Malware Analysis Report

2025-04-03 13:15

Sample ID 241109-18altasngy
Target 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N
SHA256 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375
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

786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375

Threat Level: Shows suspicious behavior

The file 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N 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 22:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 22:18

Reported

2024-11-09 22:20

Platform

win7-20240903-en

Max time kernel

119s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.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\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe

"C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2640-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 52049498a223916b0cabf5d129451b06
SHA1 9263ae2d0a8551f28f431cd2c8523ed4802552e4
SHA256 da4b7819cd7b7d6644f99084b92eb270fcac4f496f3144fe0068b66dc60419e5
SHA512 9ecbf4635037362d7c77876385c8e5a40fcf05d4b51e3b4696063cf2261bb3e8734befd137cef2d0a1d7e215821e8d79419855b15f62642b4c2ec38cdf447fd3

memory/2640-3-0x00000000001B0000-0x00000000001B3000-memory.dmp

memory/1780-8-0x0000000000400000-0x0000000000403000-memory.dmp

memory/1780-10-0x0000000000400000-0x0000000000403000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 22:18

Reported

2024-11-09 22:20

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\microsofthelp.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe

"C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/1000-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 52049498a223916b0cabf5d129451b06
SHA1 9263ae2d0a8551f28f431cd2c8523ed4802552e4
SHA256 da4b7819cd7b7d6644f99084b92eb270fcac4f496f3144fe0068b66dc60419e5
SHA512 9ecbf4635037362d7c77876385c8e5a40fcf05d4b51e3b4696063cf2261bb3e8734befd137cef2d0a1d7e215821e8d79419855b15f62642b4c2ec38cdf447fd3

memory/1000-4-0x0000000000400000-0x0000000000403000-memory.dmp

memory/3820-6-0x0000000000400000-0x0000000000403000-memory.dmp