Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-ybpncszlft
Target JaffaCakes118_6f0d2894860ffa6438d9d8967f179340
SHA256 0666bbd94c6ddacffdbb4eae6951923c12a84e9b5a081734c24aea93b2bfbca1
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

0666bbd94c6ddacffdbb4eae6951923c12a84e9b5a081734c24aea93b2bfbca1

Threat Level: Known bad

The file JaffaCakes118_6f0d2894860ffa6438d9d8967f179340 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 19:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 19:36

Reported

2025-01-03 19:39

Platform

win7-20241010-en

Max time kernel

14s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f0d2894860ffa6438d9d8967f179340.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_6f0d2894860ffa6438d9d8967f179340.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f0d2894860ffa6438d9d8967f179340.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f0d2894860ffa6438d9d8967f179340.exe"

Network

N/A

Files

memory/3000-0-0x0000000001000000-0x000000000119D000-memory.dmp

memory/3000-1-0x0000000001001000-0x0000000001002000-memory.dmp

memory/3000-2-0x0000000001000000-0x000000000119D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 19:36

Reported

2025-01-03 19:39

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f0d2894860ffa6438d9d8967f179340.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_6f0d2894860ffa6438d9d8967f179340.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f0d2894860ffa6438d9d8967f179340.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f0d2894860ffa6438d9d8967f179340.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/2932-0-0x0000000001000000-0x000000000119D000-memory.dmp

memory/2932-1-0x0000000001000000-0x000000000119D000-memory.dmp