Malware Analysis Report

2025-04-13 11:50

Sample ID 220119-p26vwshhdk
Target d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f
SHA256 d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f
Tags
bazarloader dropper loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f

Threat Level: Known bad

The file d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Process spawned unexpected child process

Bazar/Team9 Loader payload

Loads dropped DLL

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Checks processor information in registry

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-01-19 12:50

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-01-19 12:50

Reported

2022-01-19 12:53

Platform

win10-en-20211208

Max time kernel

118s

Max time network

136s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f.xll"

Signatures

Bazar Loader

loader dropper bazarloader

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\rundll32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Bazar/Team9 Loader payload

Description Indicator Process Target
N/A N/A N/A N/A

Checks processor information in registry

Description Indicator Process Target
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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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

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 3996 wrote to memory of 4984 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\rundll32.exe
PID 3996 wrote to memory of 4984 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\rundll32.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\d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f.xll"

C:\Windows\SYSTEM32\rundll32.exe

rundll32 C:\Users\Admin\JavaObjectReflectiveP.dll , dopt

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp

Files

memory/3996-115-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-116-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-117-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-118-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-119-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-128-0x00007FFA94C50000-0x00007FFA94C60000-memory.dmp

memory/3996-129-0x00007FFA94C50000-0x00007FFA94C60000-memory.dmp

\Users\Admin\AppData\Local\Temp\d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f.xll

MD5 bd4953dbce803a724515c75235cd92c0
SHA1 2a5b7dc3122d036ce3d1afa22b2fc26c15841b11
SHA256 d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f
SHA512 9569783104c9ba89bc2b86f99f2b10a156f372c31f5b90300d89f192fdfb2b07ef2ada2fb3dfe3bc52fc31b3ef8bd3678431c4b9b5b5b0a87ec1ab30e352ca82

\Users\Admin\AppData\Local\Temp\d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f.xll

MD5 bd4953dbce803a724515c75235cd92c0
SHA1 2a5b7dc3122d036ce3d1afa22b2fc26c15841b11
SHA256 d3dbd89bf43c2ade8f0c590ab831f5a3b200bb5bf370a13450523ef9f094437f
SHA512 9569783104c9ba89bc2b86f99f2b10a156f372c31f5b90300d89f192fdfb2b07ef2ada2fb3dfe3bc52fc31b3ef8bd3678431c4b9b5b5b0a87ec1ab30e352ca82

C:\Users\Admin\JavaObjectReflectiveP.dll

MD5 f6453b96062899db68e9dc07bf1ec29c
SHA1 34e72fdc6558c69b46b4687ef966bce592620331
SHA256 6485eeae76c4c39b338c11061a5275879d0acdc97edecc45bfa551bcb7294e2a
SHA512 55f4d10507ecc035871b077aabbc6459bc43a08e45f99721c696dff895eda4c09f088b16d359d6ede8c1fcea465cc0fd3b7444312895014892be24ed9f1ab748

\Users\Admin\JavaObjectReflectiveP.dll

MD5 f6453b96062899db68e9dc07bf1ec29c
SHA1 34e72fdc6558c69b46b4687ef966bce592620331
SHA256 6485eeae76c4c39b338c11061a5275879d0acdc97edecc45bfa551bcb7294e2a
SHA512 55f4d10507ecc035871b077aabbc6459bc43a08e45f99721c696dff895eda4c09f088b16d359d6ede8c1fcea465cc0fd3b7444312895014892be24ed9f1ab748

memory/4984-263-0x0000000180000000-0x000000018003C000-memory.dmp

memory/3996-303-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-304-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-305-0x00007FFA98310000-0x00007FFA98320000-memory.dmp

memory/3996-306-0x00007FFA98310000-0x00007FFA98320000-memory.dmp