200-6-0x0000000000400000-0x0000000000403000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 19:48

Reported

2024-11-09 19:50

Platform

win7-20240903-en

Max time kernel

119s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.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\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.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\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.exe

"C:\Users\Admin\AppData\Local\Temp\363fffd707670d52d209b5d811556cdd48e076198eac491fd3ccf1cd4836d9acN.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2556-0-0x0000000000400000-0x0000000000403000-memory.dmp

memory/2556-6-0x0000000000400000-0x0000000000403000-memory.dmp

memory/1556-8-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 87e44fe2eaf797dd2cb6bede92671edd
SHA1 8a2763f7a3cde242c460e40cd6eafcc00182a2dd
SHA256 914f3f735d398f8a8bc76ad0c59ce0cf4178a3d447c329077a59cdc469823b5d
SHA512 1be32d57cd53f9e030ecbc17b1267f0251b83e6487594d6508bbe431a12f0f3e3adf44057400791d295b5c2c76ee138207d910f3c6aa6ad7311174d129965f29

memory/1556-10-0x0000000000400000-0x0000000000403000-memory.dmp