Malware Analysis Report

2025-01-22 19:07

Sample ID 240719-1fkw3s1cln
Target d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb
SHA256 d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb
Tags
macro macro_on_action
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

d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb

Threat Level: Likely malicious

The file d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb was found to be: Likely malicious.

Malicious Activity Summary

macro macro_on_action

Office macro that triggers on suspicious action

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-19 21:35

Signatures

Office macro that triggers on suspicious action

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-19 21:35

Reported

2024-07-19 21:36

Platform

win7-20240704-en

Max time kernel

24s

Max time network

16s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb.xls

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

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\d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb.xls

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

Network

N/A

Files

memory/1620-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1620-1-0x000000007208D000-0x0000000072098000-memory.dmp

memory/1620-8-0x0000000006260000-0x0000000006360000-memory.dmp

memory/1620-9-0x000000007208D000-0x0000000072098000-memory.dmp

memory/1620-10-0x0000000006260000-0x0000000006360000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-19 21:35

Reported

2024-07-19 21:36

Platform

win10v2004-20240709-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\d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb.xls"

Signatures

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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3192 wrote to memory of 4380 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\splwow64.exe
PID 3192 wrote to memory of 4380 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\splwow64.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\d3540c4ed29999b8a604d7515fccd976ad37cf2da35d6ae57c34ab9125d6ebbb.xls"

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc

Network

Country Destination Domain Proto
US 8.8.8.8:53 roaming.officeapps.live.com udp
NL 52.109.89.19:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 19.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 226.162.46.104.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 59.170.16.2.in-addr.arpa udp

Files

memory/3192-0-0x00007FF9119D0000-0x00007FF9119E0000-memory.dmp

memory/3192-2-0x00007FF9119D0000-0x00007FF9119E0000-memory.dmp

memory/3192-1-0x00007FF9119D0000-0x00007FF9119E0000-memory.dmp

memory/3192-4-0x00007FF9119D0000-0x00007FF9119E0000-memory.dmp

memory/3192-3-0x00007FF9119D0000-0x00007FF9119E0000-memory.dmp

memory/3192-5-0x00007FF9519ED000-0x00007FF9519EE000-memory.dmp

memory/3192-9-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-8-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-13-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-12-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-14-0x00007FF90F610000-0x00007FF90F620000-memory.dmp

memory/3192-11-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-15-0x00007FF90F610000-0x00007FF90F620000-memory.dmp

memory/3192-10-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-17-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-19-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-20-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-18-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-16-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-7-0x00007FF951950000-0x00007FF951B45000-memory.dmp

memory/3192-6-0x00007FF951950000-0x00007FF951B45000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

MD5 c3fba03668b01701e01cdfdc727943d6
SHA1 e0cd4789040068dc0a22821b30bddba92213570a
SHA256 99dfbff3ba62ba741efeea8f2b7c8cfd9a4df7b676aead13c497a0a909203ef1
SHA512 322094c034fc636274344edb4c18ae2792f5416323fff9f16bdf89efce51ef9f1aec0e17422273ee85df0d78b23e0566ad5a22ef15d204c535515b3bde9ea436

memory/3192-46-0x00007FF951950000-0x00007FF951B45000-memory.dmp