Malware Analysis Report

2024-11-15 09:40

Sample ID 220425-3xn16shga8
Target pty8
SHA256 7c4e9e95a27147623ec5b3be81c76c131a0871d75f50b148b93e88ef6ee0b468
Tags
kaiten
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7c4e9e95a27147623ec5b3be81c76c131a0871d75f50b148b93e88ef6ee0b468

Threat Level: Known bad

The file pty8 was found to be: Known bad.

Malicious Activity Summary

kaiten

Identified Kaiten Bot

Kaiten family

Reads runtime system information

Writes file to tmp directory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-04-25 23:53

Signatures

Identified Kaiten Bot

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

Kaiten family

kaiten

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-25 23:53

Reported

2022-04-26 00:01

Platform

ubuntu1804-amd64-en-20211208

Max time kernel

11949s

Max time network

155s

Command Line

[./pty8]

Signatures

Reads runtime system information

Description Indicator Process Target
/proc/filesystems /proc/filesystems /bin/cp N/A
/proc/filesystems /proc/filesystems /bin/cp N/A
/proc/filesystems /proc/filesystems /bin/cp N/A
/proc/filesystems /proc/filesystems /bin/cp N/A

Writes file to tmp directory

Description Indicator Process Target
/tmp/pty8 /tmp/pty8 /bin/cp N/A
/tmp/pty8 /tmp/pty8 /bin/cp N/A
/tmp/pty8 /tmp/pty8 /bin/cp N/A
/tmp/pty8 /tmp/pty8 /bin/cp N/A

Processes

./pty8

[./pty8]

/bin/sh

[sh -c pidof -x strace > /dev/null]

/bin/pidof

[pidof -x strace]

/bin/sh

[sh -c pidof -x tcpdump > /dev/null]

/bin/pidof

[pidof -x tcpdump]

/bin/sh

[sh -c cat /etc/inittab | grep -v "/tmp/pty8" > /etc/inittab2]

/bin/sh

[sh -c crontab -l | grep /tmp/pty8 | grep -v "no cron" || (crontab -l ; echo "* * * * * /tmp/pty8 > /dev/null 2>&1 &") | crontab -]

/bin/cat

[cat /etc/inittab]

/bin/sh

[sh -c crontab -r]

/bin/grep

[grep -v /tmp/pty8]

/usr/bin/crontab

[crontab -l]

/usr/bin/crontab

[crontab -r]

/bin/sh

[sh -c echo "0:2345:respawn:/tmp/pty8" >> /etc/inittab2]

/bin/grep

[grep /tmp/pty8]

/bin/grep

[grep -v no cron]

/bin/sh

[sh -c cat /etc/inittab2 > /etc/inittab]

/usr/bin/crontab

[crontab -]

/bin/cat

[cat /etc/inittab2]

/bin/sh

[sh -c rm -rf /etc/inittab2]

/usr/bin/crontab

[crontab -l]

/bin/rm

[rm -rf /etc/inittab2]

/bin/sh

[sh -c touch -acmr /bin/ls /etc/inittab]

/usr/bin/touch

[touch -acmr /bin/ls /etc/inittab]

/bin/sh

[sh -c cp -f /tmp/pty8 /dev/shm/pty8]

/bin/sh

[sh -c /bin/uname -n]

/bin/cp

[cp -f /tmp/pty8 /dev/shm/pty8]

/bin/uname

[/bin/uname -n]

/bin/sh

[sh -c cat /etc/inittab | grep -v "/dev/shm/pty8" > /etc/inittab2]

/bin/sh

[sh -c crontab -l | grep /dev/shm/pty8 | grep -v "no cron" || (crontab -l ; echo "* * * * * /dev/shm/pty8 > /dev/null 2>&1 &") | crontab -]

/bin/grep

[grep -v /dev/shm/pty8]

/bin/cat

[cat /etc/inittab]

/usr/bin/crontab

[crontab -l]

/bin/sh

[sh -c echo "0:2345:respawn:/dev/shm/pty8" >> /etc/inittab2]

/bin/grep

[grep /dev/shm/pty8]

/bin/grep

[grep -v no cron]

/bin/sh

[sh -c cat /etc/inittab2 > /etc/inittab]

/usr/bin/crontab

[crontab -]

/bin/cat

[cat /etc/inittab2]

/bin/sh

[sh -c rm -rf /etc/inittab2]

/usr/bin/crontab

[crontab -l]

/bin/rm

[rm -rf /etc/inittab2]

/bin/sh

[sh -c touch -acmr /bin/ls /etc/inittab]

/usr/bin/touch

[touch -acmr /bin/ls /etc/inittab]

/bin/sh

[sh -c cp -f /tmp/pty8 /var/tmp/pty8]

/bin/cp

[cp -f /tmp/pty8 /var/tmp/pty8]

/bin/sh

[sh -c cat /etc/inittab | grep -v "/var/tmp/pty8" > /etc/inittab2]

/bin/cat

[cat /etc/inittab]

/bin/sh

[sh -c crontab -l | grep /var/tmp/pty8 | grep -v "no cron" || (crontab -l ; echo "* * * * * /var/tmp/pty8 > /dev/null 2>&1 &") | crontab -]

