Malware Analysis Report

2025-01-22 12:10

Sample ID 240531-b6qsksaf4z
Target b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad
SHA256 b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad
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

b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad

Threat Level: Likely malicious

The file b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad was found to be: Likely malicious.

Malicious Activity Summary

macro

Suspicious Office macro

Process spawned suspicious child process

Office loads VBA resources, possible macro or embedded object present

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 01:45

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 01:45

Reported

2024-05-31 01:46

Platform

win7-20240221-en

Max time kernel

44s

Max time network

17s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.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
Key created \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\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

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\b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.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/2220-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2220-1-0x0000000072C1D000-0x0000000072C28000-memory.dmp

memory/2220-26-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-39-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-65-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-64-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-66-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-67-0x0000000072C1D000-0x0000000072C28000-memory.dmp

memory/2220-68-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-69-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-70-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-71-0x00000000062F0000-0x00000000063F0000-memory.dmp

memory/2220-72-0x00000000062F0000-0x00000000063F0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 01:45

Reported

2024-05-31 01:46

Platform

win10v2004-20240426-en

Max time kernel

33s

Max time network

35s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.xlsm"

Signatures

Process spawned suspicious 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:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
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:\Windows\system32\dwwin.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\dwwin.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\dwwin.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\system32\dwwin.exe N/A
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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\system32\dwwin.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\b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.xlsm"

C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE

"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4796

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4796

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 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 18.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
NL 52.109.89.19:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 19.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp

Files

memory/1968-0-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/1968-2-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/1968-1-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/1968-3-0x00007FF85BFAD000-0x00007FF85BFAE000-memory.dmp

memory/1968-4-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/1968-5-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/1968-8-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-7-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-6-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-9-0x00007FF819B70000-0x00007FF819B80000-memory.dmp

memory/1968-12-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-13-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-14-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-16-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-17-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-15-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-11-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-10-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp

memory/1968-18-0x00007FF819B70000-0x00007FF819B80000-memory.dmp

memory/4232-56-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/4232-58-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/4232-57-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/4232-55-0x00007FF81BF90000-0x00007FF81BFA0000-memory.dmp

memory/1968-59-0x00007FF85BF10000-0x00007FF85C105000-memory.dmp