Malware Analysis Report

2025-01-22 16:06

Sample ID 241103-pgf4qsthln
Target 8b71b3ba72efcacf8a0e73cf40bc02c5_JaffaCakes118
SHA256 62618c9df7204189c63526127c040869a8780381c757958118014354a864fbdd
Tags
macro xlm defense_evasion 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

62618c9df7204189c63526127c040869a8780381c757958118014354a864fbdd

Threat Level: Known bad

The file 8b71b3ba72efcacf8a0e73cf40bc02c5_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

macro xlm defense_evasion discovery

Process spawned unexpected child process

Suspicious Office macro

Deletes itself

Indicator Removal: File Deletion

Process spawned suspicious child process

System Location Discovery: System Language Discovery

Office loads VBA resources, possible macro or embedded object present

NTFS ADS

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: RenamesItself

Suspicious use of SetWindowsHookEx

Enumerates system info in registry

Views/modifies file attributes

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 12:17

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-03 12:17

Reported

2024-11-03 12:20

Platform

win7-20240903-en

Max time kernel

120s

Max time network

125s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\8b71b3ba72efcacf8a0e73cf40bc02c5_JaffaCakes118.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

Deletes itself

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

Indicator Removal: File Deletion

defense_evasion

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\cmd.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\attrib.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

NTFS ADS

Description Indicator Process Target
File created C:\Users\Admin\AppData\Local\Temp\DE967F00\:Zone.Identifier:$DATA 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: RenamesItself

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 1740 wrote to memory of 2000 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2000 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2000 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2000 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2092 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2092 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2092 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2092 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2320 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2320 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2320 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1740 wrote to memory of 2320 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2000 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 2000 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 2000 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 2000 wrote to memory of 560 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\8b71b3ba72efcacf8a0e73cf40bc02c5_JaffaCakes118.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"

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 RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"

C:\Windows\SysWOW64\attrib.exe

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

Network

N/A

Files

memory/1740-1-0x00000000727ED000-0x00000000727F8000-memory.dmp

memory/1740-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1740-15-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-8-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-9-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-11-0x0000000006310000-0x0000000006410000-memory.dmp

memory/1740-26-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-12-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-13-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-10-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-30-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-29-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-28-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-27-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-31-0x0000000006310000-0x0000000006410000-memory.dmp

memory/1740-25-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-23-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-24-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-22-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-21-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-20-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-39-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-19-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-18-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-17-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-16-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-14-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-64-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-89-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-331-0x00000000727ED000-0x00000000727F8000-memory.dmp

memory/1740-332-0x0000000006310000-0x0000000006410000-memory.dmp

memory/1740-333-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-334-0x0000000000740000-0x0000000000840000-memory.dmp

memory/1740-335-0x0000000000740000-0x0000000000840000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-03 12:17

Reported

2024-11-03 12:20

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8b71b3ba72efcacf8a0e73cf40bc02c5_JaffaCakes118.xls"

Signatures

Process spawned suspicious 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:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\dwwin.exe N/A
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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\system32\dwwin.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\dwwin.exe N/A

Enumerates system info in registry

Description Indicator Process Target
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:\Windows\system32\dwwin.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\system32\dwwin.exe N/A
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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
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\8b71b3ba72efcacf8a0e73cf40bc02c5_JaffaCakes118.xls"

C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE

"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4884

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4884

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
FR 52.109.68.129:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 46.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 129.68.109.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/3600-0-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/3600-3-0x00007FFE41B6D000-0x00007FFE41B6E000-memory.dmp

memory/3600-2-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/3600-1-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/3600-4-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/3600-5-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/3600-6-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/3600-7-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/3600-8-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/3600-9-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/3600-10-0x00007FFDFF9B0000-0x00007FFDFF9C0000-memory.dmp

memory/3600-11-0x00007FFDFF9B0000-0x00007FFDFF9C0000-memory.dmp

memory/1608-30-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/1608-32-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/1608-39-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/1608-40-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/1608-41-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/1608-42-0x00007FFE01B50000-0x00007FFE01B60000-memory.dmp

memory/1608-43-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp

memory/3600-44-0x00007FFE41AD0000-0x00007FFE41CC5000-memory.dmp