Malware Analysis Report

2025-01-22 12:10

Sample ID 240531-b9dmesbh84
Target ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b
SHA256 ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b
Tags
macro
score
8/10

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
8/10

SHA256

ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b

Threat Level: Likely malicious

The file ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b was found to be: Likely malicious.

Malicious Activity Summary

macro

Suspicious Office macro

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 01:50

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 01:50

Reported

2024-05-31 01:51

Platform

win7-20240215-en

Max time kernel

52s

Max time network

16s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b.xlsm

Signatures

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\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-1-5-21-2248906074-2862704502-246302768-1000\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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A 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\ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b.xlsm

Network

Country Destination Domain Proto
US 8.8.8.8:53 docs.google.com udp
GB 142.250.200.14:443 docs.google.com tcp
US 8.8.8.8:53 www.dropbox.com udp
GB 162.125.64.18:443 www.dropbox.com tcp
GB 162.125.64.18:443 www.dropbox.com tcp

Files

memory/2876-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2876-1-0x00000000723BD000-0x00000000723C8000-memory.dmp

memory/2876-26-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-65-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-64-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-63-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-66-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-67-0x00000000723BD000-0x00000000723C8000-memory.dmp

memory/2876-68-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-69-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-70-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-71-0x0000000006260000-0x0000000006360000-memory.dmp

memory/2876-72-0x0000000006260000-0x0000000006360000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 01:50

Reported

2024-05-31 01:51

Platform

win10v2004-20240508-en

Max time kernel

47s

Max time network

36s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b.xlsm"

Signatures

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

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\ef9dd1340e29505485c1cf3e61e762eeb19286568b8c6db779dedac86a95f82b.xlsm"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
FR 52.109.68.129:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 46.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 129.68.109.52.in-addr.arpa udp
US 8.8.8.8:53 docs.google.com udp
GB 142.250.200.14:443 docs.google.com tcp
US 8.8.8.8:53 www.dropbox.com udp
GB 162.125.64.18:443 www.dropbox.com tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 14.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 18.64.125.162.in-addr.arpa udp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp

Files

memory/3972-0-0x00007FFEEE9B0000-0x00007FFEEE9C0000-memory.dmp

memory/3972-4-0x00007FFEEE9B0000-0x00007FFEEE9C0000-memory.dmp

memory/3972-3-0x00007FFEEE9B0000-0x00007FFEEE9C0000-memory.dmp

memory/3972-1-0x00007FFF2E9CD000-0x00007FFF2E9CE000-memory.dmp

memory/3972-2-0x00007FFEEE9B0000-0x00007FFEEE9C0000-memory.dmp

memory/3972-9-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-8-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-7-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-6-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-5-0x00007FFEEE9B0000-0x00007FFEEE9C0000-memory.dmp

memory/3972-10-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-12-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-13-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-11-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-15-0x00007FFEEC7C0000-0x00007FFEEC7D0000-memory.dmp

memory/3972-14-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-16-0x00007FFEEC7C0000-0x00007FFEEC7D0000-memory.dmp

memory/3972-18-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-17-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-69-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-155-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-156-0x00007FFF2E9CD000-0x00007FFF2E9CE000-memory.dmp

memory/3972-157-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp

memory/3972-158-0x00007FFF2E930000-0x00007FFF2EB25000-memory.dmp