Malware Analysis Report

2025-01-22 15:46

Sample ID 231222-tkvthsgaf3
Target e88133dbf546b70c8226b6d8085f4d4a
SHA256 849f1f8d68e4ef6069302abc1bff17e878fa98ab8fdd7e78454c80e01f018af6
Tags
xlm
score
10/10

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
10/10

SHA256

849f1f8d68e4ef6069302abc1bff17e878fa98ab8fdd7e78454c80e01f018af6

Threat Level: Known bad

The file e88133dbf546b70c8226b6d8085f4d4a was found to be: Known bad.

Malicious Activity Summary

xlm

Process spawned unexpected child process

Process spawned suspicious child process

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-22 16:07

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-22 16:07

Reported

2023-12-24 05:42

Platform

win10v2004-20231222-en

Max time kernel

145s

Max time network

149s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\e88133dbf546b70c8226b6d8085f4d4a.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 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
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 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
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

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\e88133dbf546b70c8226b6d8085f4d4a.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 3880

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 3880

Network

Country Destination Domain Proto
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 89.16.208.104.in-addr.arpa udp

Files

memory/3304-3-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/3304-6-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-7-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-11-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-14-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-13-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-16-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-18-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-20-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-21-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-23-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-22-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-19-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-17-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-15-0x00007FFCD54D0000-0x00007FFCD54E0000-memory.dmp

memory/3304-12-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/804-30-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-10-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/804-34-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/804-33-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/804-32-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-9-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-8-0x00007FFCD54D0000-0x00007FFCD54E0000-memory.dmp

memory/3304-5-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/3304-4-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/3304-2-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/3304-1-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/3304-0-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/3304-39-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/804-42-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/804-46-0x00007FFD174B0000-0x00007FFD176A5000-memory.dmp

memory/804-45-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/804-44-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

memory/804-43-0x00007FFCD7530000-0x00007FFCD7540000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-22 16:07

Reported

2023-12-24 05:42

Platform

win7-20231129-en

Max time kernel

0s

Max time network

120s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\e88133dbf546b70c8226b6d8085f4d4a.xlsm

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\wscript.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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\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-1-5-21-3627615824-4061627003-3019543961-1000\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-1-5-21-3627615824-4061627003-3019543961-1000\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-1-5-21-3627615824-4061627003-3019543961-1000\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\e88133dbf546b70c8226b6d8085f4d4a.xlsm

C:\Windows\SysWOW64\wscript.exe

wscript C:\zer\spp.vbs

Network

Country Destination Domain Proto
NL 46.17.98.187:80 tcp
NL 46.17.98.187:80 tcp
US 8.8.8.8:53 google.com udp
GB 216.58.212.238:80 google.com tcp

Files

memory/2820-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2820-1-0x0000000072CAD000-0x0000000072CB8000-memory.dmp

memory/2820-2-0x0000000072CAD000-0x0000000072CB8000-memory.dmp

memory/2820-5-0x0000000072CAD000-0x0000000072CB8000-memory.dmp

memory/2820-4-0x000000005FFF0000-0x0000000060000000-memory.dmp