Malware Analysis Report

2024-10-24 17:09

Sample ID 240904-12wkpsxdmk
Target c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b
SHA256 c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b
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

c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b

Threat Level: Known bad

The file c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b 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

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-04 22:09

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-04 22:09

Reported

2024-09-04 22:10

Platform

win7-20240729-en

Max time kernel

16s

Max time network

16s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b.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\c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b.xls

C:\Windows\SysWOW64\rundll32.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 markens.online udp
US 8.8.8.8:53 statedauto.com udp
US 34.202.219.172:443 statedauto.com tcp
US 54.208.224.251:443 statedauto.com tcp

Files

memory/2380-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2380-1-0x0000000072AFD000-0x0000000072B08000-memory.dmp

memory/2380-2-0x0000000072AFD000-0x0000000072B08000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-04 22:09

Reported

2024-09-04 22:10

Platform

win10v2004-20240802-en

Max time kernel

59s

Max time network

34s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b.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 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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_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 2404 wrote to memory of 2016 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\explorer.exe
PID 2404 wrote to memory of 2016 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\explorer.exe
PID 1292 wrote to memory of 4552 N/A C:\Windows\explorer.exe C:\Windows\System32\WScript.exe
PID 1292 wrote to memory of 4552 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\c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b.xls"

C:\Windows\explorer.exe

explorer.exe C:\Users\Public\Documents\NB127.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\NB127.vbs"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
GB 52.109.32.7:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 18.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 7.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 markens.online udp
US 8.8.8.8:53 175.117.168.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/2404-1-0x00007FFD9E1AD000-0x00007FFD9E1AE000-memory.dmp

memory/2404-0-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

memory/2404-3-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

memory/2404-2-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

memory/2404-10-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-4-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

memory/2404-9-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-12-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-11-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-13-0x00007FFD5BB50000-0x00007FFD5BB60000-memory.dmp

memory/2404-14-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-15-0x00007FFD5BB50000-0x00007FFD5BB60000-memory.dmp

memory/2404-8-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-18-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-17-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-20-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-21-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-23-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-22-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-19-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-16-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-7-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-6-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-5-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

C:\Users\Public\Documents\NB127.vbs

MD5 33808777eb2b9ed582ba7fdc79781e9c
SHA1 bdb5f3b64701de05ef0abfdf4632369d7ab81df4
SHA256 45d6efc5d51f8e67751f8e6c03eddb3dd6e1685691977d136d484fa146f679d0
SHA512 e8bd296488e5c2a3a2eccde2cdb71fea1da49aae5b679a992d70b69c9904cf5b2500408f9ef4bddc938a47cfac53a207b9a7248776d93882a04abd30e210940f

memory/2404-35-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-36-0x00007FFD9E1AD000-0x00007FFD9E1AE000-memory.dmp

memory/2404-37-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

memory/2404-41-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp