Malware Analysis Report

2025-03-15 07:22

Sample ID 241111-y2bjesymhj
Target 2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7
SHA256 2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7
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

2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7

Threat Level: Known bad

The file 2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7 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 FindShellTrayWindow

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 20:16

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 20:16

Reported

2024-11-11 20:18

Platform

win7-20240903-en

Max time kernel

121s

Max time network

121s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7.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\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\2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7.xls

C:\Windows\SysWow64\regsvr32.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 cornerstonecreativestudios.com udp
US 173.236.203.142:443 cornerstonecreativestudios.com tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

memory/540-1-0x00000000735DD000-0x00000000735E8000-memory.dmp

memory/540-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/540-12-0x00000000735DD000-0x00000000735E8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 20:16

Reported

2024-11-11 20:18

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7.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\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\2fa0d0daf8f303de979a9f61d53a474ca215007f131d472c2181dfcef84372b7.xls"

C:\Windows\SysWow64\regsvr32.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 105.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
NL 52.109.89.19:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 cornerstonecreativestudios.com udp
US 173.236.203.142:443 cornerstonecreativestudios.com tcp
US 8.8.8.8:53 19.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 142.203.236.173.in-addr.arpa udp
US 8.8.8.8:53 69.194.219.23.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/2388-2-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

memory/2388-3-0x00007FFDFCE2D000-0x00007FFDFCE2E000-memory.dmp

memory/2388-0-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

memory/2388-1-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

memory/2388-4-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

memory/2388-5-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

memory/2388-9-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-8-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-7-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-10-0x00007FFDBABF0000-0x00007FFDBAC00000-memory.dmp

memory/2388-6-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-11-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-12-0x00007FFDBABF0000-0x00007FFDBAC00000-memory.dmp

memory/2388-13-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-15-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-14-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-16-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-18-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-19-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-17-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

memory/2388-32-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp