Malware Analysis Report

2025-06-15 23:18

Sample ID 241014-f2j7fszdma
Target na.elf
SHA256 24ecc191f11be7b8ed2929acfbd71eabf107cafe915325bd4500eea55a2620f0
Tags
upx mirai botnet defense_evasion 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 Overview

score
10/10

SHA256

24ecc191f11be7b8ed2929acfbd71eabf107cafe915325bd4500eea55a2620f0

Threat Level: Known bad

The file na.elf was found to be: Known bad.

Malicious Activity Summary

upx mirai botnet defense_evasion discovery

Mirai

Modifies Watchdog functionality

Enumerates running processes

Writes file to system bin folder

UPX packed file

Reads runtime system information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-14 05:22

Signatures

UPX packed file

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-14 05:22

Reported

2024-10-14 05:24

Platform

debian9-mipsbe-20240729-en

Max time kernel

136s

Max time network

148s

Command Line

[/tmp/na.elf]

Signatures

Mirai

botnet mirai

Modifies Watchdog functionality

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

Enumerates running processes

Writes file to system bin folder

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

Reads runtime system information

discovery
Description Indicator Process Target
File opened for reading /proc/17/status /tmp/na.elf N/A
File opened for reading /proc/20/status /tmp/na.elf N/A
File opened for reading /proc/72/status /tmp/na.elf N/A
File opened for reading /proc/341/status /tmp/na.elf N/A
File opened for reading /proc/376/status /tmp/na.elf N/A
File opened for reading /proc/716/status /tmp/na.elf N/A
File opened for reading /proc/14/status /tmp/na.elf N/A
File opened for reading /proc/36/status /tmp/na.elf N/A
File opened for reading /proc/690/status /tmp/na.elf N/A
File opened for reading /proc/715/status /tmp/na.elf N/A
File opened for reading /proc/721/status /tmp/na.elf N/A
File opened for reading /proc/723/status /tmp/na.elf N/A
File opened for reading /proc/7/status /tmp/na.elf N/A
File opened for reading /proc/71/status /tmp/na.elf N/A
File opened for reading /proc/73/status /tmp/na.elf N/A
File opened for reading /proc/81/status /tmp/na.elf N/A
File opened for reading /proc/443/status /tmp/na.elf N/A
File opened for reading /proc/689/status /tmp/na.elf N/A
File opened for reading /proc/11/status /tmp/na.elf N/A
File opened for reading /proc/16/status /tmp/na.elf N/A
File opened for reading /proc/344/status /tmp/na.elf N/A
File opened for reading /proc/2/status /tmp/na.elf N/A
File opened for reading /proc/19/status /tmp/na.elf N/A
File opened for reading /proc/24/status /tmp/na.elf N/A
File opened for reading /proc/74/status /tmp/na.elf N/A
File opened for reading /proc/111/status /tmp/na.elf N/A
File opened for reading /proc/683/status /tmp/na.elf N/A
File opened for reading /proc/727/status /tmp/na.elf N/A
File opened for reading /proc/3/status /tmp/na.elf N/A
File opened for reading /proc/5/status /tmp/na.elf N/A
File opened for reading /proc/21/status /tmp/na.elf N/A
File opened for reading /proc/83/status /tmp/na.elf N/A
File opened for reading /proc/158/status /tmp/na.elf N/A
File opened for reading /proc/346/status /tmp/na.elf N/A
File opened for reading /proc/396/status /tmp/na.elf N/A
File opened for reading /proc/22/status /tmp/na.elf N/A
File opened for reading /proc/67/status /tmp/na.elf N/A
File opened for reading /proc/686/status /tmp/na.elf N/A
File opened for reading /proc/718/status /tmp/na.elf N/A
File opened for reading /proc/720/status /tmp/na.elf N/A
File opened for reading /proc/75/status /tmp/na.elf N/A
File opened for reading /proc/15/status /tmp/na.elf N/A
File opened for reading /proc/84/status /tmp/na.elf N/A
File opened for reading /proc/8/status /tmp/na.elf N/A
File opened for reading /proc/9/status /tmp/na.elf N/A
File opened for reading /proc/13/status /tmp/na.elf N/A
File opened for reading /proc/23/status /tmp/na.elf N/A
File opened for reading /proc/125/status /tmp/na.elf N/A
File opened for reading /proc/251/status /tmp/na.elf N/A
File opened for reading /proc/4/status /tmp/na.elf N/A
File opened for reading /proc/12/status /tmp/na.elf N/A
File opened for reading /proc/150/status /tmp/na.elf N/A
File opened for reading /proc/18/status /tmp/na.elf N/A
File opened for reading /proc/77/status /tmp/na.elf N/A
File opened for reading /proc/78/status /tmp/na.elf N/A
File opened for reading /proc/390/status /tmp/na.elf N/A
File opened for reading /proc/392/status /tmp/na.elf N/A
File opened for reading /proc/10/status /tmp/na.elf N/A
File opened for reading /proc/337/status /tmp/na.elf N/A
File opened for reading /proc/701/status /tmp/na.elf N/A
File opened for reading /proc/724/status /tmp/na.elf N/A
File opened for reading /proc/1/status /tmp/na.elf N/A
File opened for reading /proc/6/status /tmp/na.elf N/A
File opened for reading /proc/37/status /tmp/na.elf N/A

Processes

/tmp/na.elf

[/tmp/na.elf]

Network

Country Destination Domain Proto
DE 45.131.65.138:3778 tcp
DE 45.131.65.138:3778 tcp

Files

memory/724-1-0x00400000-0x0043cffc-memory.dmp