Malware Analysis Report

2025-04-13 23:46

Sample ID 250103-s7ales1nct
Target JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71
SHA256 5f6fa9f99add355f6d57f73aed48fdaa1a5f36f134d5aabae8f68b5347b2bcaa
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

5f6fa9f99add355f6d57f73aed48fdaa1a5f36f134d5aabae8f68b5347b2bcaa

Threat Level: Known bad

The file JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71 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 15:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-03 15:45

Reported

2025-01-03 15:48

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe"

Signatures

Expiro family

expiro

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

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_6db46da877ebc2c737a9e8fb5395df71.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe"

Network

N/A

Files

memory/3064-0-0x0000000000400000-0x00000000005AE000-memory.dmp

memory/3064-1-0x0000000000403000-0x0000000000404000-memory.dmp

memory/3064-2-0x0000000000400000-0x00000000005AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-03 15:45

Reported

2025-01-03 15:48

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.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_6db46da877ebc2c737a9e8fb5395df71.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 61.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 29.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3648-0-0x0000000000400000-0x00000000005AE000-memory.dmp

memory/3648-1-0x0000000000403000-0x0000000000404000-memory.dmp

memory/3648-2-0x0000000000400000-0x00000000005AE000-memory.dmp