Malware Analysis Report

2025-01-22 16:12

Sample ID 241104-hs3njswgpb
Target 8fca42088b1b3619ea9ca544fa0b8343_JaffaCakes118
SHA256 dfc9f64bf497bcb26f4e214258c0126ffaa79fef18215f13cefe9d08c0c131d5
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

dfc9f64bf497bcb26f4e214258c0126ffaa79fef18215f13cefe9d08c0c131d5

Threat Level: Known bad

The file 8fca42088b1b3619ea9ca544fa0b8343_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

System Location Discovery: System Language Discovery

Office loads VBA resources, possible macro or embedded object present

Suspicious use of WriteProcessMemory

Suspicious behavior: RenamesItself

NTFS ADS

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Views/modifies file attributes

Suspicious behavior: AddClipboardFormatListener

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-04 07:00

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 07:00

Reported

2024-11-04 09:22

Platform

win7-20240903-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\8fca42088b1b3619ea9ca544fa0b8343_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\AD867F00\: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 1640 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1568 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2148 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2148 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2148 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 2148 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1568 wrote to memory of 444 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 1568 wrote to memory of 444 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 1568 wrote to memory of 444 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 1568 wrote to memory of 444 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\8fca42088b1b3619ea9ca544fa0b8343_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/1640-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1640-1-0x0000000071DBD000-0x0000000071DC8000-memory.dmp

memory/1640-9-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-6-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-4-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-29-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-30-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-31-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-28-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-27-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-26-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-24-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-22-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-21-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-19-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-17-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-15-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-14-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-13-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-12-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-11-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-10-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-8-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-7-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-5-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-3-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-2-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-23-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-20-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-18-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-16-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-166-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-165-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-32-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-55-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-54-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-331-0x0000000071DBD000-0x0000000071DC8000-memory.dmp

memory/1640-332-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-333-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-334-0x0000000000750000-0x0000000000850000-memory.dmp

memory/1640-335-0x0000000000750000-0x0000000000850000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-04 07:00

Reported

2024-11-04 09:21

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

143s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8fca42088b1b3619ea9ca544fa0b8343_JaffaCakes118.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

Deletes itself

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Indicator Removal: File Deletion

defense_evasion

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

NTFS ADS

Description Indicator Process Target
File created C:\Users\Admin\AppData\Local\Temp\54A75E00\:Zone.Identifier:$DATA 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

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\8fca42088b1b3619ea9ca544fa0b8343_JaffaCakes118.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"

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 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"

Network

Country Destination Domain Proto
US 8.8.8.8:53 roaming.officeapps.live.com udp
FR 52.109.68.129:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 241.150.49.20.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 69.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.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 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 214.143.182.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4108-0-0x00007FFA179D0000-0x00007FFA179E0000-memory.dmp

memory/4108-1-0x00007FFA579ED000-0x00007FFA579EE000-memory.dmp

memory/4108-3-0x00007FFA179D0000-0x00007FFA179E0000-memory.dmp

memory/4108-2-0x00007FFA179D0000-0x00007FFA179E0000-memory.dmp

memory/4108-4-0x00007FFA179D0000-0x00007FFA179E0000-memory.dmp

memory/4108-5-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-6-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-7-0x00007FFA179D0000-0x00007FFA179E0000-memory.dmp

memory/4108-8-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-10-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-9-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-13-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-14-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-12-0x00007FFA15970000-0x00007FFA15980000-memory.dmp

memory/4108-15-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-16-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-11-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-17-0x00007FFA15970000-0x00007FFA15980000-memory.dmp

memory/4108-44-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-47-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-46-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-37-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-48-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-61-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-62-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-60-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-70-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\8fca42088b1b3619ea9ca544fa0b8343_JaffaCakes118.xls

MD5 964f301697f1c9e68c26f3122eb23e30
SHA1 57fd4c7484608e2fb862a618cda7930f4e4d8744
SHA256 768c7f93bc023bc08125271bcb53b8c119fff71ff6d4b1d94978684be333d713
SHA512 92ff9fcaa5de269e4edcb682b937d1256e55e3404f9b683b40cc9f7dd9f2fd36b925d16de494bed32978a3f320e5fdc07d0b76849144bbc73e4dddee80d07537

memory/4108-106-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-108-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-107-0x00007FFA579ED000-0x00007FFA579EE000-memory.dmp

memory/4108-109-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-110-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp

memory/4108-114-0x00007FFA57950000-0x00007FFA57B45000-memory.dmp