Malware Analysis Report

2025-03-15 07:24

Sample ID 241111-z8kw4szngl
Target 02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0
SHA256 02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0
Tags
discovery macro xlm
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

02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0

Threat Level: Known bad

The file 02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0 was found to be: Known bad.

Malicious Activity Summary

discovery macro xlm

Process spawned unexpected child process

Suspicious Office macro

System Location Discovery: System Language Discovery

Checks processor information in registry

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 21:23

Signatures

Suspicious Office macro

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 21:23

Reported

2024-11-11 21:25

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

143s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0.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\02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0.xlsm"

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 101.209.201.84.in-addr.arpa udp
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 henrysfreshroast.com udp
US 138.207.69.73:80 henrysfreshroast.com tcp
US 138.207.69.73:443 henrysfreshroast.com tcp
US 8.8.8.8:53 18.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 47.28.109.52.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 73.69.207.138.in-addr.arpa udp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 2.23.210.75:80 r10.o.lencr.org tcp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
US 8.8.8.8:53 75.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/224-0-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp

memory/224-1-0x00007FFA5B00D000-0x00007FFA5B00E000-memory.dmp

memory/224-4-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp

memory/224-3-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp

memory/224-2-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp

memory/224-8-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-9-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-7-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-11-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-12-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-13-0x00007FFA18690000-0x00007FFA186A0000-memory.dmp

memory/224-10-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-6-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-5-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp

memory/224-14-0x00007FFA18690000-0x00007FFA186A0000-memory.dmp

memory/224-15-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-16-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-20-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-19-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-22-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-21-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-18-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-17-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

C:\Users\Admin\rfs.dll

MD5 2fc1c11a3c2295b3194b1bf83b86982c
SHA1 8ae7381b0af50a07310f7ffbecfa780f7740305f
SHA256 4ac4fc0780ce238c703abf6b7193462805ecaed4e36cdc2b74a89af0e260cd6c
SHA512 58d05cc0e6f3e767156e50a4e082d86799463cf2f8f09df4d0c5e213ffed9db5e912d5f911d58454d2211a8c7c5d65216477f7bdcd9156e1f54f4f52919bb0b8

memory/224-44-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-45-0x00007FFA5B00D000-0x00007FFA5B00E000-memory.dmp

memory/224-46-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

memory/224-50-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

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

MD5 ae03a73f671d044237cc654810bf7469
SHA1 cd0ad254212e5371cb107c13df565defbfa37cf6
SHA256 d9f426956f3742eb648d724aa3265fcca19f625d7cdc33e5d8e809173431618a
SHA512 f0c29f10a61eb8ff9b3069a458235feb811f4d3dc3dcd654bff7dffff9cf2696faa7cb72425bc670003c658501cbea1a9c53539aeea392a840bbdddac68fded3

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 21:23

Reported

2024-11-11 21:25

Platform

win7-20240903-en

Max time kernel

117s

Max time network

128s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0.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\02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0.xlsm

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 henrysfreshroast.com udp
US 138.207.69.73:80 henrysfreshroast.com tcp
US 138.207.69.73:443 henrysfreshroast.com tcp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 2.23.210.75:80 r10.o.lencr.org tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

memory/2736-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2736-1-0x000000007201D000-0x0000000072028000-memory.dmp

memory/2736-20-0x000000007201D000-0x0000000072028000-memory.dmp

C:\Users\Admin\rfs.dll

MD5 2fc1c11a3c2295b3194b1bf83b86982c
SHA1 8ae7381b0af50a07310f7ffbecfa780f7740305f
SHA256 4ac4fc0780ce238c703abf6b7193462805ecaed4e36cdc2b74a89af0e260cd6c
SHA512 58d05cc0e6f3e767156e50a4e082d86799463cf2f8f09df4d0c5e213ffed9db5e912d5f911d58454d2211a8c7c5d65216477f7bdcd9156e1f54f4f52919bb0b8