Malware Analysis Report

2024-10-24 17:09

Sample ID 240904-16cy6axdrl
Target cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef
SHA256 cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef
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

cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef

Threat Level: Known bad

The file cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef was found to be: Known bad.

Malicious Activity Summary

macro xlm discovery

Process spawned unexpected child process

Suspicious Office macro

Blocklisted process makes network request

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-04 22:15

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-04 22:15

Reported

2024-09-04 22:16

Platform

win7-20240903-en

Max time kernel

19s

Max time network

18s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.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\rundll32.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:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.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\cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\mTuI.txt,DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 statedauto.com udp
US 34.202.219.172:443 statedauto.com tcp
US 54.208.224.251:443 statedauto.com tcp
US 8.8.8.8:53 markens.online udp

Files

memory/1688-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1688-1-0x0000000071F4D000-0x0000000071F58000-memory.dmp

memory/1688-2-0x0000000071F4D000-0x0000000071F58000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-04 22:15

Reported

2024-09-04 22:16

Platform

win10v2004-20240802-en

Max time kernel

59s

Max time network

33s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.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\explorer.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\System32\WScript.exe N/A
N/A N/A C:\Windows\System32\WScript.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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings C:\Windows\explorer.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2096 wrote to memory of 4544 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\explorer.exe
PID 2096 wrote to memory of 4544 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\explorer.exe
PID 3064 wrote to memory of 1372 N/A C:\Windows\explorer.exe C:\Windows\System32\WScript.exe
PID 3064 wrote to memory of 1372 N/A C:\Windows\explorer.exe C:\Windows\System32\WScript.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\cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls"

C:\Windows\explorer.exe

explorer.exe C:\Users\Public\Documents\aMv.vbs

C:\Windows\explorer.exe

C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\aMv.vbs"

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 8.8.8.8:53 240.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 47.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 statedauto.com udp
US 54.208.224.251:443 statedauto.com tcp
US 34.202.219.172:443 statedauto.com tcp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/2096-3-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

memory/2096-4-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

memory/2096-2-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

memory/2096-1-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

memory/2096-0-0x00007FFBA5AAD000-0x00007FFBA5AAE000-memory.dmp

memory/2096-7-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

memory/2096-12-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-13-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-11-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-14-0x00007FFB633D0000-0x00007FFB633E0000-memory.dmp

memory/2096-16-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-15-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-18-0x00007FFB633D0000-0x00007FFB633E0000-memory.dmp

memory/2096-17-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-10-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-9-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-8-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-6-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-5-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

C:\Users\Public\Documents\aMv.vbs

MD5 e11baa18fd0e452d849b4018707feb84
SHA1 38c785ce317c8cd17adaf3d1a60cca5f59ffe596
SHA256 adffabbc135bd0726a3e7865b3d2312d063086e70e02c041991722a842e13578
SHA512 b1b0ba6a44c5d3eea035ece368d9fa612e35554b788381330302159d77d0b7da277b90d143445bfa7c115b7fa17e0b64942e1588a9665f4377e7be6bcdfaac2c

memory/2096-32-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

memory/2096-33-0x00007FFBA5AAD000-0x00007FFBA5AAE000-memory.dmp

memory/2096-34-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp