Malware Analysis Report

2025-01-22 16:06

Sample ID 241111-ty96cs1hkf
Target 43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a
SHA256 43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a
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

43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a

Threat Level: Known bad

The file 43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a 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 use of WriteProcessMemory

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 16:29

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 16:29

Reported

2024-11-11 16:31

Platform

win7-20240708-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a.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\43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a.xlsm

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe /s ..\sei.ocx

Network

Country Destination Domain Proto
US 8.8.8.8:53 gokcevizyon.com udp
US 8.8.8.8:53 henrysfreshroast.com udp
US 138.207.69.73:80 henrysfreshroast.com tcp
US 138.207.69.73:443 henrysfreshroast.com tcp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 2.23.210.75:80 r10.o.lencr.org tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.22:80 crl.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
US 23.192.22.93:80 www.microsoft.com tcp

Files

memory/2372-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2372-1-0x000000007259D000-0x00000000725A8000-memory.dmp

memory/2372-16-0x000000007259D000-0x00000000725A8000-memory.dmp

C:\Users\Admin\sei.ocx

MD5 2fc1c11a3c2295b3194b1bf83b86982c
SHA1 8ae7381b0af50a07310f7ffbecfa780f7740305f
SHA256 4ac4fc0780ce238c703abf6b7193462805ecaed4e36cdc2b74a89af0e260cd6c
SHA512 58d05cc0e6f3e767156e50a4e082d86799463cf2f8f09df4d0c5e213ffed9db5e912d5f911d58454d2211a8c7c5d65216477f7bdcd9156e1f54f4f52919bb0b8

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 16:29

Reported

2024-11-11 16:31

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

143s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a.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 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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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\43cb8070e79ae22d85e8cbe626e51967e7e8cce2a870877a2b0ce5332bcd107a.xlsm"

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe /s ..\sei.ocx

Network

Country Destination Domain Proto
US 8.8.8.8:53 roaming.officeapps.live.com udp
GB 52.109.28.47:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 gokcevizyon.com udp
US 8.8.8.8:53 henrysfreshroast.com udp
US 138.207.69.73:80 henrysfreshroast.com tcp
US 138.207.69.73:443 henrysfreshroast.com tcp
US 8.8.8.8:53 47.28.109.52.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 73.69.207.138.in-addr.arpa udp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 2.23.210.82:80 r10.o.lencr.org tcp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 82.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 72.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp

Files

memory/1160-2-0x00007FFBA3230000-0x00007FFBA3240000-memory.dmp

memory/1160-4-0x00007FFBE324D000-0x00007FFBE324E000-memory.dmp

memory/1160-3-0x00007FFBA3230000-0x00007FFBA3240000-memory.dmp

memory/1160-5-0x00007FFBA3230000-0x00007FFBA3240000-memory.dmp

memory/1160-1-0x00007FFBA3230000-0x00007FFBA3240000-memory.dmp

memory/1160-0-0x00007FFBA3230000-0x00007FFBA3240000-memory.dmp

memory/1160-11-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-10-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-9-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-8-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-7-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-6-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-12-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-14-0x00007FFBA1180000-0x00007FFBA1190000-memory.dmp

memory/1160-16-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-17-0x00007FFBA1180000-0x00007FFBA1190000-memory.dmp

memory/1160-15-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-13-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

memory/1160-38-0x00007FFBE31B0000-0x00007FFBE33A5000-memory.dmp

C:\Users\Admin\sei.ocx

MD5 2fc1c11a3c2295b3194b1bf83b86982c
SHA1 8ae7381b0af50a07310f7ffbecfa780f7740305f
SHA256 4ac4fc0780ce238c703abf6b7193462805ecaed4e36cdc2b74a89af0e260cd6c
SHA512 58d05cc0e6f3e767156e50a4e082d86799463cf2f8f09df4d0c5e213ffed9db5e912d5f911d58454d2211a8c7c5d65216477f7bdcd9156e1f54f4f52919bb0b8

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

MD5 48ba2b4409d6499f292689fa6d9e60a2
SHA1 29c7fbc5dde2d5d476deebdf8a0d1c2bb2e14b83
SHA256 010a6b641c2ffb41b54bdcb6cb95d7a8373eee6642e683847b52d6b3e423cb70
SHA512 4c4b1f3c81c495b9f57d49e01f5e40dd675c69d35e8cb66090013ee972c58531268b964c7d8aa4e6f1bed2e4ebdfcf239f6d97d23052df1beae245476f53f05b