Malware Analysis Report

2024-10-23 17:37

Sample ID 231225-bg5v7sffej
Target 1f45bcf1fb8b7ef74a57d19a371f41cf
SHA256 aee116011409a5bec7d356bd8f704df0a361fb029bf20178d49e02607798d9a1
Tags
bazarloader dropper loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

aee116011409a5bec7d356bd8f704df0a361fb029bf20178d49e02607798d9a1

Threat Level: Known bad

The file 1f45bcf1fb8b7ef74a57d19a371f41cf was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Bazar/Team9 Loader payload

Unsigned PE

Runs ping.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-25 01:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-25 01:07

Reported

2023-12-25 09:55

Platform

win7-20231215-en

Max time kernel

147s

Max time network

121s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.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
N/A N/A N/A N/A
N/A N/A N/A N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious behavior: CmdExeWriteProcessMemorySpam

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2988 wrote to memory of 1328 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\cmd.exe
PID 2988 wrote to memory of 1328 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\cmd.exe
PID 2988 wrote to memory of 1328 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\cmd.exe
PID 1328 wrote to memory of 3024 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE
PID 1328 wrote to memory of 3024 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE
PID 1328 wrote to memory of 3024 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE
PID 1328 wrote to memory of 2888 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 1328 wrote to memory of 2888 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 1328 wrote to memory of 2888 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 1328 wrote to memory of 2888 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 1328 wrote to memory of 2888 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll

C:\Windows\system32\cmd.exe

cmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll" mscp ahis & exit

C:\Windows\system32\PING.EXE

ping 127.0.0.1 -n 8

C:\Windows\system32\regsvr32.exe

"C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll" mscp ahis

Network

N/A

Files

memory/2988-0-0x0000000001F10000-0x0000000001F74000-memory.dmp

memory/2988-1-0x000007FEF6F10000-0x000007FEF70B2000-memory.dmp

memory/2988-9-0x000007FEF6F10000-0x000007FEF70B2000-memory.dmp

memory/2988-10-0x0000000001F10000-0x0000000001F74000-memory.dmp

memory/2888-11-0x0000000027480000-0x00000000274E4000-memory.dmp

memory/2888-12-0x000007FEF6C30000-0x000007FEF6DD2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-25 01:07

Reported

2023-12-25 09:55

Platform

win10v2004-20231215-en

Max time kernel

143s

Max time network

128s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.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
N/A N/A N/A N/A
N/A N/A N/A N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1824 wrote to memory of 3208 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\cmd.exe
PID 1824 wrote to memory of 3208 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\cmd.exe
PID 3208 wrote to memory of 2956 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE
PID 3208 wrote to memory of 2956 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE
PID 3208 wrote to memory of 216 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 3208 wrote to memory of 216 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll

C:\Windows\system32\PING.EXE

ping 127.0.0.1 -n 8

C:\Windows\system32\cmd.exe

cmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll" mscp ahis & exit

C:\Windows\system32\regsvr32.exe

"C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll" mscp ahis

Network

Country Destination Domain Proto
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 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 96.16.110.114:80 tcp
N/A 52.142.223.178:80 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 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 92.123.241.104:80 tcp
US 8.8.8.8:53 udp
N/A 92.123.241.104:80 tcp
GB 88.221.134.18:80 tcp
US 8.8.8.8:53 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 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.206:80 tcp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 96.17.178.180:80 tcp
N/A 96.17.178.180:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
N/A 20.223.35.26:443 tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
US 93.184.221.240:80 tcp
GB 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
US 93.184.221.240:80 tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 udp
GB 87.248.205.0:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
GB 87.248.205.0:80 tcp

Files

memory/1824-0-0x00000000276A0000-0x0000000027704000-memory.dmp

memory/1824-1-0x00007FFBF2800000-0x00007FFBF29A2000-memory.dmp

memory/1824-11-0x00000000276A0000-0x0000000027704000-memory.dmp

memory/1824-10-0x00007FFBF2800000-0x00007FFBF29A2000-memory.dmp

memory/216-12-0x0000000027C00000-0x0000000027C64000-memory.dmp

memory/216-13-0x00007FFBE4100000-0x00007FFBE42A2000-memory.dmp