Malware Analysis Report

2024-10-23 20:58

Sample ID 240411-2f5rxsaf2s
Target ee7da429fe5ec4209b01cfcc8d867cfa_JaffaCakes118
SHA256 54e823e778135245e1ac095fd6af3320dc8235dfdb1f973144ecb5a532ac45a6
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

54e823e778135245e1ac095fd6af3320dc8235dfdb1f973144ecb5a532ac45a6

Threat Level: Known bad

The file ee7da429fe5ec4209b01cfcc8d867cfa_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

expiro backdoor

Expiro, m0yv

Expiro payload

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-11 22:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-11 22:32

Reported

2024-04-11 22:35

Platform

win7-20240221-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ee7da429fe5ec4209b01cfcc8d867cfa_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\ee7da429fe5ec4209b01cfcc8d867cfa_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ee7da429fe5ec4209b01cfcc8d867cfa_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 124

Network

N/A

Files

memory/2872-0-0x0000000001140000-0x0000000001292000-memory.dmp

memory/2872-1-0x0000000001140000-0x0000000001292000-memory.dmp

memory/2872-2-0x0000000001140000-0x0000000001292000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-11 22:32

Reported

2024-04-11 22:35

Platform

win10v2004-20231215-en

Max time kernel

91s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ee7da429fe5ec4209b01cfcc8d867cfa_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\ee7da429fe5ec4209b01cfcc8d867cfa_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ee7da429fe5ec4209b01cfcc8d867cfa_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5264 -ip 5264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5264 -s 340

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp

Files

memory/5264-0-0x00000000009F0000-0x0000000000B42000-memory.dmp

memory/5264-1-0x00000000009F0000-0x0000000000B42000-memory.dmp

memory/5264-2-0x00000000009F0000-0x0000000000B42000-memory.dmp