Analysis
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max time kernel
80s -
max time network
43s -
platform
ubuntu-18.04_amd64 -
resource
ubuntu1804-amd64-20221111-en -
resource tags
arch:amd64arch:i386image:ubuntu1804-amd64-20221111-enkernel:4.15.0-161-genericlocale:en-usos:ubuntu-18.04-amd64system -
submitted
20-04-2023 08:22
Behavioral task
behavioral1
Sample
task2.bin
Resource
ubuntu1804-amd64-20221111-en
General
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Target
task2.bin
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Size
611KB
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MD5
12fecefe30f2ad8f49aae67b92920adc
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SHA1
1bba1ff3c667a41ae26b12995323f7df7c239173
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SHA256
c0b0225201fd3a4c08245e58bbb4b844e0d3426e89b9ac3fc34db37d994fb182
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SHA512
71cd6c7490c62629774ffc31ac2cbe3074949b7b7d1445044d1be649b8893c59a45930c813939c2af95bc91612bfad7e4fe301ec6a96012ea5a6e8caa0d344c0
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SSDEEP
12288:5BXOvdwV1/n/dQFhWlH/c1dHo4h9L+zNZrrIT6yF8EEP4UlUuTh1Au:5BXmkN/+Fhu/Qo4h9L+zNNIBVEBl/91l
Malware Config
Signatures
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Writes file to system bin folder 1 TTPs 5 IoCs
Processes:
description ioc /bin/qchwcirpsz /bin/qchwcirpsz /bin/ewiebhwsiq /bin/ewiebhwsiq /bin/hoxeddqmlo /bin/hoxeddqmlo /bin/omodnamrdd /bin/omodnamrdd /bin/qxjkipguqi /bin/qxjkipguqi -
Creates/modifies Cron job 1 TTPs 2 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
Processes:
sedshdescription ioc process /etc/crontab /etc/crontab sed /etc/crontab /etc/crontab sh -
Processes:
description ioc /etc/init.d/���'������'������� /etc/init.d/���'������'������� -
Modifies rc script 1 TTPs 17 IoCs
Adding/modifying system rc scripts is a common persistence mechanism.
Processes:
update-rc.ddescription ioc /etc/rc3.d/S90���'������'������� /etc/rc3.d/S90���'������'������� /etc/rc2.d/S90task2.bin /etc/rc2.d/S90task2.bin /etc/rc0.d/ /etc/rc0.d/ update-rc.d /etc/rc2.d/ /etc/rc2.d/ update-rc.d /etc/rc1.d/S90���'������'������� /etc/rc1.d/S90���'������'������� /etc/rc2.d/S90���'������'������� /etc/rc2.d/S90���'������'������� /etc/rc3.d/S90task2.bin /etc/rc3.d/S90task2.bin /etc/rc5.d/ /etc/rc5.d/ update-rc.d /etc/rc6.d/ /etc/rc6.d/ update-rc.d /etc/rc4.d/S90���'������'������� /etc/rc4.d/S90���'������'������� /etc/rc5.d/S90���'������'������� /etc/rc5.d/S90���'������'������� /etc/rc4.d/S90task2.bin /etc/rc4.d/S90task2.bin /etc/rc1.d/S90task2.bin /etc/rc1.d/S90task2.bin /etc/rc5.d/S90task2.bin /etc/rc5.d/S90task2.bin /etc/rc4.d/ /etc/rc4.d/ update-rc.d /etc/rc3.d/ /etc/rc3.d/ update-rc.d /etc/rc1.d/ /etc/rc1.d/ update-rc.d -
Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 103.106.245.71 Destination IP 72.52.178.23 -
Write file to user bin folder 1 TTPs 6 IoCs
Processes:
update-rc.ddescription ioc /usr/bin/hoxeddqmlo /usr/bin/hoxeddqmlo /usr/sbin/update-rc.d /usr/sbin/update-rc.d update-rc.d /usr/bin/omodnamrdd /usr/bin/omodnamrdd /usr/bin/qxjkipguqi /usr/bin/qxjkipguqi /usr/bin/qchwcirpsz /usr/bin/qchwcirpsz /usr/bin/ewiebhwsiq /usr/bin/ewiebhwsiq -
Reads runtime system information 7 IoCs
Reads data from /proc virtual filesystem.
Processes:
systemctlseddescription ioc process /proc/self/stat /proc/self/stat systemctl /proc/sys/kernel/osrelease /proc/sys/kernel/osrelease systemctl /proc/1/environ /proc/1/environ systemctl /proc/1/sched /proc/1/sched systemctl /proc/cmdline /proc/cmdline systemctl /proc/filesystems /proc/filesystems sed /proc/filesystems /proc/filesystems systemctl -
Writes file to tmp directory 5 IoCs
Malware often drops required files in the /tmp directory.
