Malware Analysis Report

2025-04-13 23:46

Sample ID 250104-afhhvasrhm
Target 9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe
SHA256 9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2
Tags
expiro backdoor discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2

Threat Level: Known bad

The file 9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

Expiro family

Expiro, m0yv

Expiro payload

System Location Discovery: System Language Discovery

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-04 00:09

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-04 00:09

Reported

2025-01-04 00:11

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe"

Signatures

Expiro family

expiro

Expiro, m0yv

backdoor expiro

Expiro payload

backdoor
Description Indicator Process Target
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\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe

"C:\Users\Admin\AppData\Local\Temp\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 60.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 21.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 182.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/4220-0-0x0000000001000000-0x000000000125E000-memory.dmp

memory/4220-1-0x000000000100F000-0x0000000001010000-memory.dmp

memory/4220-2-0x0000000001000000-0x000000000125E000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-04 00:09

Reported

2025-01-04 00:11

Platform

win7-20240708-en

Max time kernel

16s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe"

Signatures

Expiro family

expiro

Expiro, m0yv

backdoor expiro

Expiro payload

backdoor
Description Indicator Process Target
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\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe

"C:\Users\Admin\AppData\Local\Temp\9f0d95643c76f230ec97251be5099b5daa1d5eea9de9a7367446dafd6aba5ad2N.exe"

Network

N/A

Files

memory/2860-0-0x0000000001000000-0x000000000125E000-memory.dmp

memory/2860-1-0x0000000000A50000-0x0000000000CAE000-memory.dmp

memory/2860-2-0x0000000000A50000-0x0000000000CAE000-memory.dmp

memory/2860-3-0x0000000001000000-0x000000000125E000-memory.dmp