Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-xww3ha1qam
Target JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140
SHA256 d07792cd2a25994fc56851235526e55cb4dd39effb1c813b798aa13b75514387
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

d07792cd2a25994fc56851235526e55cb4dd39effb1c813b798aa13b75514387

Threat Level: Known bad

The file JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140 was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

Expiro family

Expiro, m0yv

Expiro payload

Unsigned PE

System Location Discovery: System Language Discovery

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-03 19:12

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 19:12

Reported

2025-01-03 19:15

Platform

win10v2004-20241007-en

Max time kernel

96s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.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\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/372-0-0x0000000000400000-0x0000000000663000-memory.dmp

memory/372-1-0x000000000040B000-0x000000000040C000-memory.dmp

memory/372-2-0x0000000000400000-0x0000000000663000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 19:12

Reported

2025-01-03 19:15

Platform

win7-20240903-en

Max time kernel

121s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.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\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee8f896a73d44dcf3578471f74e4140.exe"

Network

N/A

Files

memory/2280-0-0x0000000000400000-0x0000000000663000-memory.dmp

memory/2280-1-0x000000000040B000-0x000000000040C000-memory.dmp

memory/2280-2-0x0000000000400000-0x0000000000663000-memory.dmp