Malware Analysis Report

2024-10-23 20:58

Sample ID 240410-m3htcagc8v
Target eae9019d1976bfa42ce219392a42e98b_JaffaCakes118
SHA256 4f098737a0b13e9129123e1fa03e34a8473421fe818282fe8e58ca6749dce747
Tags
expiro backdoor
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

4f098737a0b13e9129123e1fa03e34a8473421fe818282fe8e58ca6749dce747

Threat Level: Known bad

The file eae9019d1976bfa42ce219392a42e98b_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

2024-04-10 10:59

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-10 10:59

Reported

2024-04-10 11:01

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eae9019d1976bfa42ce219392a42e98b_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\eae9019d1976bfa42ce219392a42e98b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eae9019d1976bfa42ce219392a42e98b_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4656 -ip 4656

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 404

Network

Country Destination Domain Proto
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/4656-0-0x00000000009D0000-0x0000000000AE0000-memory.dmp

memory/4656-1-0x00000000009D0000-0x0000000000AE0000-memory.dmp

memory/4656-2-0x00000000009D0000-0x0000000000AE0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-10 10:59

Reported

2024-04-10 11:01

Platform

win7-20240221-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eae9019d1976bfa42ce219392a42e98b_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\eae9019d1976bfa42ce219392a42e98b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eae9019d1976bfa42ce219392a42e98b_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 132

Network

N/A

Files

memory/2220-0-0x0000000000C50000-0x0000000000D60000-memory.dmp

memory/2220-1-0x0000000000C50000-0x0000000000D60000-memory.dmp

memory/2220-2-0x0000000000C50000-0x0000000000D60000-memory.dmp