Malware Analysis Report

2025-03-15 07:56

Sample ID 240806-15eflawdlf
Target 159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58
SHA256 159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58
Tags
macro macro_on_action discovery
score
8/10

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
8/10

SHA256

159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58

Threat Level: Likely malicious

The file 159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58 was found to be: Likely malicious.

Malicious Activity Summary

macro macro_on_action discovery

Office macro that triggers on suspicious action

Suspicious Office macro

System Location Discovery: System Language Discovery

Office loads VBA resources, possible macro or embedded object present

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-06 22:13

Signatures

Office macro that triggers on suspicious action

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

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 22:13

Reported

2024-08-06 22:14

Platform

win7-20240704-en

Max time kernel

24s

Max time network

16s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58.xls

Signatures

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

Office loads VBA resources, possible macro or embedded object present

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 FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
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\159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58.xls

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

Network

N/A

Files

memory/1864-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1864-1-0x00000000727CD000-0x00000000727D8000-memory.dmp

memory/1864-8-0x00000000076E0000-0x00000000077E0000-memory.dmp

memory/1864-9-0x00000000727CD000-0x00000000727D8000-memory.dmp

memory/1864-10-0x00000000076E0000-0x00000000077E0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 22:13

Reported

2024-08-06 22:14

Platform

win10v2004-20240802-en

Max time kernel

37s

Max time network

39s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58.xls"

Signatures

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3856 wrote to memory of 1636 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\splwow64.exe
PID 3856 wrote to memory of 1636 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\splwow64.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\159bbf20977f80289e54d468f1c240cfec079a6df6e279e024b3ff406a0acd58.xls"

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 93.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp

Files

memory/3856-0-0x00007FFCCE5D0000-0x00007FFCCE5E0000-memory.dmp

memory/3856-1-0x00007FFD0E5ED000-0x00007FFD0E5EE000-memory.dmp

memory/3856-2-0x00007FFCCE5D0000-0x00007FFCCE5E0000-memory.dmp

memory/3856-4-0x00007FFCCE5D0000-0x00007FFCCE5E0000-memory.dmp

memory/3856-5-0x00007FFCCE5D0000-0x00007FFCCE5E0000-memory.dmp

memory/3856-11-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-10-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-9-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-13-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-14-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-12-0x00007FFCCBC70000-0x00007FFCCBC80000-memory.dmp

memory/3856-15-0x00007FFCCBC70000-0x00007FFCCBC80000-memory.dmp

memory/3856-16-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-20-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-22-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-21-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-19-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-18-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-17-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-8-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-7-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-6-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-3-0x00007FFCCE5D0000-0x00007FFCCE5E0000-memory.dmp

memory/3856-38-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp

memory/3856-39-0x00007FFD0E5ED000-0x00007FFD0E5EE000-memory.dmp

memory/3856-40-0x00007FFD0E550000-0x00007FFD0E745000-memory.dmp