Malware Analysis Report

2025-01-22 16:12

Sample ID 241111-tx5jgszqbs
Target 774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115
SHA256 774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115
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

774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115

Threat Level: Known bad

The file 774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115 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

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 16:27

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 16:27

Reported

2024-11-11 16:29

Platform

win7-20241023-en

Max time kernel

121s

Max time network

131s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115.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\774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115.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 2.23.210.82:80 r10.o.lencr.org tcp

Files

memory/1888-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1888-1-0x00000000726DD000-0x00000000726E8000-memory.dmp

memory/1888-5-0x00000000726DD000-0x00000000726E8000-memory.dmp

C:\Users\Admin\rfs.dll

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 16:27

Reported

2024-11-11 16:29

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115.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 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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS 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\774d0fb74db191b25cdb9a8794f2ce93d85e23e43fa1a1cd4b313fc6866cc115.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 roaming.officeapps.live.com udp
GB 52.109.28.47:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
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
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 47.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 73.69.207.138.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
GB 2.23.210.82:80 r10.o.lencr.org tcp
US 8.8.8.8:53 82.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 208.143.182.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 74.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/4156-1-0x00007FFD53F8D000-0x00007FFD53F8E000-memory.dmp

memory/4156-0-0x00007FFD13F70000-0x00007FFD13F80000-memory.dmp

memory/4156-3-0x00007FFD13F70000-0x00007FFD13F80000-memory.dmp

memory/4156-2-0x00007FFD13F70000-0x00007FFD13F80000-memory.dmp

memory/4156-6-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-5-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-7-0x00007FFD13F70000-0x00007FFD13F80000-memory.dmp

memory/4156-10-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-9-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-11-0x00007FFD11610000-0x00007FFD11620000-memory.dmp

memory/4156-8-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-13-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-15-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-16-0x00007FFD11610000-0x00007FFD11620000-memory.dmp

memory/4156-14-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-12-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-4-0x00007FFD13F70000-0x00007FFD13F80000-memory.dmp

memory/4156-35-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

memory/4156-36-0x00007FFD53F8D000-0x00007FFD53F8E000-memory.dmp

memory/4156-37-0x00007FFD53EF0000-0x00007FFD540E5000-memory.dmp

C:\Users\Admin\rfs.dll

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