Malware Analysis Report

2024-10-19 08:16

Sample ID 240831-c6xrka1eqh
Target 7a005fd53e4a3f5ff0192ea4b7090699.zip
SHA256 f0999ed2b9d0be10c6303188f265159d0569e3490f3ee619c76a59650c9bb329
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

f0999ed2b9d0be10c6303188f265159d0569e3490f3ee619c76a59650c9bb329

Threat Level: Known bad

The file 7a005fd53e4a3f5ff0192ea4b7090699.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 02:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 02:41

Reported

2024-08-31 02:44

Platform

win7-20240704-en

Max time kernel

9s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.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\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.exe

"C:\Users\Admin\AppData\Local\Temp\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.exe"

Network

N/A

Files

memory/2120-0-0x00000000000FB000-0x000000000018E000-memory.dmp

memory/2120-1-0x0000000000090000-0x000000000018E000-memory.dmp

memory/2120-2-0x00000000000FB000-0x000000000018E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 02:41

Reported

2024-08-31 02:44

Platform

win10v2004-20240802-en

Max time kernel

134s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.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\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.exe

"C:\Users\Admin\AppData\Local\Temp\e6e731aa7a555d24e130df62cd29c9227b77fc66dccea92ea468bcc5eccf2e4e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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/4708-0-0x00000000005EB000-0x000000000067E000-memory.dmp

memory/4708-2-0x00000000005EB000-0x000000000067E000-memory.dmp

memory/4708-1-0x0000000000580000-0x000000000067E000-memory.dmp

memory/4708-3-0x0000000000580000-0x000000000067E000-memory.dmp