/usr/bin/crontab

[crontab -l]

/bin/grep

[grep -v /var/tmp/pty8]

/bin/sh

[sh -c echo "0:2345:respawn:/var/tmp/pty8" >> /etc/inittab2]

/bin/grep

[grep /var/tmp/pty8]

/bin/grep

[grep -v no cron]

/bin/sh

[sh -c cat /etc/inittab2 > /etc/inittab]

/bin/cat

[cat /etc/inittab2]

/usr/bin/crontab

[crontab -]

/usr/bin/crontab

[crontab -l]

/bin/sh

[sh -c rm -rf /etc/inittab2]

/bin/rm

[rm -rf /etc/inittab2]

/bin/sh

[sh -c touch -acmr /bin/ls /etc/inittab]

/usr/bin/touch

[touch -acmr /bin/ls /etc/inittab]

/bin/sh

[sh -c cp -f /tmp/pty8 /var/lock/pty8]

/bin/cp

[cp -f /tmp/pty8 /var/lock/pty8]

/bin/sh

[sh -c cat /etc/inittab | grep -v "/var/lock/pty8" > /etc/inittab2]

/bin/cat

[cat /etc/inittab]

/bin/sh

[sh -c crontab -l | grep /var/lock/pty8 | grep -v "no cron" || (crontab -l ; echo "* * * * * /var/lock/pty8 > /dev/null 2>&1 &") | crontab -]

/usr/bin/crontab

[crontab -l]

/bin/grep

[grep -v /var/lock/pty8]

/bin/grep

[grep /var/lock/pty8]

/bin/sh

[sh -c echo "0:2345:respawn:/var/lock/pty8" >> /etc/inittab2]

/bin/grep

[grep -v no cron]

/bin/sh

[sh -c cat /etc/inittab2 > /etc/inittab]

/bin/cat

[cat /etc/inittab2]

/usr/bin/crontab

[crontab -]

/usr/bin/crontab

[crontab -l]

/bin/sh

[sh -c rm -rf /etc/inittab2]

/bin/rm

[rm -rf /etc/inittab2]

/bin/sh

[sh -c touch -acmr /bin/ls /etc/inittab]

/usr/bin/touch

[touch -acmr /bin/ls /etc/inittab]

/bin/sh

[sh -c cp -f /tmp/pty8 /var/run/pty8]

/bin/cp

[cp -f /tmp/pty8 /var/run/pty8]

/bin/sh

[sh -c cat /etc/inittab | grep -v "/var/run/pty8" > /etc/inittab2]

/bin/sh

[sh -c crontab -l | grep /var/run/pty8 | grep -v "no cron" || (crontab -l ; echo "* * * * * /var/run/pty8 > /dev/null 2>&1 &") | crontab -]

/bin/cat

[cat /etc/inittab]

/bin/grep

[grep -v /var/run/pty8]

/bin/sh

[sh -c echo "0:2345:respawn:/var/run/pty8" >> /etc/inittab2]

/usr/bin/crontab

[crontab -l]

/bin/grep

[grep /var/run/pty8]

/bin/sh

[sh -c cat /etc/inittab2 > /etc/inittab]

/bin/grep

[grep -v no cron]

/bin/cat

[cat /etc/inittab2]

/usr/bin/crontab

[crontab -]

/bin/sh

[sh -c rm -rf /etc/inittab2]

/usr/bin/crontab

[crontab -l]

/bin/rm

[rm -rf /etc/inittab2]

/bin/sh

[sh -c touch -acmr /bin/ls /etc/inittab]

/usr/bin/touch

[touch -acmr /bin/ls /etc/inittab]

Network

Country Destination Domain Proto
NL 67.209.115.148:8080 tcp
SG 185.201.8.176:8080 tcp
GB 178.159.3.213:8080 tcp
SG 37.44.244.106:8080 tcp
SG 141.136.47.97:8080 tcp
SG 156.67.218.115:8080 tcp
RO 89.33.194.89:8080 tcp
GB 178.159.3.213:8080 tcp
SG 156.67.218.115:8080 tcp
US 85.120.225.141:8080 tcp
SG 156.67.218.115:8080 tcp
US 85.120.225.141:8080 tcp
SG 156.67.218.115:8080 tcp
RO 89.33.194.89:8080 tcp
SG 37.44.244.106:8080 tcp
SG 141.136.47.97:8080 tcp
GB 178.159.3.213:8080 tcp
SG 156.67.218.115:8080 tcp
SG 156.67.218.115:8080 tcp
SG 156.67.218.115:8080 tcp
SG 156.67.218.115:8080 tcp
NL 67.209.115.148:8080 tcp
US 144.172.71.162:8080 tcp
US 144.172.71.162:8080 tcp
SG 185.201.8.176:8080 tcp
US 144.172.71.162:8080 tcp
SG 141.136.47.97:8080 tcp
SG 194.59.165.52:8080 tcp
GB 178.159.3.213:8080 tcp
SG 37.44.244.106:8080 tcp
US 85.120.225.141:8080 tcp
SG 156.67.218.115:8080 tcp

Files

N/A