Malware Analysis Report

2024-10-19 08:14

Sample ID 240416-vnr3gahc3v
Target f3ef53b1dd92585affa108c640f14820_JaffaCakes118
SHA256 9d6bbc03bcef489d7b60ba076bdafda1e7d314b01c454ae82904b6fe54289367
Tags
expiro backdoor
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

9d6bbc03bcef489d7b60ba076bdafda1e7d314b01c454ae82904b6fe54289367

Threat Level: Known bad

The file f3ef53b1dd92585affa108c640f14820_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

expiro backdoor

Expiro, m0yv

Expiro payload

Unsigned PE

Program crash

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-16 17:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-16 17:08

Reported

2024-04-16 17:11

Platform

win7-20231129-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3ef53b1dd92585affa108c640f14820_JaffaCakes118.exe"

Signatures

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

Processes

C:\Users\Admin\AppData\Local\Temp\f3ef53b1dd92585affa108c640f14820_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f3ef53b1dd92585affa108c640f14820_JaffaCakes118.exe"

Network

N/A

Files

memory/1752-0-0x0000000000930000-0x0000000000A2F000-memory.dmp

memory/1752-1-0x0000000000930000-0x0000000000A2F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-16 17:08

Reported

2024-04-16 17:11

Platform

win10v2004-20240412-en

Max time kernel

93s

Max time network

114s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3ef53b1dd92585affa108c640f14820_JaffaCakes118.exe"

Signatures

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

Processes

C:\Users\Admin\AppData\Local\Temp\f3ef53b1dd92585affa108c640f14820_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f3ef53b1dd92585affa108c640f14820_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 896 -ip 896

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 896 -s 236

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 198.52.96.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 25.63.96.20.in-addr.arpa udp
US 8.8.8.8:53 22.186.200.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 249.138.73.23.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/896-0-0x0000000000620000-0x000000000071F000-memory.dmp

memory/896-1-0x0000000000620000-0x000000000071F000-memory.dmp

memory/896-2-0x0000000000620000-0x000000000071F000-memory.dmp