Malware Analysis Report

2025-01-22 16:10

Sample ID 241111-v8zcaawkgp
Target d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec
SHA256 d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec
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

d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec

Threat Level: Known bad

The file d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec 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 behavior: AddClipboardFormatListener

Checks processor information in registry

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 17:40

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 17:40

Reported

2024-11-11 17:42

Platform

win7-20241010-en

Max time kernel

61s

Max time network

133s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec.xlsm

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\regsvr32.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\regsvr32.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\d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec.xlsm

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.ajaxmatters.com udp
US 104.21.28.230:80 www.ajaxmatters.com tcp
US 104.21.28.230:443 www.ajaxmatters.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.227:80 c.pki.goog tcp

Files

memory/2116-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2116-1-0x0000000072C3D000-0x0000000072C48000-memory.dmp

C:\Users\Admin\rfs.dll

MD5 4ed8ca5542b641fddd200acebadf4e3c
SHA1 41fd7fb6cb84805fbc229cbf13620f80a5008003
SHA256 3f03ee986c82c3be72da6272448f92d97426f53e07079334edeb502f6386cc33
SHA512 866719609b7200cdd4d97b6a83d7fb6424d3900b555e23d2db8744539b1ae204c0da0a5e595c676ee4cad7df3f743aad1e746c750cd30afe3a74d89bf188979a

memory/2116-26-0x0000000072C3D000-0x0000000072C48000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 17:40

Reported

2024-11-11 17:42

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

144s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec.xlsm"

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\SysWow64\regsvr32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWow64\regsvr32.exe N/A

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 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

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\d3592e74ae6782a68ae77bddb4829989f92508f3c098614c14e2ac5ef0588bec.xlsm"

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 70.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 18.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.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 www.ajaxmatters.com udp
US 104.21.28.230:80 www.ajaxmatters.com tcp
US 104.21.28.230:443 www.ajaxmatters.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 172.217.16.227:80 c.pki.goog tcp
US 8.8.8.8:53 7.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 230.28.21.104.in-addr.arpa udp
US 8.8.8.8:53 227.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 253.15.104.51.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 105.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/1080-2-0x00007FF7ED410000-0x00007FF7ED420000-memory.dmp

memory/1080-3-0x00007FF82D42D000-0x00007FF82D42E000-memory.dmp

memory/1080-0-0x00007FF7ED410000-0x00007FF7ED420000-memory.dmp

memory/1080-5-0x00007FF7ED410000-0x00007FF7ED420000-memory.dmp

memory/1080-4-0x00007FF7ED410000-0x00007FF7ED420000-memory.dmp

memory/1080-7-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-6-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-1-0x00007FF7ED410000-0x00007FF7ED420000-memory.dmp

memory/1080-11-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-14-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-13-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-12-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-16-0x00007FF7EACA0000-0x00007FF7EACB0000-memory.dmp

memory/1080-15-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-10-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-17-0x00007FF7EACA0000-0x00007FF7EACB0000-memory.dmp

memory/1080-18-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-9-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

memory/1080-8-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

C:\Users\Admin\rfs.dll

MD5 4ed8ca5542b641fddd200acebadf4e3c
SHA1 41fd7fb6cb84805fbc229cbf13620f80a5008003
SHA256 3f03ee986c82c3be72da6272448f92d97426f53e07079334edeb502f6386cc33
SHA512 866719609b7200cdd4d97b6a83d7fb6424d3900b555e23d2db8744539b1ae204c0da0a5e595c676ee4cad7df3f743aad1e746c750cd30afe3a74d89bf188979a

memory/1080-40-0x00007FF82D390000-0x00007FF82D585000-memory.dmp

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

MD5 278d74fd4289d085cfbe359a67ebd845
SHA1 3612c2032b54d673fb4e3da53c995877b6dcc001
SHA256 cf27b74b6c6f59422bdaf1cdf4cd261aee875188e45b1bd1c8ec46726d944061
SHA512 f25522b830ec4681b8fb83d353f7b953cb638c3e022980fcef9f85be1665ffe5594e3c9e98794b9ff9ad4f95c010800bc65949c2ddbdbb82a55a1c0ede75917c