Malware Analysis Report

2024-10-23 20:58

Sample ID 240831-p9pxcavbqj
Target 1ddccfcf2a14b8dd1553585152ce568c.zip
SHA256 3510abbff8f9dfccd15cead77ff7ae11f9aff9fd1f1786e431d74804c21c7b0a
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

3510abbff8f9dfccd15cead77ff7ae11f9aff9fd1f1786e431d74804c21c7b0a

Threat Level: Known bad

The file 1ddccfcf2a14b8dd1553585152ce568c.zip was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

Expiro, m0yv

Expiro payload

Unsigned PE

System Location Discovery: System Language Discovery

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 13:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 13:01

Reported

2024-08-31 13:04

Platform

win7-20240704-en

Max time kernel

13s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.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\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.exe

"C:\Users\Admin\AppData\Local\Temp\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.exe"

Network

N/A

Files

memory/2936-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/2936-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/2936-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/2936-3-0x0000000010000000-0x0000000010108000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 13:01

Reported

2024-08-31 13:04

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.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\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.exe

"C:\Users\Admin\AppData\Local\Temp\89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/4260-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/4260-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/4260-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/4260-3-0x0000000010000000-0x0000000010108000-memory.dmp