Malware Analysis Report

2025-03-15 07:01

Sample ID 231228-hce8bagabq
Target cc31c5d769e28c33b79dfb1c2b6cbea6
SHA256 48c8327b8fa0bd5e233a28148952aacad1180803bd004d344321eadc6c710479
Tags
macro xlm
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

48c8327b8fa0bd5e233a28148952aacad1180803bd004d344321eadc6c710479

Threat Level: Known bad

The file cc31c5d769e28c33b79dfb1c2b6cbea6 was found to be: Known bad.

Malicious Activity Summary

macro xlm

Process spawned unexpected child process

Suspicious Office macro

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Modifies Internet Explorer settings

Suspicious use of SetWindowsHookEx

Views/modifies file attributes

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-28 06:35

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-28 06:35

Reported

2024-01-02 15:28

Platform

win7-20231215-en

Max time kernel

102s

Max time network

120s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\cc31c5d769e28c33b79dfb1c2b6cbea6.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
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
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

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

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\MenuExt 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 behavior: GetForegroundWindowSpam

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2480 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 276 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1660 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1660 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1660 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1660 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2480 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 276 wrote to memory of 1868 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 276 wrote to memory of 1868 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 276 wrote to memory of 1868 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 276 wrote to memory of 1868 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe

Views/modifies file attributes

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\attrib.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\cc31c5d769e28c33b79dfb1c2b6cbea6.xls

C:\Windows\SysWOW64\attrib.exe

attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

Network

N/A

Files

memory/2480-1-0x000000007242D000-0x0000000072438000-memory.dmp

memory/2480-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2480-4-0x000000007242D000-0x0000000072438000-memory.dmp

memory/2480-6-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-5-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-9-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-17-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-29-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-35-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-34-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-57-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-33-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-32-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-83-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-107-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-31-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-30-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-28-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-130-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-149-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-177-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-203-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-248-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-228-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-274-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-301-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-321-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-27-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-26-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-25-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-24-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-23-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-22-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-21-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-20-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-19-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-18-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-16-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-15-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-14-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-13-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-12-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-11-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-10-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-8-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-7-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2480-355-0x000000007242D000-0x0000000072438000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-28 06:35

Reported

2024-01-02 15:28

Platform

win10v2004-20231215-en

Max time kernel

100s

Max time network

139s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cc31c5d769e28c33b79dfb1c2b6cbea6.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
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
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

Suspicious Office macro

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

Views/modifies file attributes

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\attrib.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\cc31c5d769e28c33b79dfb1c2b6cbea6.xls"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\system32\attrib.exe

attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
NL 20.73.194.208:443 tcp
US 20.42.65.89:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 57.110.18.2.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
GB 88.221.135.211:80 tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp

Files

memory/2544-3-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-8-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-9-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-11-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-15-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-17-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-19-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-20-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-18-0x00007FFBA06D0000-0x00007FFBA06E0000-memory.dmp

memory/2544-16-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-14-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-13-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-12-0x00007FFBA06D0000-0x00007FFBA06E0000-memory.dmp

memory/2544-10-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-7-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-6-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-4-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-5-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-2-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-0-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-1-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-36-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-37-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-50-0x0000023B17100000-0x0000023B180D0000-memory.dmp

memory/2544-60-0x0000023B17100000-0x0000023B180D0000-memory.dmp

memory/2544-64-0x0000023B17100000-0x0000023B180D0000-memory.dmp

memory/2544-67-0x0000023B11E20000-0x0000023B12620000-memory.dmp

memory/2544-71-0x0000023B11E20000-0x0000023B12620000-memory.dmp

memory/2544-76-0x0000023B11E20000-0x0000023B12620000-memory.dmp

memory/2544-74-0x0000023B11E20000-0x0000023B12620000-memory.dmp

memory/2544-89-0x0000023B11E20000-0x0000023B12620000-memory.dmp

memory/2544-80-0x0000023B17100000-0x0000023B180D0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\cc31c5d769e28c33b79dfb1c2b6cbea6.xls

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2544-70-0x0000023B11E20000-0x0000023B12620000-memory.dmp

memory/2544-141-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/2544-140-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-139-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-138-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

memory/2544-137-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp