Malware Analysis Report

2024-10-19 08:15

Sample ID 240412-dqqhzsdd63
Target eeff2ab6ead0a81df9718b2de5d81d08_JaffaCakes118
SHA256 212918a42f744a3cdc9c42aae2dd287ad3d33facfc3a85a484f73cad6e592dc3
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

212918a42f744a3cdc9c42aae2dd287ad3d33facfc3a85a484f73cad6e592dc3

Threat Level: Known bad

The file eeff2ab6ead0a81df9718b2de5d81d08_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

expiro backdoor

Expiro, m0yv

Expiro payload

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-12 03:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-12 03:13

Reported

2024-04-12 03:15

Platform

win7-20240221-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eeff2ab6ead0a81df9718b2de5d81d08_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\eeff2ab6ead0a81df9718b2de5d81d08_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eeff2ab6ead0a81df9718b2de5d81d08_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2112 -s 68

Network

N/A

Files

memory/2112-0-0x0000000001030000-0x000000000112F000-memory.dmp

memory/2112-1-0x0000000001030000-0x000000000112F000-memory.dmp

memory/2112-2-0x0000000001030000-0x000000000112F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-12 03:13

Reported

2024-04-12 03:15

Platform

win10v2004-20240226-en

Max time kernel

114s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eeff2ab6ead0a81df9718b2de5d81d08_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\eeff2ab6ead0a81df9718b2de5d81d08_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eeff2ab6ead0a81df9718b2de5d81d08_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5056 -ip 5056

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 256

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1032 --field-trial-handle=2256,i,9172343514068348080,519219714517961765,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/5056-0-0x00000000006D0000-0x00000000007CF000-memory.dmp

memory/5056-1-0x00000000006D0000-0x00000000007CF000-memory.dmp

memory/5056-2-0x00000000006D0000-0x00000000007CF000-memory.dmp