Malware Analysis Report

2024-11-13 12:58

Sample ID 240425-ymnv7sea73
Target x86_64
SHA256 b6538d6af7fc74e1f6d2d49177df9d83debbf5972f485812f5811920fd86ca11
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

b6538d6af7fc74e1f6d2d49177df9d83debbf5972f485812f5811920fd86ca11

Threat Level: Known bad

The file x86_64 was found to be: Known bad.

Malicious Activity Summary

mirai mirai evasion

Mirai family

Deletes Audit logs

Deletes journal logs

Deletes itself

Deletes system logs

Modifies Watchdog functionality

Deletes log files

Enumerates running processes

Changes its process name

Reads CPU attributes

Reads runtime system information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-25 19:54

Signatures

Mirai family

mirai

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-25 19:54

Reported

2024-04-25 19:55

Platform

ubuntu2004-amd64-20240221-en

Max time kernel

79s

Max time network

83s

Command Line

[/tmp/x86_64]

Signatures

Deletes Audit logs

evasion
Description Indicator Process Target
File deleted /var/log/audit/audit.log /tmp/x86_64 N/A

Deletes itself

Description Indicator Process Target
N/A N/A /tmp/x86_64 N/A

Deletes journal logs

evasion
Description Indicator Process Target
File deleted /var/log/journal/4816dd152e8c48ff97e9117d197c13d8/system.journal /tmp/x86_64 N/A

Deletes system logs

evasion
Description Indicator Process Target
File deleted /var/log/syslog /tmp/x86_64 N/A

Modifies Watchdog functionality

Description Indicator Process Target
File opened for modification /dev/watchdog /tmp/x86_64 N/A
File opened for modification /dev/misc/watchdog /tmp/x86_64 N/A

Deletes log files

Description Indicator Process Target
File deleted /var/log/apport.log /tmp/x86_64 N/A
File deleted /var/log/auth.log /tmp/x86_64 N/A
File deleted /var/log/Xorg.0.log /tmp/x86_64 N/A
File deleted /var/log/kern.log /tmp/x86_64 N/A

Enumerates running processes

Changes its process name

Description Indicator Process Target
Changes the process name, possibly in an attempt to hide itself vw4gd8a2fvqr1uj5hh3e /tmp/x86_64 N/A

