Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-lpap5szpgr
Target JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af
SHA256 874206c5b26afbcfc92cf0dc45b4c0e7b503bc9d97b431e798b222c8e76a71be
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

874206c5b26afbcfc92cf0dc45b4c0e7b503bc9d97b431e798b222c8e76a71be

Threat Level: Known bad

The file JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

Expiro, m0yv

Expiro family

Expiro payload

System Location Discovery: System Language Discovery

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-03 09:41

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 09:41

Reported

2025-01-03 09:44

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af.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_6bbb7b48d3ccbf2dc54ffdc8f7db92af.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af.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 60.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.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 31.243.111.52.in-addr.arpa udp

Files

memory/2276-0-0x0000000001000000-0x00000000011BC000-memory.dmp

memory/2276-1-0x000000000100F000-0x0000000001010000-memory.dmp

memory/2276-2-0x0000000001000000-0x00000000011BC000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 09:41

Reported

2025-01-03 09:44

Platform

win7-20240903-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af.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_6bbb7b48d3ccbf2dc54ffdc8f7db92af.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bbb7b48d3ccbf2dc54ffdc8f7db92af.exe"

Network

N/A

Files

memory/1904-0-0x0000000001000000-0x00000000011BC000-memory.dmp

memory/1904-1-0x0000000000BA0000-0x0000000000D5C000-memory.dmp

memory/1904-2-0x0000000000BA0000-0x0000000000D5C000-memory.dmp

memory/1904-3-0x0000000001000000-0x00000000011BC000-memory.dmp