Analysis Overview
SHA256
4817893f8e724cbc5186e17f46d316223b7683dcbc9643e364b5913f8d2a9197
Threat Level: Known bad
The file 4aa80ec9c4af1849fb3f0c82cf82c99b was found to be: Known bad.
Malicious Activity Summary
Kaiten family
suricata: ET MALWARE ELF/Muhstik Botnet CnC Activity
Identified Kaiten Bot
Writes file to system bin folder
Modifies rc script
Write file to user bin folder
Reads runtime system information
Writes file to tmp directory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-03-14 05:55
Signatures
Identified Kaiten Bot
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Kaiten family
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-14 05:55
Reported
2022-03-14 05:57
Platform
debian9-mipsbe-en-20211208
Max time kernel
0s
Max time network
120s
Command Line
Signatures
suricata: ET MALWARE ELF/Muhstik Botnet CnC Activity
Writes file to system bin folder
| Description | Indicator | Process | Target |
| /bin/crontab | /bin/crontab | N/A | N/A |
| /bin/nvram | /bin/nvram | N/A | N/A |
| /bin/uname | /bin/uname | N/A | N/A |
Modifies rc script
| Description | Indicator | Process | Target |
| /etc/rc.local | /etc/rc.local | ./4aa80ec9c4af1849fb3f0c82cf82c99b | N/A |
Write file to user bin folder
| Description | Indicator | Process | Target |
| /usr/bin/crontab | /usr/bin/crontab | N/A | N/A |
| /usr/sbin/nvram | /usr/sbin/nvram | N/A | N/A |
Reads runtime system information
| Description | Indicator | Process | Target |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /bin/cp | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /bin/cp | N/A |
| /proc/filesystems | /proc/filesystems | /bin/cp | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /bin/cp | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
| /proc/filesystems | /proc/filesystems | /usr/bin/crontab | N/A |
Writes file to tmp directory
| Description | Indicator | Process | Target |
| /tmp/.bawtz | /tmp/.bawtz | ./4aa80ec9c4af1849fb3f0c82cf82c99b | N/A |
| /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /bin/cp | N/A |
| /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /bin/cp | N/A |
| /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /bin/cp | N/A |
| /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | /bin/cp | N/A |
Processes
./4aa80ec9c4af1849fb3f0c82cf82c99b
[./4aa80ec9c4af1849fb3f0c82cf82c99b]
/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/4aa80ec9c4af1849fb3f0c82cf82c99b" > /etc/inittab2]
/bin/sh
[sh -c crontab -r]
/bin/sh
[sh -c crontab -l | grep /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | grep -v "no cron" || (crontab -l ; echo "* * * * * /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b > /dev/null 2>&1 &") | crontab -]
/bin/grep
[grep /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/cat
[cat /etc/inittab]
/usr/bin/crontab
[crontab -r]
/bin/grep
[grep -v /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b]
/usr/bin/crontab
[crontab -l]
/bin/grep
[grep -v no cron]
/bin/sh
[sh -c echo "0:2345:respawn:/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b" >> /etc/inittab2]
/usr/bin/crontab
[crontab -]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c cat /etc/inittab2 > /etc/inittab]
/bin/cat
[cat /etc/inittab2]
/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/4aa80ec9c4af1849fb3f0c82cf82c99b /dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/sh
[sh -c /bin/uname -n]
/bin/uname
[/bin/uname -n]
/bin/cp
[cp -f /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b /dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/sh
[sh -c cat /etc/inittab | grep -v "/dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b" > /etc/inittab2]
/bin/sh
[sh -c crontab -l | grep /dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b | grep -v "no cron" || (crontab -l ; echo "* * * * * /dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b > /dev/null 2>&1 &") | crontab -]
/usr/bin/crontab
[crontab -l]
/bin/cat
[cat /etc/inittab]
/bin/grep
