Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-tt4ssavrcn
Target JaffaCakes118_6de5997154286c187b7a48beda1ba7cb
SHA256 ae91d3ef1703103163f8d23647bbe26be4588ee98881a21ebfc1f02c915162ce
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

ae91d3ef1703103163f8d23647bbe26be4588ee98881a21ebfc1f02c915162ce

Threat Level: Known bad

The file JaffaCakes118_6de5997154286c187b7a48beda1ba7cb 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 16:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 16:21

Reported

2025-01-03 16:24

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6de5997154286c187b7a48beda1ba7cb.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_6de5997154286c187b7a48beda1ba7cb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6de5997154286c187b7a48beda1ba7cb.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6de5997154286c187b7a48beda1ba7cb.exe"

Network

N/A

Files

memory/2148-0-0x0000000001000000-0x0000000001251000-memory.dmp

memory/2148-1-0x0000000001006000-0x0000000001008000-memory.dmp

memory/2148-2-0x0000000001000000-0x0000000001251000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 16:21

Reported

2025-01-03 16:24

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6de5997154286c187b7a48beda1ba7cb.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_6de5997154286c187b7a48beda1ba7cb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6de5997154286c187b7a48beda1ba7cb.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6de5997154286c187b7a48beda1ba7cb.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4616-0-0x0000000001000000-0x0000000001251000-memory.dmp

memory/4616-1-0x0000000001006000-0x0000000001008000-memory.dmp

memory/4616-2-0x0000000001000000-0x0000000001251000-memory.dmp