Malware Analysis Report

2025-03-15 07:00

Sample ID 231231-f4rdjsddan
Target 29f12f6e9f37fffbaea93b39b9050c09
SHA256 a3f8800b974f9b141987cf9a585a95af33766dde3361ac6087ad4f6cba2c6fbc
Tags
macro xlm
score
10/10

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
10/10

SHA256

a3f8800b974f9b141987cf9a585a95af33766dde3361ac6087ad4f6cba2c6fbc

Threat Level: Known bad

The file 29f12f6e9f37fffbaea93b39b9050c09 was found to be: Known bad.

Malicious Activity Summary

macro xlm

Process spawned unexpected child process

Suspicious Office macro

Modifies Internet Explorer settings

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-31 05:25

Signatures

Suspicious Office macro

macro xlm
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 05:25

Reported

2024-01-02 08:00

Platform

win7-20231215-en

Max time kernel

0s

Max time network

118s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\29f12f6e9f37fffbaea93b39b9050c09.xls

Signatures

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\SysWOW64\rundll32.exe C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Processes

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\29f12f6e9f37fffbaea93b39b9050c09.xls

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\ilD0.txt,DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 skill.fashion udp
US 8.8.8.8:53 syracuse.best udp

Files

memory/2500-1-0x000000007296D000-0x0000000072978000-memory.dmp

memory/2500-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2500-2-0x000000007296D000-0x0000000072978000-memory.dmp

memory/2500-3-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2500-4-0x000000007296D000-0x0000000072978000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 05:25

Reported

2024-01-02 08:01

Platform

win10v2004-20231222-en

Max time kernel

0s

Max time network

136s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\29f12f6e9f37fffbaea93b39b9050c09.xls"

Signatures

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\explorer.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Processes

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\29f12f6e9f37fffbaea93b39b9050c09.xls"

C:\Windows\explorer.exe

C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding

C:\Windows\explorer.exe

explorer.exe C:\Users\Public\Documents\kN1.vbs

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\kN1.vbs"

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 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 46.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 skill.fashion udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 9.179.89.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 42.134.221.88.in-addr.arpa udp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp

Files

memory/4952-2-0x00007FF7F7730000-0x00007FF7F7740000-memory.dmp

memory/4952-6-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-9-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-12-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-15-0x00007FF7F5620000-0x00007FF7F5630000-memory.dmp

memory/4952-18-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-20-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-22-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-23-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-21-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-19-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-17-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-16-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-14-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-13-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-11-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-10-0x00007FF7F5620000-0x00007FF7F5630000-memory.dmp

memory/4952-8-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-7-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-5-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp

memory/4952-4-0x00007FF7F7730000-0x00007FF7F7740000-memory.dmp

memory/4952-3-0x00007FF7F7730000-0x00007FF7F7740000-memory.dmp

memory/4952-1-0x00007FF7F7730000-0x00007FF7F7740000-memory.dmp

memory/4952-0-0x00007FF7F7730000-0x00007FF7F7740000-memory.dmp

memory/4952-35-0x00007FF8376B0000-0x00007FF8378A5000-memory.dmp