Reads CPU attributes

Description Indicator Process Target
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pkill N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/92/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1102/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1239/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1478/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1457/status /usr/bin/pkill N/A
File opened for reading /proc/73/cmdline /usr/bin/pkill N/A
File opened for reading /proc/159/status /usr/bin/pkill N/A
File opened for reading /proc/159/status /usr/bin/pkill N/A
File opened for reading /proc/502/status /usr/bin/pkill N/A
File opened for reading /proc/513/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1086/status /usr/bin/pkill N/A
File opened for reading /proc/1104/cmdline /usr/bin/pkill N/A
File opened for reading /proc/6/status /usr/bin/pkill N/A
File opened for reading /proc/176/cmdline /usr/bin/pkill N/A
File opened for reading /proc/503/status /usr/bin/pkill N/A
File opened for reading /proc/1319/cmdline /usr/bin/pkill N/A
File opened for reading /proc/456/cmdline /usr/bin/pkill N/A
File opened for reading /proc/952/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1181/status /usr/bin/pkill N/A
File opened for reading /proc/1309/cmdline /usr/bin/pkill N/A
File opened for reading /proc/89/status /usr/bin/pkill N/A
File opened for reading /proc/1030/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1778/cmdline /tmp/x86_64 N/A
File opened for reading /proc/274/cmdline /usr/bin/pkill N/A
File opened for reading /proc/513/status /usr/bin/pkill N/A
File opened for reading /proc/1040/status /usr/bin/pkill N/A
File opened for reading /proc/693/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1048/cmdline /usr/bin/pkill N/A
File opened for reading /proc/2/status /usr/bin/pkill N/A
File opened for reading /proc/159/cmdline /usr/bin/pkill N/A
File opened for reading /proc/693/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1480/status /usr/bin/pkill N/A
File opened for reading /proc/20/status /usr/bin/pkill N/A
File opened for reading /proc/999/status /usr/bin/pkill N/A
File opened for reading /proc/1048/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1061/status /usr/bin/pkill N/A
File opened for reading /proc/sys/kernel/osrelease /usr/bin/pkill N/A
File opened for reading /proc/201/status /usr/bin/pkill N/A
File opened for reading /proc/968/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1749/cmdline /tmp/x86_64 N/A
File opened for reading /proc/1810/cmdline /tmp/x86_64 N/A
File opened for reading /proc/458/status /usr/bin/pkill N/A
File opened for reading /proc/457/status /usr/bin/pkill N/A
File opened for reading /proc/1662/cmdline /tmp/x86_64 N/A
File opened for reading /proc/11/cmdline /usr/bin/pkill N/A
File opened for reading /proc/sys/kernel/osrelease /usr/bin/pkill N/A
File opened for reading /proc/980/status /usr/bin/pkill N/A
File opened for reading /proc/265/cmdline /usr/bin/pkill N/A
File opened for reading /proc/166/status /usr/bin/pkill N/A
File opened for reading /proc/631/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1052/status /usr/bin/pkill N/A
File opened for reading /proc/1052/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1421/cmdline /tmp/x86_64 N/A
File opened for reading /proc/1426/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1480/cmdline /usr/bin/pkill N/A
File opened for reading /proc/20/status /usr/bin/pkill N/A
File opened for reading /proc/88/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1040/cmdline /usr/bin/pkill N/A
File opened for reading /proc/974/status /usr/bin/pkill N/A
File opened for reading /proc/1140/cmdline /usr/bin/pkill N/A
File opened for reading /proc/1104/status /usr/bin/pkill N/A
File opened for reading /proc/1030/status /usr/bin/pkill N/A
File opened for reading /proc/1481/status /usr/bin/pkill N/A
File opened for reading /proc/24/status /usr/bin/pkill N/A

Processes

/tmp/x86_64

[/tmp/x86_64]

/usr/local/sbin/pkill

[pkill tcpdump]

/usr/local/bin/pkill

[pkill tcpdump]

/usr/sbin/pkill

[pkill tcpdump]

/usr/bin/pkill

[pkill tcpdump]

/usr/local/sbin/pkill

[pkill tshark]

/usr/local/sbin/pkill

[pkill wireshark]

/usr/local/sbin/pkill

[pkill dumpcap]

/usr/local/bin/pkill

[pkill wireshark]

/usr/local/sbin/pkill

[pkill dsniff]

/usr/local/sbin/pkill

[pkill ettercap]

/usr/local/bin/pkill

[pkill dumpcap]

/usr/sbin/pkill

[pkill wireshark]

/usr/local/bin/pkill

[pkill tshark]

/usr/local/bin/pkill

[pkill dsniff]

/usr/bin/pkill

[pkill wireshark]

/usr/local/bin/pkill

[pkill ettercap]

/usr/sbin/pkill

[pkill tshark]

/usr/sbin/pkill

[pkill dsniff]

/usr/local/sbin/pkill

[pkill ngrep]

/usr/bin/pkill

[pkill tshark]

/usr/sbin/pkill

[pkill ettercap]

/usr/bin/pkill

[pkill dsniff]

/usr/sbin/pkill

[pkill dumpcap]

/usr/bin/pkill

[pkill ettercap]

/usr/bin/pkill

[pkill dumpcap]

/usr/local/bin/pkill

[pkill ngrep]

/usr/sbin/pkill

[pkill ngrep]

/usr/local/sbin/pkill

[pkill tcpflow]

/usr/bin/pkill

[pkill ngrep]

/usr/local/bin/pkill

[pkill tcpflow]

/usr/local/sbin/pkill

[pkill windump]

/usr/sbin/pkill

[pkill tcpflow]

/usr/bin/pkill

[pkill tcpflow]

/usr/local/bin/pkill

[pkill windump]

/usr/local/sbin/pkill

[pkill netsniff-ng]

/usr/sbin/pkill

[pkill windump]

