Malware Analysis Report

2024-10-19 02:58

Sample ID 231231-aalcjsbgd3
Target 20e3b7d04d121321733b6eb698a09138
SHA256 33578b9c002760c65df50edee28db75dab43e5e55019852cd63d77e5c870c06f
Tags
bazarloader dropper loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

33578b9c002760c65df50edee28db75dab43e5e55019852cd63d77e5c870c06f

Threat Level: Known bad

The file 20e3b7d04d121321733b6eb698a09138 was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Bazar/Team9 Loader payload

Blocklisted process makes network request

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-31 00:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 00:00

Reported

2024-01-04 22:08

Platform

win7-20231215-en

Max time kernel

128s

Max time network

141s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\20e3b7d04d121321733b6eb698a09138.dll,#1

Signatures

Bazar Loader

loader dropper bazarloader

Bazar/Team9 Loader payload

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\20e3b7d04d121321733b6eb698a09138.dll,#1

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\20e3b7d04d121321733b6eb698a09138.dll,#1 2653628168

Network

Country Destination Domain Proto
US 8.8.8.8:53 microsoft.com udp
US 20.112.250.133:443 microsoft.com tcp
US 35.165.197.209:443 tcp
US 20.112.250.133:443 microsoft.com tcp
US 35.165.197.209:443 tcp
US 35.165.197.209:443 tcp
US 35.165.197.209:443 tcp

Files

memory/3000-0-0x0000000001B10000-0x0000000001B24000-memory.dmp

memory/2792-7-0x0000000000250000-0x0000000000264000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 00:00

Reported

2024-01-04 22:10

Platform

win10v2004-20231215-en

Max time kernel

143s

Max time network

155s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\20e3b7d04d121321733b6eb698a09138.dll,#1

Signatures

Bazar Loader

loader dropper bazarloader

Bazar/Team9 Loader payload

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\20e3b7d04d121321733b6eb698a09138.dll,#1

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\20e3b7d04d121321733b6eb698a09138.dll,#1 484613812

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 1.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 16.234.44.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 microsoft.com udp
US 35.165.197.209:443 tcp
US 20.112.250.133:443 microsoft.com tcp
US 8.8.8.8:53 133.250.112.20.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
PH 23.37.1.217:443 www.microsoft.com tcp
US 8.8.8.8:53 217.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 177.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 35.165.197.209:443 tcp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 64.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 169.117.168.52.in-addr.arpa udp

Files

memory/4980-0-0x00000153083D0000-0x00000153083E4000-memory.dmp

memory/1780-7-0x0000028FF5690000-0x0000028FF56A4000-memory.dmp