Malware Analysis Report

2024-10-19 02:59

Sample ID 231231-s9ps5ahegn
Target 3a5843a2520140837a943be5f430e6ba
SHA256 b731d646e47f25e2f0feac5f036427c6723b2a2a4d13163e58d73acc94251663
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

b731d646e47f25e2f0feac5f036427c6723b2a2a4d13163e58d73acc94251663

Threat Level: Known bad

The file 3a5843a2520140837a943be5f430e6ba 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 15:49

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 15:49

Reported

2024-01-05 22:24

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

115s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3a5843a2520140837a943be5f430e6ba.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\3a5843a2520140837a943be5f430e6ba.dll

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a5843a2520140837a943be5f430e6ba.dll,StartW {66D04570-FF63-46B5-8D96-C9322784A0B0}

Network

Country Destination Domain Proto
US 8.8.8.8:53 18.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 microsoft.com udp
NL 128.199.54.51:443 tcp
US 20.112.250.133:443 microsoft.com tcp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 133.250.112.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 20.54.110.119:443 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 208.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 50.134.221.88.in-addr.arpa udp
GB 96.17.178.208:80 tcp
GB 88.221.134.50:80 tcp
GB 104.91.71.140:80 tcp
GB 88.221.134.50:80 tcp
GB 104.91.71.140:80 tcp
GB 96.17.178.208:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 96.17.178.210:80 tcp
GB 96.17.178.210:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.50:80 tcp
US 8.8.8.8:53 udp
N/A 20.74.47.205:443 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
NL 128.199.54.51:443 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
US 8.8.8.8:53 udp
N/A 52.111.229.19:443 tcp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.50:80 tcp
GB 88.221.134.50:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 udp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
US 8.8.8.8:53 udp
N/A 20.223.35.26:443 tcp
N/A 20.223.35.26:443 tcp
N/A 20.223.35.26:443 tcp
GB 96.17.178.178:80 tcp
US 8.8.8.8:53 udp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
US 8.8.8.8:53 udp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
US 8.8.8.8:53 udp
N/A 93.184.221.240:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 96.17.178.178:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
US 8.8.8.8:53 udp
GB 88.221.135.217:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 udp
N/A 88.221.134.18:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 88.221.134.18:80 tcp
N/A 88.221.134.18:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
NL 128.199.54.51:443 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp
N/A 96.17.178.206:80 tcp

Files

memory/2220-0-0x0000000002540000-0x000000000261C000-memory.dmp

memory/3564-1-0x000002020D540000-0x000002020D61C000-memory.dmp

memory/3564-2-0x000002020D540000-0x000002020D61C000-memory.dmp

memory/2220-3-0x0000000002540000-0x000000000261C000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 15:49

Reported

2024-01-05 22:24

Platform

win7-20231129-en

Max time kernel

148s

Max time network

149s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3a5843a2520140837a943be5f430e6ba.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\3a5843a2520140837a943be5f430e6ba.dll

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a5843a2520140837a943be5f430e6ba.dll,StartW {86B6AF19-3872-4F2C-AC34-4B61CC5C7E4D}

Network

Country Destination Domain Proto
NL 128.199.54.51:443 tcp
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/2344-0-0x0000000001E90000-0x0000000001F6C000-memory.dmp

memory/2904-1-0x0000000001E00000-0x0000000001EDC000-memory.dmp

memory/2904-2-0x0000000001E00000-0x0000000001EDC000-memory.dmp

memory/2344-3-0x0000000001E90000-0x0000000001F6C000-memory.dmp