Malware Analysis Report

2025-03-15 07:24

Sample ID 241111-1k1s4azrfk
Target a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941
SHA256 a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941
Tags
discovery macro xlm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941

Threat Level: Known bad

The file a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941 was found to be: Known bad.

Malicious Activity Summary

discovery macro xlm

Process spawned unexpected child process

Suspicious Office macro

System Location Discovery: System Language Discovery

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 21:43

Signatures

Suspicious Office macro

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 21:43

Reported

2024-11-11 21:45

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

139s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941.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\SysWow64\regsvr32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWow64\regsvr32.exe 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 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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS 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

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\a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941.xls"

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\txdn.dll

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 dlfreight.com udp
US 104.18.211.89:80 dlfreight.com tcp
US 104.18.211.89:443 dlfreight.com tcp
US 8.8.8.8:53 c.pki.goog udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 97.32.109.52.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 89.211.18.104.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
GB 142.250.187.227:80 c.pki.goog tcp
US 8.8.8.8:53 227.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 hadramout21.com udp
US 8.8.8.8:53 groupesther.com udp
US 8.8.8.8:53 datainline.com udp
AR 200.110.156.200:80 datainline.com tcp
US 8.8.8.8:53 greycoconut.com udp
IN 180.149.241.246:80 greycoconut.com tcp
US 8.8.8.8:53 www.greycoconut.com udp
IN 180.149.241.246:80 www.greycoconut.com tcp
US 8.8.8.8:53 200.156.110.200.in-addr.arpa udp
US 8.8.8.8:53 246.241.149.180.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 105.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/3916-0-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp

memory/3916-2-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp

memory/3916-4-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp

memory/3916-3-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp

memory/3916-1-0x00007FFAE70ED000-0x00007FFAE70EE000-memory.dmp

memory/3916-5-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

memory/3916-6-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp

memory/3916-9-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

memory/3916-8-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

memory/3916-7-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

memory/3916-10-0x00007FFAA4F20000-0x00007FFAA4F30000-memory.dmp

memory/3916-11-0x00007FFAA4F20000-0x00007FFAA4F30000-memory.dmp

C:\Users\Admin\txdn.dll

MD5 3b79e62476916ff33ddc0668a0898e6d
SHA1 fe4f73a8019a0407cec5e2eb0c344adc4ab73bae
SHA256 418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81
SHA512 3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa

memory/3916-33-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

memory/3916-34-0x00007FFAE70ED000-0x00007FFAE70EE000-memory.dmp

memory/3916-35-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

memory/3916-36-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp

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

MD5 89e2004d6bbb433f0ea146d1d1e19af8
SHA1 f7bb44608e7d47e741dd931df134b493c57edb6c
SHA256 80bf93f67bb0e0ce8d82fc3220a3ff3402c59347a7bd20d958ffc5f2e505fac2
SHA512 afd4e00ad2b8a0e54199ffe506aecf92caa43c9f900fff93b46b40229be73f6f209b881d4b3b8c5491f2edf413b5637d78a39108d7d9efcefe9bf5e4469f9786

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 21:43

Reported

2024-11-11 21:45

Platform

win7-20241010-en

Max time kernel

143s

Max time network

153s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941.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\regsvr32.exe C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

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\regsvr32.exe N/A

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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.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\a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941.xls

C:\Windows\SysWow64\regsvr32.exe

C:\Windows\SysWow64\regsvr32.exe -s ..\txdn.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 dlfreight.com udp
US 104.18.211.89:80 dlfreight.com tcp
US 104.18.211.89:443 dlfreight.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.227:80 c.pki.goog tcp
US 8.8.8.8:53 hadramout21.com udp
US 8.8.8.8:53 groupesther.com udp
US 8.8.8.8:53 datainline.com udp
AR 200.110.156.200:80 datainline.com tcp
US 8.8.8.8:53 greycoconut.com udp
IN 180.149.241.246:80 greycoconut.com tcp
US 8.8.8.8:53 www.greycoconut.com udp
IN 180.149.241.246:80 www.greycoconut.com tcp

Files

memory/1736-1-0x0000000072C3D000-0x0000000072C48000-memory.dmp

memory/1736-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

C:\Users\Admin\txdn.dll

MD5 3b79e62476916ff33ddc0668a0898e6d
SHA1 fe4f73a8019a0407cec5e2eb0c344adc4ab73bae
SHA256 418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81
SHA512 3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa

memory/1736-23-0x0000000072C3D000-0x0000000072C48000-memory.dmp