Malware Analysis Report

2025-03-15 07:56

Sample ID 240806-14jzpasdjn
Target a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1
SHA256 a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1
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

a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1

Threat Level: Likely malicious

The file a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1 was found to be: Likely malicious.

Malicious Activity Summary

macro macro_on_action discovery

Office macro that triggers on suspicious action

Suspicious Office macro

System Location Discovery: System Language Discovery

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-06 22:12

Signatures

Office macro that triggers on suspicious action

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

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 22:12

Reported

2024-08-06 22:13

Platform

win7-20240704-en

Max time kernel

26s

Max time network

19s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1.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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
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\a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1.xls

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

Network

N/A

Files

memory/3012-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/3012-1-0x0000000071EDD000-0x0000000071EE8000-memory.dmp

memory/3012-5-0x0000000007C70000-0x0000000007D70000-memory.dmp

memory/3012-9-0x0000000071EDD000-0x0000000071EE8000-memory.dmp

memory/3012-10-0x0000000007C70000-0x0000000007D70000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 22:12

Reported

2024-08-06 22:13

Platform

win10v2004-20240802-en

Max time kernel

33s

Max time network

41s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1.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 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:\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

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 3096 wrote to memory of 968 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\splwow64.exe
PID 3096 wrote to memory of 968 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\a743c27f7c300ade46c8d04612cc7d9124d3d05e82c0dd5b5f5dfb1325dc99d1.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 18.89.109.52.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 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp

Files

memory/3096-0-0x00007FFEBAF50000-0x00007FFEBAF60000-memory.dmp

memory/3096-2-0x00007FFEBAF50000-0x00007FFEBAF60000-memory.dmp

memory/3096-1-0x00007FFEBAF50000-0x00007FFEBAF60000-memory.dmp

memory/3096-5-0x00007FFEFAF6D000-0x00007FFEFAF6E000-memory.dmp

memory/3096-4-0x00007FFEBAF50000-0x00007FFEBAF60000-memory.dmp

memory/3096-3-0x00007FFEBAF50000-0x00007FFEBAF60000-memory.dmp

memory/3096-9-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-8-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-7-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-6-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-10-0x00007FFEB8C20000-0x00007FFEB8C30000-memory.dmp

memory/3096-12-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-13-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-14-0x00007FFEB8C20000-0x00007FFEB8C30000-memory.dmp

memory/3096-11-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-15-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-16-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-17-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-19-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-21-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-22-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-20-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

memory/3096-18-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp

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

MD5 22b4dac5ef972521cdf9ff3d2e15e1cb
SHA1 716c4bcdea948d2f37a1b26a2d43b30576408f66
SHA256 87f255f342e28384ea39bf2be752e37d6c3b230daf45e6de6e66d3b81bb54ab3
SHA512 4f26e7e6955de3f5aba36b929e30f03657deec9845b1197745086cf92f1f0e07fb37d3cf021d12a12f9acfc36b1854fa9685ed0ceaec9f4ee16364b290e56d6b

memory/3096-41-0x00007FFEFAED0000-0x00007FFEFB0C5000-memory.dmp