Malware Analysis Report

2025-04-13 11:50

Sample ID 220119-q8dclaadf3
Target 56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350
SHA256 56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350
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

56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350

Threat Level: Known bad

The file 56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350 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

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-01-19 13:55

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-01-19 13:55

Reported

2022-01-19 13:58

Platform

win10-en-20211208

Max time kernel

129s

Max time network

153s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350.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
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 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 3596 wrote to memory of 2112 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\rundll32.exe
PID 3596 wrote to memory of 2112 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\56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350.xll"

C:\Windows\SYSTEM32\rundll32.exe

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

Network

Country Destination Domain Proto
US 52.109.8.19:443 tcp
US 52.109.8.19:443 tcp
UA 91.201.202.219:443 tcp
NL 194.147.115.132:443 tcp
UA 194.38.20.30:443 194.38.20.30 tcp
RU 188.127.251.106:443 tcp

Files

memory/3596-115-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-116-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-117-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-118-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-119-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-128-0x00007FF978E10000-0x00007FF978E20000-memory.dmp

memory/3596-129-0x00007FF978E10000-0x00007FF978E20000-memory.dmp

\Users\Admin\AppData\Local\Temp\56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350.xll

MD5 f198da6e1ffc5c8e76e126412f6a0fe8
SHA1 e3f2a10f79f2b07e2a80c5d218e15cc1ae3b9a8e
SHA256 56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350
SHA512 e72f270c1b75748fc04201bb774eec09fdf6113f6e41f83a4a0dba55e253fd50a7579fae8ed38eb01fd1072980455373d1fb2413d4e84449b22d569e1fe991e5

\Users\Admin\AppData\Local\Temp\56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350.xll

MD5 f198da6e1ffc5c8e76e126412f6a0fe8
SHA1 e3f2a10f79f2b07e2a80c5d218e15cc1ae3b9a8e
SHA256 56d8a969497fe0cf90aa6e71c8f7c1a2e76b621d0b18876db8e3ca198a7b4350
SHA512 e72f270c1b75748fc04201bb774eec09fdf6113f6e41f83a4a0dba55e253fd50a7579fae8ed38eb01fd1072980455373d1fb2413d4e84449b22d569e1fe991e5

C:\Users\Admin\JavaObjectReflectG.dll

MD5 cc4209b9713dd9ba7418035c0d7b2fb7
SHA1 170719c68d52aa5ae561bda8801ecd44ca9ea797
SHA256 707d05f7e3bff16e3e8e6b8de3226207cd8cba02fbd42e635b3569548826e309
SHA512 6e2108494c55185148b82bcdad309144166baf6a639d4dc87c8bcf3d9aa96ae7c29d59224978fbe25af214d1f3e86829f81ed928dae237a62789d3f2af04f2e4

\Users\Admin\JavaObjectReflectG.dll

MD5 cc4209b9713dd9ba7418035c0d7b2fb7
SHA1 170719c68d52aa5ae561bda8801ecd44ca9ea797
SHA256 707d05f7e3bff16e3e8e6b8de3226207cd8cba02fbd42e635b3569548826e309
SHA512 6e2108494c55185148b82bcdad309144166baf6a639d4dc87c8bcf3d9aa96ae7c29d59224978fbe25af214d1f3e86829f81ed928dae237a62789d3f2af04f2e4

memory/2112-263-0x0000000180000000-0x000000018003C000-memory.dmp

memory/3596-301-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-302-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-303-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

memory/3596-304-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp