Malware Analysis Report

2024-10-23 20:58

Sample ID 240903-ew3wyayanf
Target 7593cac1048b58bcf2261ff749c021e2.zip
SHA256 6f2df324fae653a2d55b7cc742ebf99c5e0226ec0b05884f4464e431ffa901f0
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

6f2df324fae653a2d55b7cc742ebf99c5e0226ec0b05884f4464e431ffa901f0

Threat Level: Known bad

The file 7593cac1048b58bcf2261ff749c021e2.zip 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

2024-09-03 04:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-03 04:18

Reported

2024-09-03 04:20

Platform

win7-20240705-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.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\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.exe

"C:\Users\Admin\AppData\Local\Temp\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.exe"

Network

N/A

Files

memory/468-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/468-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/468-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/468-3-0x0000000010000000-0x0000000010108000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-03 04:18

Reported

2024-09-03 04:20

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.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\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.exe

"C:\Users\Admin\AppData\Local\Temp\2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp

Files

memory/4588-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/4588-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/4588-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/4588-3-0x0000000010000000-0x0000000010108000-memory.dmp