Malware Analysis Report

2024-10-19 02:59

Sample ID 231231-decsracafl
Target 2552f71685c4bd3379ebc4f971bf26c6
SHA256 612f74d0a1f2f90a5a4ae11889755ea68656967cf0401e15d9c375ddcfb1d9e7
Tags
bazarloader dropper loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

612f74d0a1f2f90a5a4ae11889755ea68656967cf0401e15d9c375ddcfb1d9e7

Threat Level: Known bad

The file 2552f71685c4bd3379ebc4f971bf26c6 was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Bazar/Team9 Loader payload

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-31 02:54

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 02:54

Reported

2024-01-02 00:58

Platform

win10v2004-20231215-en

Max time kernel

147s

Max time network

158s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2552f71685c4bd3379ebc4f971bf26c6.dll

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2552f71685c4bd3379ebc4f971bf26c6.dll

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\2552f71685c4bd3379ebc4f971bf26c6.dll,StartW {98DD4FAF-3B68-46AA-B3AE-5B50D9E347E0}

Network

Country Destination Domain Proto
US 8.8.8.8:53 82.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 microsoft.com udp
NL 128.199.54.51:443 tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
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
US 92.123.241.137:443 www.microsoft.com tcp
US 8.8.8.8:53 137.241.123.92.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.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 8.8.8.8:53 241.154.82.20.in-addr.arpa 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 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
NL 128.199.54.51:443 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 42.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp
NL 128.199.54.51:443 tcp

Files

memory/2568-0-0x0000000001240000-0x0000000001254000-memory.dmp

memory/4812-1-0x000002565D4B0000-0x000002565D4C4000-memory.dmp

memory/4812-2-0x000002565D4B0000-0x000002565D4C4000-memory.dmp

memory/2568-3-0x0000000001240000-0x0000000001254000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 02:54

Reported

2024-01-02 00:58

Platform

win7-20231215-en

Max time kernel

118s

Max time network

122s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2552f71685c4bd3379ebc4f971bf26c6.dll

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2552f71685c4bd3379ebc4f971bf26c6.dll

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\2552f71685c4bd3379ebc4f971bf26c6.dll,StartW {38E120DF-E6A3-48BB-A600-BAB38D9DD3B2}

Network

Country Destination Domain Proto
US 8.8.8.8:53 microsoft.com udp
US 20.112.250.133:443 microsoft.com tcp
US 20.112.250.133:443 microsoft.com tcp
NL 128.199.54.51:443 tcp
NL 128.199.54.51:443 tcp
NL 128.199.54.51:443 tcp
NL 128.199.54.51:443 tcp

Files

memory/3064-0-0x00000000005A0000-0x00000000005B4000-memory.dmp

memory/2132-1-0x0000000000100000-0x0000000000114000-memory.dmp

memory/2132-2-0x0000000000100000-0x0000000000114000-memory.dmp

memory/3064-3-0x00000000005A0000-0x00000000005B4000-memory.dmp