Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-nt7xjs1pfy
Target JaffaCakes118_6c5d68f5e055442abb86593d0683ebab
SHA256 60b27528817adeefb8fe848ad3e363b0691e4adcc183d9376f859e3568c027af
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

60b27528817adeefb8fe848ad3e363b0691e4adcc183d9376f859e3568c027af

Threat Level: Known bad

The file JaffaCakes118_6c5d68f5e055442abb86593d0683ebab was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

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 11:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 11:42

Reported

2025-01-03 11:44

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c5d68f5e055442abb86593d0683ebab.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_6c5d68f5e055442abb86593d0683ebab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c5d68f5e055442abb86593d0683ebab.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c5d68f5e055442abb86593d0683ebab.exe"

Network

N/A

Files

memory/2376-0-0x0000000001000000-0x0000000001262000-memory.dmp

memory/2376-1-0x0000000001003000-0x0000000001005000-memory.dmp

memory/2376-2-0x0000000001000000-0x0000000001262000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 11:42

Reported

2025-01-03 11:45

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c5d68f5e055442abb86593d0683ebab.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_6c5d68f5e055442abb86593d0683ebab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c5d68f5e055442abb86593d0683ebab.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c5d68f5e055442abb86593d0683ebab.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 167.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4620-0-0x0000000001000000-0x0000000001262000-memory.dmp

memory/4620-1-0x0000000001003000-0x0000000001005000-memory.dmp

memory/4620-2-0x0000000001000000-0x0000000001262000-memory.dmp