Processes:
description ioc /tmp/ewiebhwsiq /tmp/ewiebhwsiq /tmp/hoxeddqmlo /tmp/hoxeddqmlo /tmp/omodnamrdd /tmp/omodnamrdd /tmp/qxjkipguqi /tmp/qxjkipguqi /tmp/qchwcirpsz /tmp/qchwcirpsz
Processes
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/tmp/task2.bin/tmp/task2.bin1⤵PID:586
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/bin/shsh -c "sed -i '/\\/etc\\/cron.hourly\\/gcc.sh/d' /etc/crontab && echo '*/3 * * * * root /etc/cron.hourly/gcc.sh' >> /etc/crontab"1⤵
- Creates/modifies Cron job
PID:634 -
/bin/sedsed -i "/\\/etc\\/cron.hourly\\/gcc.sh/d" /etc/crontab2⤵
- Creates/modifies Cron job
- Reads runtime system information
PID:635
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/bin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/sbin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/usr/bin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/usr/sbin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/usr/local/bin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/usr/local/sbin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/usr/X11R6/bin/chkconfigchkconfig --add task2.bin1⤵PID:631
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/bin/update-rc.dupdate-rc.d task2.bin defaults1⤵PID:633
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/sbin/update-rc.dupdate-rc.d task2.bin defaults1⤵PID:633
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/usr/bin/update-rc.dupdate-rc.d task2.bin defaults1⤵PID:633
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/usr/sbin/update-rc.dupdate-rc.d task2.bin defaults1⤵
- Modifies rc script
- Write file to user bin folder
PID:633 -
/bin/systemctlsystemctl daemon-reload2⤵
- Reads runtime system information
PID:644
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/usr/bin/omodnamrdd/usr/bin/omodnamrdd "netstat -antop" 6291⤵PID:645
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/usr/bin/omodnamrdd/usr/bin/omodnamrdd sh 6291⤵PID:663
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/usr/bin/omodnamrdd/usr/bin/omodnamrdd "sleep 1" 6291⤵PID:666
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/usr/bin/omodnamrdd/usr/bin/omodnamrdd "netstat -antop" 6291⤵PID:669
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/usr/bin/omodnamrdd/usr/bin/omodnamrdd "route -n" 6291⤵PID:672
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/usr/bin/qxjkipguqi/usr/bin/qxjkipguqi top 6291⤵PID:748
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/usr/bin/qxjkipguqi/usr/bin/qxjkipguqi bash 6291⤵PID:751
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/usr/bin/qxjkipguqi/usr/bin/qxjkipguqi bash 6291⤵PID:754
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/usr/bin/qxjkipguqi/usr/bin/qxjkipguqi ifconfig 6291⤵PID:757
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/usr/bin/qxjkipguqi/usr/bin/qxjkipguqi "ls -la" 6291⤵PID:760
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/usr/bin/qchwcirpsz/usr/bin/qchwcirpsz sh 6291⤵PID:763
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/usr/bin/qchwcirpsz/usr/bin/qchwcirpsz "route -n" 6291⤵PID:766
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/usr/bin/qchwcirpsz/usr/bin/qchwcirpsz whoami 6291⤵PID:769
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/usr/bin/qchwcirpsz/usr/bin/qchwcirpsz uptime 6291⤵PID:772
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/usr/bin/qchwcirpsz/usr/bin/qchwcirpsz "echo \"find\"" 6291⤵PID:775
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/usr/bin/ewiebhwsiq/usr/bin/ewiebhwsiq su 6291⤵PID:778
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/usr/bin/ewiebhwsiq/usr/bin/ewiebhwsiq ifconfig 6291⤵PID:781
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/usr/bin/ewiebhwsiq/usr/bin/ewiebhwsiq ifconfig 6291⤵PID:784
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/usr/bin/ewiebhwsiq/usr/bin/ewiebhwsiq whoami 6291⤵PID:787
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/usr/bin/ewiebhwsiq/usr/bin/ewiebhwsiq "route -n" 6291⤵PID:790
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/usr/bin/hoxeddqmlo/usr/bin/hoxeddqmlo "cat resolv.conf" 6291⤵PID:793
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/usr/bin/hoxeddqmlo/usr/bin/hoxeddqmlo su 6291⤵PID:795
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/usr/bin/hoxeddqmlo/usr/bin/hoxeddqmlo "echo \"find\"" 6291⤵PID:799
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/usr/bin/hoxeddqmlo/usr/bin/hoxeddqmlo pwd 6291⤵PID:802
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/usr/bin/hoxeddqmlo/usr/bin/hoxeddqmlo "route -n" 6291⤵PID:804
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/usr/bin/oqxfoohhcn/usr/bin/oqxfoohhcn "sleep 1" 6291⤵PID:810