Malware Analysis Report

2025-08-11 07:22

Sample ID 240803-bpna5asflb
Target 42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf
SHA256 42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95
Tags
mirai lzrd botnet upx
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 Overview

score
10/10

SHA256

42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95

Threat Level: Known bad

The file 42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf was found to be: Known bad.

Malicious Activity Summary

mirai lzrd botnet upx

Mirai

Modifies Watchdog functionality

UPX packed file

Writes file to system bin folder

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-03 01:19

Signatures

UPX packed file

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 01:19

Reported

2024-08-03 01:21

Platform

debian9-mipsbe-20240729-en

Max time kernel

142s

Max time network

144s

Command Line

[/tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf]

Signatures

Mirai

botnet mirai

Modifies Watchdog functionality

Description Indicator Process Target
File opened for modification /dev/misc/watchdog /tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf N/A
File opened for modification /dev/watchdog /tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf N/A

Writes file to system bin folder

Description Indicator Process Target
File opened for modification /sbin/watchdog /tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf N/A
File opened for modification /bin/watchdog /tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf N/A

Processes

/tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf

[/tmp/42ab0ab2e4804f75963f4fd69ad812bc95a8dcf6a5fb865f338b2482abbaae95.elf]

Network

Country Destination Domain Proto
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp
NL 91.92.252.2:3778 tcp

Files

memory/718-1-0x00400000-0x004525fc-memory.dmp