Malware Analysis Report

2025-01-22 16:12

Sample ID 241103-txnwqsycma
Target 8c65fb9924fea40f960bc14e30c5352c_JaffaCakes118
SHA256 617cbf3ea014d325e079e91a698c414262d68cfb02481ed797220db951a4e8d8
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

617cbf3ea014d325e079e91a698c414262d68cfb02481ed797220db951a4e8d8

Threat Level: Known bad

The file 8c65fb9924fea40f960bc14e30c5352c_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

NTFS ADS

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: RenamesItself

Suspicious use of SetWindowsHookEx

Views/modifies file attributes

Checks processor information in registry

Enumerates system info in registry

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 16:26

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 16:26

Reported

2024-11-03 16:29

Platform

win7-20240708-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\8c65fb9924fea40f960bc14e30c5352c_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\5BB67F00\: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 2100 wrote to memory of 908 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 908 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 908 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 908 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1536 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1536 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1536 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1536 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 2964 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 2964 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 2964 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 2964 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 908 wrote to memory of 2932 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 908 wrote to memory of 2932 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 908 wrote to memory of 2932 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\attrib.exe
PID 908 wrote to memory of 2932 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\8c65fb9924fea40f960bc14e30c5352c_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/2100-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2100-1-0x00000000728BD000-0x00000000728C8000-memory.dmp

memory/2100-8-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-24-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-23-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-22-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-21-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-20-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-19-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-18-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-16-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-15-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-14-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-13-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-12-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-11-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-9-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-10-0x0000000006320000-0x0000000006420000-memory.dmp

memory/2100-17-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-25-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-26-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-27-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-46-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-34-0x0000000006320000-0x0000000006420000-memory.dmp

memory/2100-30-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-29-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-28-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-161-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-71-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-331-0x00000000728BD000-0x00000000728C8000-memory.dmp

memory/2100-332-0x0000000006320000-0x0000000006420000-memory.dmp

memory/2100-333-0x0000000006320000-0x0000000006420000-memory.dmp

memory/2100-334-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-335-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2100-336-0x0000000000640000-0x0000000000740000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-03 16:26

Reported

2024-11-03 16:28

Platform

win10v2004-20241007-en

Max time kernel

143s

Max time network

145s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8c65fb9924fea40f960bc14e30c5352c_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 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:\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

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\6E875E00\: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\8c65fb9924fea40f960bc14e30c5352c_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 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
GB 52.109.28.47:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 47.28.109.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 74.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.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 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 198.111.78.13.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 102.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.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/316-0-0x00007FFCB7270000-0x00007FFCB7280000-memory.dmp

memory/316-2-0x00007FFCB7270000-0x00007FFCB7280000-memory.dmp

memory/316-3-0x00007FFCB7270000-0x00007FFCB7280000-memory.dmp

memory/316-1-0x00007FFCF728D000-0x00007FFCF728E000-memory.dmp

memory/316-7-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-6-0x00007FFCB7270000-0x00007FFCB7280000-memory.dmp

memory/316-10-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-8-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-9-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-5-0x00007FFCB7270000-0x00007FFCB7280000-memory.dmp

memory/316-4-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-11-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-13-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-14-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-15-0x00007FFCB4910000-0x00007FFCB4920000-memory.dmp

memory/316-12-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-16-0x00007FFCB4910000-0x00007FFCB4920000-memory.dmp

memory/316-20-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-19-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-18-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-17-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-40-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-62-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-63-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-64-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-61-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-60-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-54-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-51-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-76-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\8c65fb9924fea40f960bc14e30c5352c_JaffaCakes118.xls

MD5 44fd41001541b4731c46e3b73060561f
SHA1 e8c78dae3d1a2cce6bc078a4db6c7072c4e10fcf
SHA256 c0482f37b34dd2fa0840983229050f60d4ba06bae6d3a71691e9681ba798616f
SHA512 81ec31e4091077be61bd6593cd949459291bced23c61ae4caf065db00653e4f575b8c20f68c434c78655694b7e4ba96b075e47ddb8367ac1f2209994533d3ca0

memory/316-109-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-111-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-110-0x00007FFCF728D000-0x00007FFCF728E000-memory.dmp

memory/316-112-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-116-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-117-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

memory/316-118-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

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

MD5 d9024f8fb8d03bd403b6736ea57980dd
SHA1 15efd93f17efe899d0797bbc00e74dd0fa46190f
SHA256 b36c31a65baca602ed48f72d76a1988e8e5d8d0d86a140d260bf9938503e2989
SHA512 5449774b3641a05cd13061d9eabe9e8bf2d53cf1d0a39763ae129bcea0a7f0f558b684e03dbe1fa555395718b08a6047de5fc074ec0324656f405e0c1f012ba3