Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-h85svaxjhk
Target JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0
SHA256 18abf8c0026e55b4b2f60068081cf54fb10a9b1d5aa0d63c8f2d15d044f8b9b6
Tags
discovery expiro backdoor
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

18abf8c0026e55b4b2f60068081cf54fb10a9b1d5aa0d63c8f2d15d044f8b9b6

Threat Level: Known bad

The file JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0 was found to be: Known bad.

Malicious Activity Summary

discovery expiro backdoor

Expiro family

Expiro, m0yv

Expiro payload

System Location Discovery: System Language Discovery

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-03 07:25

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 07:25

Reported

2025-01-03 07:27

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe"

Signatures

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\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 07:25

Reported

2025-01-03 07:27

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe"

Signatures

Expiro family

expiro

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\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0f9ec37623a44c516bd030bb0330d0.exe"

Network

N/A

Files

memory/2404-0-0x0000000000458000-0x000000000047F000-memory.dmp

memory/2404-1-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2404-2-0x0000000000458000-0x000000000047F000-memory.dmp

memory/2404-3-0x0000000000400000-0x000000000047F000-memory.dmp