Malware Analysis Report

2025-03-15 07:24

Sample ID 241111-z74mtsxaln
Target cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1
SHA256 cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1
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

cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1

Threat Level: Known bad

The file cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1 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

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 21:22

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 21:22

Reported

2024-11-11 21:25

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1.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\cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1.xlsm

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\wn.ocx

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.ajaxmatters.com udp
US 172.67.147.196:80 www.ajaxmatters.com tcp
US 172.67.147.196:443 www.ajaxmatters.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.227:80 c.pki.goog tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.22:80 crl.microsoft.com tcp

Files

memory/328-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/328-1-0x000000007241D000-0x0000000072428000-memory.dmp

C:\Users\Admin\wn.ocx

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

memory/328-22-0x000000007241D000-0x0000000072428000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 21:22

Reported

2024-11-11 21:25

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1.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\cfc2c5f40f2ad3a8addba93382052819f574cfd172d2f38f5e5deeb3e964bdf1.xlsm"

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\wn.ocx

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
IE 52.109.76.243:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 www.ajaxmatters.com udp
US 172.67.147.196:80 www.ajaxmatters.com tcp
US 172.67.147.196:443 www.ajaxmatters.com tcp
US 8.8.8.8:53 c.pki.goog udp
US 8.8.8.8:53 46.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 243.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.147.67.172.in-addr.arpa udp
GB 142.250.187.227:80 c.pki.goog tcp
US 8.8.8.8:53 227.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 28.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.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 8.8.8.8:53 106.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/4568-0-0x00007FFBA05ED000-0x00007FFBA05EE000-memory.dmp

memory/4568-1-0x00007FFB605D0000-0x00007FFB605E0000-memory.dmp

memory/4568-3-0x00007FFB605D0000-0x00007FFB605E0000-memory.dmp

memory/4568-2-0x00007FFB605D0000-0x00007FFB605E0000-memory.dmp

memory/4568-5-0x00007FFB605D0000-0x00007FFB605E0000-memory.dmp

memory/4568-7-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-4-0x00007FFB605D0000-0x00007FFB605E0000-memory.dmp

memory/4568-8-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-10-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-13-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-15-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-16-0x00007FFB5DC70000-0x00007FFB5DC80000-memory.dmp

memory/4568-14-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-12-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-17-0x00007FFB5DC70000-0x00007FFB5DC80000-memory.dmp

memory/4568-11-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-9-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-6-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

C:\Users\Admin\wn.ocx

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

memory/4568-39-0x00007FFBA05ED000-0x00007FFBA05EE000-memory.dmp

memory/4568-40-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

memory/4568-41-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

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

MD5 2516a9c034bf2b8bbe7d48e24f63055d
SHA1 d44fd4936509bce3507a625db786129c29e36014
SHA256 5365cf1491f12e3b58ce357e6ee0d46c60c7d2e58d64ad9286ea3219a9aab64c
SHA512 88142f177d1c71b6c1c5c550627b67bb279d6d3f917530247ce9b9bdff32a1bd7840c0dd949a9b17b39da23a65725e84a44ec5a6fb67e30bc9ce5525ac73ee44