Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-m36v6szlgw
Target JaffaCakes118_6c2732f9a03893d94281166c1c1474c0
SHA256 f5192fd901af91d42629a250a7f41d2a4573f1a905774ca8941d78e64d73d2a9
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

f5192fd901af91d42629a250a7f41d2a4573f1a905774ca8941d78e64d73d2a9

Threat Level: Known bad

The file JaffaCakes118_6c2732f9a03893d94281166c1c1474c0 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

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-03 11:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 11:00

Reported

2025-01-03 11:02

Platform

win7-20240903-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c2732f9a03893d94281166c1c1474c0.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_6c2732f9a03893d94281166c1c1474c0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c2732f9a03893d94281166c1c1474c0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c2732f9a03893d94281166c1c1474c0.exe"

Network

N/A

Files

memory/2304-0-0x000000000048E000-0x00000000004B5000-memory.dmp

memory/2304-1-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2304-4-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2304-3-0x000000000048E000-0x00000000004B5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 11:00

Reported

2025-01-03 11:03

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c2732f9a03893d94281166c1c1474c0.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_6c2732f9a03893d94281166c1c1474c0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c2732f9a03893d94281166c1c1474c0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c2732f9a03893d94281166c1c1474c0.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 8.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

N/A