Malware Analysis Report

2024-11-15 05:13

Sample ID 240422-b68y6adh65
Target a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf
SHA256 a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e
Tags
mirai mirai evasion
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

a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e

Threat Level: Known bad

The file a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf was found to be: Known bad.

Malicious Activity Summary

mirai mirai evasion

Mirai family

Deletes Audit logs

Deletes system logs

Deletes itself

Modifies Watchdog functionality

Deletes log files

Enumerates running processes

Changes its process name

Reads runtime system information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-22 01:46

Signatures

Mirai family

mirai

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-22 01:46

Reported

2024-04-22 01:49

Platform

debian9-mipsbe-20240226-en

Max time kernel

148s

Max time network

150s

Command Line

[/tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf]

Signatures

Deletes Audit logs

evasion
Description Indicator Process Target
File deleted /var/log/audit/audit.log /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Deletes itself

Description Indicator Process Target
N/A N/A /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Deletes system logs

evasion
Description Indicator Process Target
File deleted /var/log/syslog /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Modifies Watchdog functionality

Description Indicator Process Target
File opened for modification /dev/misc/watchdog /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for modification /dev/watchdog /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Deletes log files

Description Indicator Process Target
File deleted /var/log/daemon.log /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File deleted /var/log/auth.log /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Enumerates running processes

Changes its process name

Description Indicator Process Target
Changes the process name, possibly in an attempt to hide itself w4j8wnmedmij /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/15/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/350/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/690/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/695/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/851/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/878/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/8/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/813/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/713/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/781/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/853/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/933/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/937/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/939/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/393/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/768/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/787/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/794/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/7/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/745/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/865/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/972/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/73/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/761/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/938/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/734/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/808/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/860/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/892/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/903/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/739/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/992/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/70/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/895/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/896/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/397/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/72/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/788/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/836/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/841/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/852/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/945/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/71/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/826/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/936/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/19/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/856/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/864/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/12/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/747/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/861/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/867/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/79/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/833/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/888/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/6/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/764/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/819/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/976/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/75/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/22/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/834/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/859/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A
File opened for reading /proc/18/cmdline /tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf N/A

Processes

/tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf

[/tmp/a1e1dca5ae87516c59f114b1ab914ac85b147781db055d795c4d016642d49c4e.elf]

Network

Country Destination Domain Proto
US 1.1.1.1:53 udp
US 1.1.1.1:53 tcpdown.su�@��@ udp
US 1.1.1.1:53 tcpdown.su�@��@ udp
US 1.1.1.1:53 tcpdown.su�@��@ udp
US 1.1.1.1:53 tcpdown.su�@��@ udp
US 1.1.1.1:53 tcpdown.su�@��@ udp
US 172.245.119.70:21425 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
US 104.168.45.11:7722 tcpdown.su tcp
BR 179.106.58.90:55434 udp
BR 177.54.118.171:43904 udp
BR 186.194.199.190:35029 udp
BR 191.240.231.115:15229 udp
US 104.168.45.11:7722 tcpdown.su tcp

Files

N/A