/usr/bin/pkill

[pkill windump]

/usr/local/bin/pkill

[pkill netsniff-ng]

/usr/sbin/pkill

[pkill netsniff-ng]

/usr/bin/pkill

[pkill netsniff-ng]

/usr/local/sbin/rm

[rm -rf /usr/bin/ettercap]

/usr/local/sbin/rm

[rm -rf /usr/bin/dsniff]

/usr/local/sbin/rm

[rm -rf /usr/bin/ngrep]

/usr/local/sbin/rm

[rm -rf /usr/bin/tcpflow]

/usr/local/sbin/rm

[rm -rf /usr/bin/netsniff-ng]

/usr/local/sbin/rm

[rm -rf /usr/sbin/ngrep]

/usr/local/sbin/rm

[rm -rf /usr/sbin/tcpflow]

/usr/local/sbin/rm

[rm -rf /usr/sbin/windump]

/usr/local/sbin/rm

[rm -rf /usr/sbin/netsniff-ng]

/usr/local/sbin/rm

[rm -rf /usr/bin/tcpdump]

/usr/local/sbin/rm

[rm -rf /usr/bin/tshark]

/usr/local/sbin/rm

[rm -rf /usr/bin/wireshark]

/usr/local/sbin/rm

[rm -rf /usr/bin/dumpcap]

/usr/local/sbin/rm

[rm -rf /usr/bin/windump]

/usr/local/sbin/rm

[rm -rf /usr/sbin/dsniff]

/usr/local/bin/rm

[rm -rf /usr/bin/tcpdump]

/usr/local/bin/rm

[rm -rf /usr/bin/dsniff]

/usr/local/bin/rm

[rm -rf /usr/sbin/windump]

/usr/local/bin/rm

[rm -rf /usr/bin/windump]

/usr/local/bin/rm

[rm -rf /usr/sbin/tcpflow]

/usr/local/bin/rm

[rm -rf /usr/bin/wireshark]

/usr/local/bin/rm

[rm -rf /usr/sbin/ngrep]

/usr/local/bin/rm

[rm -rf /usr/sbin/netsniff-ng]

/usr/local/bin/rm

[rm -rf /usr/bin/dumpcap]

/usr/local/bin/rm

[rm -rf /usr/bin/ngrep]

/usr/local/bin/rm

[rm -rf /usr/bin/netsniff-ng]

/usr/local/bin/rm

[rm -rf /usr/bin/tcpflow]

/usr/local/bin/rm

[rm -rf /usr/bin/ettercap]

/usr/local/bin/rm

[rm -rf /usr/bin/tshark]

/usr/local/sbin/rm

[rm -rf /usr/sbin/ettercap]

/usr/sbin/rm

[rm -rf /usr/bin/wireshark]

/usr/sbin/rm

[rm -rf /usr/bin/windump]

/usr/sbin/rm

[rm -rf /usr/sbin/tcpflow]

/usr/local/bin/rm

[rm -rf /usr/sbin/dsniff]

/usr/sbin/rm

[rm -rf /usr/bin/dsniff]

/usr/sbin/rm

[rm -rf /usr/sbin/netsniff-ng]

/usr/sbin/rm

[rm -rf /usr/sbin/windump]

/usr/sbin/rm

[rm -rf /usr/bin/dumpcap]

/usr/sbin/rm

[rm -rf /usr/bin/tcpdump]

/usr/sbin/rm

[rm -rf /usr/sbin/ngrep]

/usr/sbin/rm

[rm -rf /usr/bin/netsniff-ng]

/usr/sbin/rm

[rm -rf /usr/bin/tcpflow]

/usr/sbin/rm

[rm -rf /usr/bin/ettercap]

/usr/sbin/rm

[rm -rf /usr/bin/tshark]

/usr/bin/rm

[rm -rf /usr/bin/windump]

/usr/sbin/rm

[rm -rf /usr/bin/ngrep]

/usr/bin/rm

[rm -rf /usr/sbin/tcpflow]

/usr/bin/rm

[rm -rf /usr/bin/wireshark]

