Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-hzqmkatmgy
Target JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0
SHA256 2626678b8c1e8117cc750e40f43a3ab97491eb96fe41b080b68285be90b7c5dd
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

2626678b8c1e8117cc750e40f43a3ab97491eb96fe41b080b68285be90b7c5dd

Threat Level: Known bad

The file JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0 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 07:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 07:10

Reported

2025-01-03 07:13

Platform

win7-20241010-en

Max time kernel

121s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0.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_6afec8709f9c2216c3bd416eb5920dd0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0.exe"

Network

N/A

Files

memory/564-0-0x0000000001000000-0x00000000011D6000-memory.dmp

memory/564-1-0x000000000102E000-0x000000000102F000-memory.dmp

memory/564-2-0x0000000001000000-0x00000000011D6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 07:10

Reported

2025-01-03 07:13

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0.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_6afec8709f9c2216c3bd416eb5920dd0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6afec8709f9c2216c3bd416eb5920dd0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 166.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 8.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3084-0-0x0000000001000000-0x00000000011D6000-memory.dmp

memory/3084-2-0x0000000001000000-0x00000000011D6000-memory.dmp

memory/3084-1-0x000000000102E000-0x000000000102F000-memory.dmp