Malware Analysis Report

2025-04-13 11:50

Sample ID 220119-lcjghsgfa8
Target 9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138
SHA256 9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138
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

9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138

Threat Level: Known bad

The file 9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138 was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Process spawned unexpected child process

Bazar/Team9 Loader payload

Blocklisted process makes network request

Loads dropped DLL

Enumerates system info in registry

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-01-19 09:23

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-01-19 09:23

Reported

2022-01-19 09:25

Platform

win10-en-20211208

Max time kernel

131s

Max time network

142s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138.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

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\rundll32.exe N/A
N/A N/A C:\Windows\SYSTEM32\rundll32.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\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 684 wrote to memory of 2028 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\rundll32.exe
PID 684 wrote to memory of 2028 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\9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138.xll"

C:\Windows\SYSTEM32\rundll32.exe

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

Network

Country Destination Domain Proto
US 52.109.8.21:443 tcp
US 52.109.8.21:443 tcp
UA 91.201.202.219:443 tcp
NL 194.147.115.132:443 tcp

Files

memory/684-115-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-116-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-117-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-118-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-121-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-128-0x00007FFCAD840000-0x00007FFCAD850000-memory.dmp

memory/684-129-0x00007FFCAD840000-0x00007FFCAD850000-memory.dmp

\Users\Admin\AppData\Local\Temp\9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138.xll

MD5 13bc88ede0b07077de8c91f1d552939b
SHA1 f517a3933b6aaffe605b8a625c34eeff2ac53cb9
SHA256 9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138
SHA512 1814fd33d280e20c5f53e19de0ace86c4e98abf785ef351837458f0b4660bdae3c377bb6a5eda8881fd0ea8b0bde28ed98a319839e747f118422bfda9de2662e

\Users\Admin\AppData\Local\Temp\9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138.xll

MD5 13bc88ede0b07077de8c91f1d552939b
SHA1 f517a3933b6aaffe605b8a625c34eeff2ac53cb9
SHA256 9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138
SHA512 1814fd33d280e20c5f53e19de0ace86c4e98abf785ef351837458f0b4660bdae3c377bb6a5eda8881fd0ea8b0bde28ed98a319839e747f118422bfda9de2662e

C:\Users\Admin\JavaObjectReflectY.dll

MD5 7367c0c6a7ec3a6b2dbeddf7f163f953
SHA1 af7361a8955aee907c960c22b3d5229f424cf3e2
SHA256 301f3f5edb4d5c56934eaa6b3a2bf30747919e549e3a7234c9e04032a9fed3b8
SHA512 960b9686423b9cf40a061c3dcbb4c14179f81d38f3ae336b0f6fa3bd4c917f96780d1470825c458898df485f27d23267c344c279938b516c9225e7e8c98e352d

\Users\Admin\JavaObjectReflectY.dll

MD5 7367c0c6a7ec3a6b2dbeddf7f163f953
SHA1 af7361a8955aee907c960c22b3d5229f424cf3e2
SHA256 301f3f5edb4d5c56934eaa6b3a2bf30747919e549e3a7234c9e04032a9fed3b8
SHA512 960b9686423b9cf40a061c3dcbb4c14179f81d38f3ae336b0f6fa3bd4c917f96780d1470825c458898df485f27d23267c344c279938b516c9225e7e8c98e352d

memory/2028-269-0x0000000180000000-0x000000018003C000-memory.dmp

memory/684-289-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-290-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-291-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

memory/684-292-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp