Malware Analysis Report

2024-10-19 08:15

Sample ID 240831-drp9lssgrr
Target 872515d22463579a76689be0f034cc12a3627a83177c4d5a6f9ef622647983ba
SHA256 872515d22463579a76689be0f034cc12a3627a83177c4d5a6f9ef622647983ba
Tags
expiro backdoor discovery
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

872515d22463579a76689be0f034cc12a3627a83177c4d5a6f9ef622647983ba

Threat Level: Known bad

The file 872515d22463579a76689be0f034cc12a3627a83177c4d5a6f9ef622647983ba was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

Expiro, m0yv

Expiro payload

System Location Discovery: System Language Discovery

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 03:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 03:14

Reported

2024-08-31 03:17

Platform

win7-20240708-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe"

Signatures

Expiro, m0yv

backdoor expiro

Expiro payload

backdoor
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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe

"C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe"

Network

N/A

Files

memory/2480-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/2480-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/2480-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/2480-3-0x0000000010000000-0x0000000010108000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 03:14

Reported

2024-08-31 03:17

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe"

Signatures

Expiro, m0yv

backdoor expiro

Expiro payload

backdoor
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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe

"C:\Users\Admin\AppData\Local\Temp\a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4080-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/4080-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/4080-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/4080-3-0x0000000010000000-0x0000000010108000-memory.dmp