/usr/bin/rm

[rm -rf /usr/sbin/netsniff-ng]

/usr/bin/rm

[rm -rf /usr/bin/dsniff]

/usr/bin/rm

[rm -rf /usr/bin/netsniff-ng]

/usr/bin/rm

[rm -rf /usr/bin/tcpdump]

/usr/bin/rm

[rm -rf /usr/sbin/windump]

/usr/bin/rm

[rm -rf /usr/bin/dumpcap]

/usr/local/bin/rm

[rm -rf /usr/sbin/ettercap]

/usr/bin/rm

[rm -rf /usr/sbin/ngrep]

/usr/bin/rm

[rm -rf /usr/bin/tshark]

/usr/bin/rm

[rm -rf /usr/bin/tcpflow]

/usr/bin/rm

[rm -rf /usr/bin/ettercap]

/usr/sbin/rm

[rm -rf /usr/sbin/dsniff]

/usr/bin/rm

[rm -rf /usr/bin/ngrep]

/usr/local/sbin/rm

[rm -rf /usr/sbin/dumpcap]

/usr/bin/rm

[rm -rf /usr/sbin/dsniff]

/usr/sbin/rm

[rm -rf /usr/sbin/ettercap]

/usr/bin/rm

[rm -rf /usr/sbin/ettercap]

/usr/local/bin/rm

[rm -rf /usr/sbin/dumpcap]

/usr/sbin/rm

[rm -rf /usr/sbin/dumpcap]

/usr/local/sbin/rm

[rm -rf /usr/sbin/wireshark]

/usr/bin/rm

[rm -rf /usr/sbin/dumpcap]

/usr/local/bin/rm

[rm -rf /usr/sbin/wireshark]

/usr/sbin/rm

[rm -rf /usr/sbin/wireshark]

/usr/bin/rm

[rm -rf /usr/sbin/wireshark]

/usr/local/sbin/rm

[rm -rf /usr/sbin/tshark]

/usr/local/bin/rm

[rm -rf /usr/sbin/tshark]

/usr/sbin/rm

[rm -rf /usr/sbin/tshark]

/usr/bin/rm

[rm -rf /usr/sbin/tshark]

/usr/local/sbin/rm

[rm -rf /usr/sbin/tcpdump]

/usr/local/bin/rm

[rm -rf /usr/sbin/tcpdump]

/usr/sbin/rm

[rm -rf /usr/sbin/tcpdump]

/usr/bin/rm

[rm -rf /usr/sbin/tcpdump]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 connectivity-check.ubuntu.com udp
US 1.1.1.1:53 tcpdown.su udp
US 1.1.1.1:53 daisy.ubuntu.com udp
US 1.1.1.1:53 daisy.ubuntu.com udp
US 1.1.1.1:53 cdn.fwupd.org udp
US 1.1.1.1:53 cdn.fwupd.org udp
US 151.101.194.49:443 cdn.fwupd.org tcp
US 1.1.1.1:53 daisy.ubuntu.com udp
US 1.1.1.1:53 _http._tcp.security.ubuntu.com udp
US 1.1.1.1:53 _https._tcp.deb.nodesource.com udp
US 1.1.1.1:53 _http._tcp.nl.archive.ubuntu.com udp
US 151.101.194.49:443 cdn.fwupd.org tcp
US 1.1.1.1:53 _https._tcp.motd.ubuntu.com udp
US 1.1.1.1:53 motd.ubuntu.com udp
US 1.1.1.1:53 motd.ubuntu.com udp
US 1.1.1.1:53 _https._tcp.esm.ubuntu.com udp
US 1.1.1.1:53 esm.ubuntu.com udp
US 1.1.1.1:53 esm.ubuntu.com udp
GB 185.125.190.23:443 esm.ubuntu.com tcp
US 104.168.45.11:7722 tcp
US 104.168.45.11:7722 tcp
US 104.168.45.11:7722 tcp
US 1.1.1.1:53 tcpdown.su udp
US 1.1.1.1:53 tcpdown.su udp
US 198.12.124.76:21425 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
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

Files

N/A