Malware Analysis Report

2025-03-15 07:25

Sample ID 241111-y3st4aynbm
Target e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473
SHA256 e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473
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

e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473

Threat Level: Known bad

The file e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473 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

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 20:19

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 20:19

Reported

2024-11-11 20:21

Platform

win7-20240903-en

Max time kernel

138s

Max time network

140s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473.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 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 2872 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3032 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 3044 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\regsvr32.exe
PID 2008 wrote to memory of 928 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\e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473.xls

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya1.ocx

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya2.ocx

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya3.ocx

C:\Windows\SysWOW64\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya4.ocx

Network

Country Destination Domain Proto
US 8.8.8.8:53 educacionsanvicentefundacion.com udp
US 107.190.142.194:443 educacionsanvicentefundacion.com tcp
US 8.8.8.8:53 www.4monkeys.com udp
US 205.196.223.161:443 www.4monkeys.com tcp
US 8.8.8.8:53 haircutbar.com udp
US 15.204.147.173:80 haircutbar.com tcp
US 8.8.8.8:53 gedebey-tvradio.info udp
GB 31.22.4.240:80 gedebey-tvradio.info tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.22:80 crl.microsoft.com tcp

Files

memory/2008-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2008-1-0x000000007275D000-0x0000000072768000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\CabF431.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\TarF463.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/2008-55-0x000000007275D000-0x0000000072768000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 20:19

Reported

2024-11-11 20:21

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

137s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473.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 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\e3c73a6d07506bee3bfaabefddf0c26134c7daf7e34dedeca07c952695e92473.xls"

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya1.ocx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya2.ocx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya3.ocx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\uoya4.ocx

Network

Country Destination Domain Proto
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
FR 52.109.68.129:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 educacionsanvicentefundacion.com udp
US 107.190.142.194:443 educacionsanvicentefundacion.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 129.68.109.52.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 194.142.190.107.in-addr.arpa udp
US 8.8.8.8:53 www.4monkeys.com udp
US 205.196.223.161:443 www.4monkeys.com tcp
US 8.8.8.8:53 233.38.18.104.in-addr.arpa udp
US 8.8.8.8:53 161.223.196.205.in-addr.arpa udp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
US 8.8.8.8:53 haircutbar.com udp
US 15.204.147.173:80 haircutbar.com tcp
US 8.8.8.8:53 gedebey-tvradio.info udp
GB 31.22.4.240:80 gedebey-tvradio.info tcp
US 8.8.8.8:53 173.147.204.15.in-addr.arpa udp
US 8.8.8.8:53 3.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/1452-0-0x00007FFD14790000-0x00007FFD147A0000-memory.dmp

memory/1452-1-0x00007FFD547AD000-0x00007FFD547AE000-memory.dmp

memory/1452-4-0x00007FFD14790000-0x00007FFD147A0000-memory.dmp

memory/1452-3-0x00007FFD14790000-0x00007FFD147A0000-memory.dmp

memory/1452-2-0x00007FFD14790000-0x00007FFD147A0000-memory.dmp

memory/1452-7-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-10-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-11-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-13-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-12-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-14-0x00007FFD11E30000-0x00007FFD11E40000-memory.dmp

memory/1452-9-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-15-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-18-0x00007FFD11E30000-0x00007FFD11E40000-memory.dmp

memory/1452-17-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-16-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-8-0x00007FFD14790000-0x00007FFD147A0000-memory.dmp

memory/1452-5-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-6-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-37-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-38-0x00007FFD547AD000-0x00007FFD547AE000-memory.dmp

memory/1452-39-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

memory/1452-40-0x00007FFD54710000-0x00007FFD54905000-memory.dmp

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

MD5 87392e9c3268bed17106e41d944044c6
SHA1 9d214e30f62c442f0971983fc68fa6963c9cea62
SHA256 bad2af984a71bb28e387d099e0a1c2f03591a8983b99385e5961c4fe5337d8c8
SHA512 3de404eb339e56b2999ba8abdf9d4620b6b6234ce6853fa3b9ac9b13e69ecdfea0787944222535180791b1a24994dfc59398bb1862f93aad1143bdf99e691907