Malware Analysis Report

2025-01-22 19:11

Sample ID 240724-c6xfssxana
Target a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9.xls
SHA256 a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9
Tags
macro macro_on_action discovery
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

a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9

Threat Level: Likely malicious

The file a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9.xls was found to be: Likely malicious.

Malicious Activity Summary

macro macro_on_action discovery

Office macro that triggers on suspicious action

System Location Discovery: System Language Discovery

Office loads VBA resources, possible macro or embedded object present

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-24 02:41

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

2024-07-24 02:41

Reported

2024-07-24 02:44

Platform

win7-20240704-en

Max time kernel

144s

Max time network

120s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9.xls

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

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\a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9.xls

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

Network

N/A

Files

memory/2508-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2508-1-0x000000007252D000-0x0000000072538000-memory.dmp

memory/2508-34-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-42-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-33-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-32-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-31-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-30-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-29-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-28-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-27-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-26-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-25-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-24-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-22-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-21-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-20-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-19-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-18-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-17-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-16-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-15-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-14-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-13-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-12-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-11-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-9-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-6-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-4-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-36-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-23-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-10-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-5-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-43-0x000000007252D000-0x0000000072538000-memory.dmp

memory/2508-44-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-45-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-48-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-49-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-50-0x0000000000540000-0x0000000000640000-memory.dmp

memory/2508-51-0x0000000000540000-0x0000000000640000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-24 02:41

Reported

2024-07-24 02:44

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9.xls"

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

Suspicious use of FindShellTrayWindow

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3868 wrote to memory of 1772 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\splwow64.exe
PID 3868 wrote to memory of 1772 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\a908acf29dde8279b28c8b1b15892cf602a90a0d387b904176d63d7eac0203b9.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
GB 52.109.28.47:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 47.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.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
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/3868-0-0x00007FF9034F0000-0x00007FF903500000-memory.dmp

memory/3868-1-0x00007FF9034F0000-0x00007FF903500000-memory.dmp

memory/3868-3-0x00007FF9034F0000-0x00007FF903500000-memory.dmp

memory/3868-2-0x00007FF9034F0000-0x00007FF903500000-memory.dmp

memory/3868-4-0x00007FF9034F0000-0x00007FF903500000-memory.dmp

memory/3868-5-0x00007FF94350D000-0x00007FF94350E000-memory.dmp

memory/3868-8-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-9-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-12-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-13-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-14-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-15-0x00007FF900B90000-0x00007FF900BA0000-memory.dmp

memory/3868-11-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-16-0x00007FF900B90000-0x00007FF900BA0000-memory.dmp

memory/3868-10-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-7-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-6-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-18-0x00007FF943470000-0x00007FF943665000-memory.dmp

memory/3868-17-0x00007FF943470000-0x00007FF943665000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC

MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

memory/3868-49-0x00007FF943470000-0x00007FF943665000-memory.dmp