Malware Analysis Report

2025-03-15 07:24

Sample ID 241111-1hcy9awmdz
Target 69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0
SHA256 69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0
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

69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0

Threat Level: Known bad

The file 69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0 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

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Checks processor information in registry

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 21:38

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 21:38

Reported

2024-11-11 21:41

Platform

win7-20240903-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0.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\69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0.xls

C:\Windows\SysWOW64\regsvr32.exe

regsvr32.exe ..\wnrul.ocx

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.escueladecinemza.com.ar udp
AR 179.43.117.122:443 www.escueladecinemza.com.ar tcp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 2.23.210.75:80 r10.o.lencr.org tcp
AR 179.43.117.122:80 www.escueladecinemza.com.ar tcp
AR 179.43.117.122:443 www.escueladecinemza.com.ar tcp
US 8.8.8.8:53 escueladecinemza.com.ar udp
AR 179.43.117.122:443 escueladecinemza.com.ar tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

memory/2772-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2772-1-0x000000007243D000-0x0000000072448000-memory.dmp

C:\Users\Admin\wnrul.ocx

MD5 3ffd9a2715e478a2442c309536507f93
SHA1 1d3a2db3cf0e80f972084f0d83adbf7f77578f75
SHA256 35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3
SHA512 311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9

memory/2772-23-0x000000007243D000-0x0000000072448000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 21:38

Reported

2024-11-11 21:41

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0.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\SYSTEM32\regsvr32.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 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3184 wrote to memory of 1004 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\regsvr32.exe
PID 3184 wrote to memory of 1004 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\regsvr32.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\69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0.xls"

C:\Windows\SYSTEM32\regsvr32.exe

regsvr32.exe ..\wnrul.ocx

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 roaming.officeapps.live.com udp
FR 52.109.68.129:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 www.escueladecinemza.com.ar udp
AR 179.43.117.122:443 www.escueladecinemza.com.ar tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 129.68.109.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.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 8.8.8.8:53 122.117.43.179.in-addr.arpa udp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
US 8.8.8.8:53 82.210.23.2.in-addr.arpa udp
AR 179.43.117.122:80 www.escueladecinemza.com.ar tcp
AR 179.43.117.122:443 www.escueladecinemza.com.ar tcp
US 8.8.8.8:53 escueladecinemza.com.ar udp
AR 179.43.117.122:443 escueladecinemza.com.ar tcp
US 8.8.8.8:53 63.141.182.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 27.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3184-0-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

memory/3184-1-0x00007FF8DCA8D000-0x00007FF8DCA8E000-memory.dmp

memory/3184-2-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

memory/3184-3-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

memory/3184-4-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

memory/3184-5-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

memory/3184-9-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-11-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-13-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-14-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-12-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-15-0x00007FF89A110000-0x00007FF89A120000-memory.dmp

memory/3184-10-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-16-0x00007FF89A110000-0x00007FF89A120000-memory.dmp

memory/3184-8-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-17-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-18-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-7-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-6-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-39-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

C:\Users\Admin\wnrul.ocx

MD5 3ffd9a2715e478a2442c309536507f93
SHA1 1d3a2db3cf0e80f972084f0d83adbf7f77578f75
SHA256 35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3
SHA512 311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9

memory/3184-41-0x00007FF8DCA8D000-0x00007FF8DCA8E000-memory.dmp

memory/3184-42-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

memory/3184-43-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

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

MD5 8881bfd671929f232599ceca354fb42e
SHA1 06198c6b2dc384ffbe3306d3b8330b449af598e7
SHA256 05eb76ac5263882b53501f842fe8648c5c03acaf9d4f59748e5ee9a49c3282f6
SHA512 a7ae906c2bca6d467153eb94ac540470f3a3075f1b1b897fe4acbede2e3e782a3c394de12ad2e9f7c92f0555fc72be1f6351367caf811ba6cf8712d01ab4e628