Malware Analysis Report

2024-10-23 17:37

Sample ID 231219-1lhnxadah2
Target aa5883c31754f3eeeb53daddf700ce15
SHA256 f52beed1ca842d704ac58e08a1e7daab0f528174fc37e56daf2ca3d76b8728e3
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

f52beed1ca842d704ac58e08a1e7daab0f528174fc37e56daf2ca3d76b8728e3

Threat Level: Known bad

The file aa5883c31754f3eeeb53daddf700ce15 was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Bazar/Team9 Loader payload

Blocklisted process makes network request

Tries to connect to .bazar domain

Unexpected DNS network traffic destination

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-19 21:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 21:44

Reported

2023-12-20 17:20

Platform

win7-20231215-en

Max time kernel

147s

Max time network

152s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa5883c31754f3eeeb53daddf700ce15.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\aa5883c31754f3eeeb53daddf700ce15.dll,#1

Network

Country Destination Domain Proto
DE 104.248.16.136:443 tcp
DE 104.248.16.136:443 tcp
DE 164.90.223.38:443 tcp
DE 164.90.223.38:443 tcp

Files

memory/1964-0-0x0000000000390000-0x00000000003BA000-memory.dmp

memory/1964-1-0x0000000000390000-0x00000000003BA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 21:44

Reported

2023-12-20 17:19

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa5883c31754f3eeeb53daddf700ce15.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

Tries to connect to .bazar domain

Description Indicator Process Target
N/A reddew28c.bazar N/A N/A
N/A bluehail.bazar N/A N/A
N/A blackrain15.bazar N/A N/A

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 134.195.4.2 N/A N/A
Destination IP 134.195.4.2 N/A N/A
Destination IP 134.195.4.2 N/A N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa5883c31754f3eeeb53daddf700ce15.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 207.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 57.110.18.2.in-addr.arpa udp
DE 104.248.16.136:443 tcp
DE 164.90.223.38:443 tcp
US 8.8.8.8:53 61.179.17.96.in-addr.arpa udp
DE 164.90.223.1:443 tcp
DE 164.90.223.13:443 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 134.195.4.2:53 blackrain15.bazar udp
PA 186.73.40.224:443 tcp
US 8.8.8.8:53 2.4.195.134.in-addr.arpa udp
US 134.195.4.2:53 reddew28c.bazar udp
PA 186.73.40.224:443 tcp
US 134.195.4.2:53 bluehail.bazar udp
PA 186.73.40.224:443 tcp
FR 2.18.110.57:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp

Files

memory/3420-0-0x00000245EE750000-0x00000245EE77A000-memory.dmp

memory/3420-1-0x00000245EE750000-0x00000245EE77A000-memory.dmp