[grep /dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep -v /dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep -v no cron]
/bin/sh
[sh -c echo "0:2345:respawn:/dev/shm/4aa80ec9c4af1849fb3f0c82cf82c99b" >> /etc/inittab2]
/usr/bin/crontab
[crontab -l]
/usr/bin/crontab
[crontab -]
/bin/sh
[sh -c cat /etc/inittab2 > /etc/inittab]
/bin/cat
[cat /etc/inittab2]
/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/4aa80ec9c4af1849fb3f0c82cf82c99b /var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/cp
[cp -f /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b /var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/sh
[sh -c cat /etc/inittab | grep -v "/var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b" > /etc/inittab2]
/bin/sh
[sh -c crontab -l | grep /var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b | grep -v "no cron" || (crontab -l ; echo "* * * * * /var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b > /dev/null 2>&1 &") | crontab -]
/bin/cat
[cat /etc/inittab]
/bin/grep
[grep -v /var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep /var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep -v no cron]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c echo "0:2345:respawn:/var/tmp/4aa80ec9c4af1849fb3f0c82cf82c99b" >> /etc/inittab2]
/usr/bin/crontab
[crontab -]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c cat /etc/inittab2 > /etc/inittab]
/bin/cat
[cat /etc/inittab2]
/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/4aa80ec9c4af1849fb3f0c82cf82c99b /var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/cp
[cp -f /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b /var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/sh
[sh -c cat /etc/inittab | grep -v "/var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b" > /etc/inittab2]
/bin/sh
[sh -c crontab -l | grep /var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b | grep -v "no cron" || (crontab -l ; echo "* * * * * /var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b > /dev/null 2>&1 &") | crontab -]
/bin/grep
[grep /var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep -v /var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep -v no cron]
/bin/cat
[cat /etc/inittab]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c echo "0:2345:respawn:/var/lock/4aa80ec9c4af1849fb3f0c82cf82c99b" >> /etc/inittab2]
/usr/bin/crontab
[crontab -]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c cat /etc/inittab2 > /etc/inittab]
/bin/cat
[cat /etc/inittab2]
/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/4aa80ec9c4af1849fb3f0c82cf82c99b /var/run/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/cp
[cp -f /tmp/4aa80ec9c4af1849fb3f0c82cf82c99b /var/run/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/sh
[sh -c cat /etc/inittab | grep -v "/var/run/4aa80ec9c4af1849fb3f0c82cf82c99b" > /etc/inittab2]
/bin/sh
[sh -c crontab -l | grep /var/run/4aa80ec9c4af1849fb3f0c82cf82c99b | grep -v "no cron" || (crontab -l ; echo "* * * * * /var/run/4aa80ec9c4af1849fb3f0c82cf82c99b > /dev/null 2>&1 &") | crontab -]
/bin/cat
[cat /etc/inittab]
/bin/grep
[grep -v no cron]
/bin/grep
[grep /var/run/4aa80ec9c4af1849fb3f0c82cf82c99b]
/bin/grep
[grep -v /var/run/4aa80ec9c4af1849fb3f0c82cf82c99b]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c echo "0:2345:respawn:/var/run/4aa80ec9c4af1849fb3f0c82cf82c99b" >> /etc/inittab2]
/usr/bin/crontab
[crontab -]
/usr/bin/crontab
[crontab -l]
/bin/sh
[sh -c cat /etc/inittab2 > /etc/inittab]
/bin/cat
[cat /etc/inittab2]
/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]
Network
| Country | Destination | Domain | Proto |
| US | 85.120.225.141:8080 | tcp | |
| SG | 185.201.8.176:8080 | tcp | |
| US | 144.172.71.162:8080 | tcp | |
| RO | 89.33.194.89:8080 | tcp | |
| SG | 156.67.218.115:8080 | tcp | |
| SG | 156.67.218.115:8080 | tcp | |
| SG | 156.67.218.115:8080 | tcp | |
| SG | 37.44.244.106:8080 | tcp |