Malware Analysis Report

2024-10-23 20:59

Sample ID 240901-x12hsazcjr
Target de1a75bb31a301aebc6388f8c4862cfd.zip
SHA256 ab8b94d9b1e3ece3c09ef6a36579f6184b67c391db5e75c519cf03fecf07d9a8
Tags
expiro backdoor
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ab8b94d9b1e3ece3c09ef6a36579f6184b67c391db5e75c519cf03fecf07d9a8

Threat Level: Known bad

The file de1a75bb31a301aebc6388f8c4862cfd.zip was found to be: Known bad.

Malicious Activity Summary

expiro backdoor

Expiro, m0yv

Expiro payload

Unsigned PE

Program crash

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-09-01 19:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 19:20

Reported

2024-09-01 19:22

Platform

win10v2004-20240802-en

Max time kernel

96s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eee7f25feb5dbb96db1e0db9bfbf340a0294b8a68d320b26034eb204a019c545.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

Processes

C:\Users\Admin\AppData\Local\Temp\eee7f25feb5dbb96db1e0db9bfbf340a0294b8a68d320b26034eb204a019c545.exe

"C:\Users\Admin\AppData\Local\Temp\eee7f25feb5dbb96db1e0db9bfbf340a0294b8a68d320b26034eb204a019c545.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3752 -ip 3752

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 200

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 44.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/3752-0-0x0000000000D00000-0x0000000000D94000-memory.dmp

memory/3752-1-0x0000000000C90000-0x0000000000D94000-memory.dmp

memory/3752-2-0x0000000000D00000-0x0000000000D94000-memory.dmp

memory/3752-3-0x0000000000C90000-0x0000000000D94000-memory.dmp