Malware Analysis Report

2024-10-19 08:16

Sample ID 240831-gmjg2syfqa
Target c4cc29108ef8565e5251c56047586e20.zip
SHA256 fd803509cebeb8fde6b4e36a62b7b3400572bb74dc55521324caa849730a14bc
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

fd803509cebeb8fde6b4e36a62b7b3400572bb74dc55521324caa849730a14bc

Threat Level: Known bad

The file c4cc29108ef8565e5251c56047586e20.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 05:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 05:55

Reported

2024-08-31 05:57

Platform

win7-20240704-en

Max time kernel

14s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.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

Processes

C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe

"C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe"

Network

N/A

Files

memory/2056-0-0x000000000008B000-0x000000000011E000-memory.dmp

memory/2056-1-0x0000000000020000-0x000000000011E000-memory.dmp

memory/2056-2-0x000000000008B000-0x000000000011E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 05:55

Reported

2024-08-31 05:57

Platform

win10v2004-20240802-en

Max time kernel

140s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.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

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\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe

"C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.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/3240-0-0x000000000015B000-0x00000000001EE000-memory.dmp

memory/3240-2-0x00000000000F0000-0x00000000001EE000-memory.dmp

memory/3240-1-0x000000000015B000-0x00000000001EE000-memory.dmp

memory/3240-3-0x00000000000F0000-0x00000000001EE000-memory.dmp