Malware Analysis Report

2025-01-22 16:07

Sample ID 241103-w5gtha1fqq
Target 8ce48f220d79c4931477ba3003a92c31_JaffaCakes118
SHA256 ac73085476716c5273ac1b930a6a29461b51112a45431e9d34eb64c57947361b
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

ac73085476716c5273ac1b930a6a29461b51112a45431e9d34eb64c57947361b

Threat Level: Known bad

The file 8ce48f220d79c4931477ba3003a92c31_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 behavior: AddClipboardFormatListener

Suspicious behavior: RenamesItself

Views/modifies file attributes

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Enumerates system info in registry

NTFS ADS

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 18:30

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 18:30

Reported

2024-11-03 18:35

Platform

win7-20240708-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\8ce48f220d79c4931477ba3003a92c31_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\27B67F00\: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 1820 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1996 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1028 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1028 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1028 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1028 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1224 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1224 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1224 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1820 wrote to memory of 1224 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1996 wrote to memory of 780 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 1996 wrote to memory of 780 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 1996 wrote to memory of 780 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 1996 wrote to memory of 780 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\8ce48f220d79c4931477ba3003a92c31_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/1820-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1820-1-0x0000000071E4D000-0x0000000071E58000-memory.dmp

memory/1820-2-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-4-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-9-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-13-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-21-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-28-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-45-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-3-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-5-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-31-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-30-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-29-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-27-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-26-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-25-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-24-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-23-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-22-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-20-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-18-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-19-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-17-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-16-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-15-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-14-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-12-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-10-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-8-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-7-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-6-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-55-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-94-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-330-0x0000000071E4D000-0x0000000071E58000-memory.dmp

memory/1820-331-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-332-0x0000000000410000-0x0000000000510000-memory.dmp

memory/1820-333-0x0000000000410000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-03 18:30

Reported

2024-11-03 18:35

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8ce48f220d79c4931477ba3003a92c31_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\ED975E00\: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

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\8ce48f220d79c4931477ba3003a92c31_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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
NL 52.109.89.19:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 19.89.109.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.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 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 110.11.19.2.in-addr.arpa udp
US 8.8.8.8:53 89.16.208.104.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4644-5-0x00007FF980250000-0x00007FF980260000-memory.dmp

memory/4644-6-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-4-0x00007FF980250000-0x00007FF980260000-memory.dmp

memory/4644-3-0x00007FF980250000-0x00007FF980260000-memory.dmp

memory/4644-2-0x00007FF980250000-0x00007FF980260000-memory.dmp

memory/4644-1-0x00007FF9C026D000-0x00007FF9C026E000-memory.dmp

memory/4644-9-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-8-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-11-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-10-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-7-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-12-0x00007FF97DB00000-0x00007FF97DB10000-memory.dmp

memory/4644-13-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-14-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-16-0x00007FF97DB00000-0x00007FF97DB10000-memory.dmp

memory/4644-15-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-17-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-20-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-19-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-18-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-0-0x00007FF980250000-0x00007FF980260000-memory.dmp

memory/4644-50-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-58-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-48-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-57-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-42-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-70-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-72-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-71-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-91-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\8ce48f220d79c4931477ba3003a92c31_JaffaCakes118.xls

MD5 c37a4f41f3ad9b59456f16f3786ac3cd
SHA1 3b88de756818ef81fee872f816ad6e5dade95780
SHA256 2f602c8be8a74ed570e46ff5921b6397d7e6915e4bdb85f2b5c520433d618756
SHA512 7e14b7c3604876665cf72c0010cb4629202094e11cf223f88151da04ac9d0641d4f1175c235c9ffeb63e5fef3e70314bddd8c52d501cbb4e85caa0a357d56872

memory/4644-106-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-108-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-107-0x00007FF9C026D000-0x00007FF9C026E000-memory.dmp

memory/4644-112-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-113-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-114-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

memory/4644-118-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

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

MD5 aedbc0cf238ef18199a6cfb7701b40a2
SHA1 03c480ed02159446a80a11662bf8bb4a265b3f5e
SHA256 03ed0401343d5c20284942d47e5fb0280c83fdf4094d2bf1fba5c89c1c3025bf
SHA512 75ab5f86e31e459cc2dfcc23f7bd0c0a4eae203f994ad9334aab7576a9e8e7e87b3d776be54555b11da763ccb85fe7706c4e5444bce7262b7f21afc56c2e6e5e