Malware Analysis Report

2025-01-22 16:12

Sample ID 241106-1t158a1lak
Target 8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4
SHA256 8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4
Tags
macro xlm discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4

Threat Level: Known bad

The file 8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4 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 WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-06 21:57

Signatures

Suspicious Office macro

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-06 21:57

Reported

2024-11-06 21:58

Platform

win10v2004-20241007-en

Max time kernel

46s

Max time network

35s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4.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
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
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
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
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\8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4.xls"

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx

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 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.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 app.clubdedocentes.com udp
US 108.167.141.132:80 app.clubdedocentes.com tcp
US 8.8.8.8:53 educareclubdedocentes.com udp
US 172.67.205.226:443 educareclubdedocentes.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.227:80 c.pki.goog tcp
US 8.8.8.8:53 243.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 132.141.167.108.in-addr.arpa udp
US 8.8.8.8:53 226.205.67.172.in-addr.arpa udp
US 8.8.8.8:53 227.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 linhkiendoc.com udp
US 3.33.251.168:80 linhkiendoc.com tcp
US 8.8.8.8:53 sourcecool.com udp
CN 101.42.229.123:80 sourcecool.com tcp
US 8.8.8.8:53 168.251.33.3.in-addr.arpa udp
US 8.8.8.8:53 201.64.52.20.in-addr.arpa udp
US 8.8.8.8:53 www.stickers-et-deco.com udp
US 172.67.220.221:80 www.stickers-et-deco.com tcp
US 8.8.8.8:53 221.220.67.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 69.190.18.2.in-addr.arpa udp

Files

memory/1028-1-0x00007FFF476CD000-0x00007FFF476CE000-memory.dmp

memory/1028-0-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp

memory/1028-2-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp

memory/1028-3-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp

memory/1028-4-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp

memory/1028-5-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp

memory/1028-6-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-8-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-7-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-11-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-13-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-12-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-14-0x00007FFF04DB0000-0x00007FFF04DC0000-memory.dmp

memory/1028-10-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-15-0x00007FFF04DB0000-0x00007FFF04DC0000-memory.dmp

memory/1028-16-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-9-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-35-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

memory/1028-36-0x00007FFF476CD000-0x00007FFF476CE000-memory.dmp

memory/1028-37-0x00007FFF47630000-0x00007FFF47825000-memory.dmp

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

MD5 42e95cc3f5a30a84f1f4bfdc5ea8ff8c
SHA1 25d89c2e6d72183a04e1b123ae0d9c5372c0f4e1
SHA256 da6136a425e38fe9e0fe0f16b9552ca8b92c8ecc1cb3929be6eda43c400cdb73
SHA512 1c6e9db593be69ef2c771f5849e4dfd91c0442aec428c15b81733d5fee45011b20683a7a176f88447ac42f8db73e4da6e2a89edef583118256a3e657a21b71bb

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-06 21:57

Reported

2024-11-06 21:58

Platform

win7-20240903-en

Max time kernel

34s

Max time network

33s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4.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
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
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
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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2608 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 2628 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2748 wrote to memory of 800 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe

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\8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4.xls

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx

Network

Country Destination Domain Proto
US 8.8.8.8:53 app.clubdedocentes.com udp
US 108.167.141.132:80 app.clubdedocentes.com tcp
US 8.8.8.8:53 educareclubdedocentes.com udp
US 172.67.205.226:443 educareclubdedocentes.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 linhkiendoc.com udp
US 3.33.251.168:80 linhkiendoc.com tcp
US 8.8.8.8:53 sourcecool.com udp
CN 101.42.229.123:80 sourcecool.com tcp
US 8.8.8.8:53 www.stickers-et-deco.com udp
US 104.21.24.221:80 www.stickers-et-deco.com tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

memory/2748-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2748-1-0x000000007256D000-0x0000000072578000-memory.dmp

memory/2748-18-0x000000007256D000-0x0000000072578000-memory.dmp