Malware Analysis Report

2025-01-22 16:12

Sample ID 241104-z5fg8azner
Target 5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf
SHA256 5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf
Tags
macro xlm discovery
score
10/10

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
10/10

SHA256

5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf

Threat Level: Known bad

The file 5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf was found to be: Known bad.

Malicious Activity Summary

macro xlm discovery

Process spawned unexpected child process

Suspicious Office macro

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks processor information in registry

Modifies registry class

Suspicious use of FindShellTrayWindow

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-04 21:17

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 21:17

Reported

2024-11-04 21:18

Platform

win7-20240903-en

Max time kernel

19s

Max time network

16s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf.xls

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\rundll32.exe C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

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\5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf.xls

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\YtpEndc.txt,DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 syracuse.best udp
US 8.8.8.8:53 skill.fashion udp

Files

memory/1908-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1908-1-0x00000000725ED000-0x00000000725F8000-memory.dmp

memory/1908-2-0x00000000725ED000-0x00000000725F8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-04 21:17

Reported

2024-11-04 21:18

Platform

win10v2004-20241007-en

Max time kernel

59s

Max time network

39s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf.xls"

Signatures

Process spawned unexpected 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:\Windows\explorer.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

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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings C:\Windows\explorer.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3120 wrote to memory of 2112 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\explorer.exe
PID 3120 wrote to memory of 2112 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\explorer.exe
PID 2692 wrote to memory of 2740 N/A C:\Windows\explorer.exe C:\Windows\System32\WScript.exe
PID 2692 wrote to memory of 2740 N/A C:\Windows\explorer.exe C:\Windows\System32\WScript.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\5df57a9c8b00ce154f96d692a10f74b3ca3827a62f598c1b502e0a58222c83bf.xls"

C:\Windows\explorer.exe

explorer.exe C:\Users\Public\Documents\O53rO16r.vbs

C:\Windows\explorer.exe

C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\O53rO16r.vbs"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
US 8.8.8.8:53 240.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 94.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 syracuse.best udp
NL 52.109.89.19:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 19.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 41.173.79.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/3120-3-0x00007FFCA82F0000-0x00007FFCA8300000-memory.dmp

memory/3120-0-0x00007FFCA82F0000-0x00007FFCA8300000-memory.dmp

memory/3120-1-0x00007FFCE830D000-0x00007FFCE830E000-memory.dmp

memory/3120-2-0x00007FFCA82F0000-0x00007FFCA8300000-memory.dmp

memory/3120-6-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-7-0x00007FFCA82F0000-0x00007FFCA8300000-memory.dmp

memory/3120-8-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-5-0x00007FFCA82F0000-0x00007FFCA8300000-memory.dmp

memory/3120-10-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-9-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-11-0x00007FFCA6070000-0x00007FFCA6080000-memory.dmp

memory/3120-12-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-4-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-14-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-15-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-13-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-19-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-18-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-20-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-17-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-16-0x00007FFCA6070000-0x00007FFCA6080000-memory.dmp

C:\Users\Public\Documents\O53rO16r.vbs

MD5 b5cd0305f7202c466cf23cbd5ead1b72
SHA1 393359f3c8d1b7c6ae7cf3d8a7bf230fca6b41c8
SHA256 ab3b76b533f1f052fffface021efb869e02fb7c0cd0e7aff997aeae35ea58e8a
SHA512 3dcbe96b86a3f6f59970f437b41606aa67df995c7daa212658855fd289eb522ab97f111d34cec2f0e25e2e0153da3a06515e9a3d124a26c09cd183f913514fb9

memory/3120-32-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

memory/3120-33-0x00007FFCE830D000-0x00007FFCE830E000-memory.dmp

memory/3120-34-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp