Analysis
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max time kernel
0s -
max time network
30s -
platform
linux_amd64 -
resource
ubuntu1804-amd64-en-20211208 -
submitted
08-07-2022 00:10
Static task
static1
Behavioral task
behavioral1
Sample
4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c
Resource
ubuntu1804-amd64-en-20211208
General
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Target
4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c
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Size
535KB
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MD5
e2fb88db7d32254572010baad88f8bfb
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SHA1
6cbbe3ea21235b74584da8af51abd19dd26e3598
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SHA256
4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c
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SHA512
ac4089b9fe3e84e7c1fb4c10a8be26e7ddded4ffcc5f793a38c622c6bb1c81bc6165f9a4e4c0801f891fd59725e8557295593ebf6783e4b01e78657a477653db
Malware Config
Signatures
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suricata: ET MALWARE DDoS.XOR Checkin
suricata: ET MALWARE DDoS.XOR Checkin
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suricata: ET MALWARE Likely Linux/Xorddos.F DDoS Attack Participation (aa.hostasa.org)
suricata: ET MALWARE Likely Linux/Xorddos.F DDoS Attack Participation (aa.hostasa.org)
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Writes file to system bin folder 1 TTPs 3 IoCs
description ioc /bin/qtbomoctyk /bin/qtbomoctyk /bin/dpfabvdrsp /bin/dpfabvdrsp /bin/lmbvjfrbai /bin/lmbvjfrbai -
Creates/modifies Cron job 1 TTPs 2 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
description ioc Process /etc/crontab /etc/crontab sed /etc/crontab /etc/crontab sh -
Modifies rc script 1 TTPs 12 IoCs
Adding/modifying system rc scripts is a common persistence mechanism.
description ioc Process /etc/rc1.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c /etc/rc1.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c Process not Found /etc/rc3.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c /etc/rc3.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c Process not Found /etc/rc4.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c /etc/rc4.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c Process not Found /etc/rc5.d/ /etc/rc5.d/ update-rc.d /etc/rc2.d/ /etc/rc2.d/ update-rc.d /etc/rc1.d/ /etc/rc1.d/ update-rc.d /etc/rc2.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c /etc/rc2.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c Process not Found /etc/rc5.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c /etc/rc5.d/S904307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c Process not Found /etc/rc0.d/ /etc/rc0.d/ update-rc.d /etc/rc4.d/ /etc/rc4.d/ update-rc.d /etc/rc3.d/ /etc/rc3.d/ update-rc.d /etc/rc6.d/ /etc/rc6.d/ update-rc.d -
Write file to user bin folder 1 TTPs 4 IoCs
description ioc Process /usr/bin/dpfabvdrsp /usr/bin/dpfabvdrsp Process not Found /usr/bin/lmbvjfrbai /usr/bin/lmbvjfrbai Process not Found /usr/sbin/update-rc.d /usr/sbin/update-rc.d update-rc.d /usr/bin/qtbomoctyk /usr/bin/qtbomoctyk Process not Found -
Reads runtime system information 7 IoCs
Reads data from /proc virtual filesystem.
description ioc Process /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 /proc/self/stat /proc/self/stat systemctl /proc/sys/kernel/osrelease /proc/sys/kernel/osrelease systemctl -
Writes file to tmp directory 3 IoCs
Malware often drops required files in the /tmp directory.
description ioc /tmp/qtbomoctyk /tmp/qtbomoctyk /tmp/dpfabvdrsp /tmp/dpfabvdrsp /tmp/lmbvjfrbai /tmp/lmbvjfrbai
Processes
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./4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c./4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:580
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/bin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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/sbin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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/usr/bin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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/usr/sbin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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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:587 -
/bin/sedsed -i "/\\/etc\\/cron.hourly\\/gcc.sh/d" /etc/crontab2⤵
- Creates/modifies Cron job
- Reads runtime system information
PID:588
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/usr/local/bin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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/usr/local/sbin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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/usr/X11R6/bin/chkconfigchkconfig --add 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c1⤵PID:584
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/bin/update-rc.dupdate-rc.d 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c defaults1⤵PID:586
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/sbin/update-rc.dupdate-rc.d 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c defaults1⤵PID:586
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/usr/bin/update-rc.dupdate-rc.d 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c defaults1⤵PID:586
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/usr/sbin/update-rc.dupdate-rc.d 4307f6183996648a699e8ceb71427c0aeb6cbc9b054344022578659e7bd89f6c defaults1⤵
- Modifies rc script
- Write file to user bin folder
PID:586 -
/bin/systemctlsystemctl daemon-reload2⤵
- Reads runtime system information
PID:591
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/usr/bin/qtbomoctyk/usr/bin/qtbomoctyk "cat resolv.conf" 5821⤵PID:594
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/usr/bin/qtbomoctyk/usr/bin/qtbomoctyk who 5821⤵PID:612
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/usr/bin/qtbomoctyk/usr/bin/qtbomoctyk "ifconfig eth0" 5821⤵PID:615
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/usr/bin/qtbomoctyk/usr/bin/qtbomoctyk su 5821⤵PID:622
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/usr/bin/qtbomoctyk/usr/bin/qtbomoctyk "cat resolv.conf" 5821⤵PID:625
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/usr/bin/dpfabvdrsp/usr/bin/dpfabvdrsp "sleep 1" 5821⤵PID:628
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/usr/bin/dpfabvdrsp/usr/bin/dpfabvdrsp "route -n" 5821⤵PID:631
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/usr/bin/dpfabvdrsp/usr/bin/dpfabvdrsp "grep \"A\"" 5821⤵PID:634
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/usr/bin/dpfabvdrsp/usr/bin/dpfabvdrsp "ps -ef" 5821⤵PID:637
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/usr/bin/dpfabvdrsp/usr/bin/dpfabvdrsp "ifconfig eth0" 5821⤵PID:640
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/usr/bin/lmbvjfrbai/usr/bin/lmbvjfrbai "netstat -antop" 5821⤵PID:643
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/usr/bin/lmbvjfrbai/usr/bin/lmbvjfrbai "ifconfig eth0" 5821⤵PID:646
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/usr/bin/lmbvjfrbai/usr/bin/lmbvjfrbai gnome-terminal 5821⤵PID:649
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/usr/bin/lmbvjfrbai/usr/bin/lmbvjfrbai bash 5821⤵PID:652
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/usr/bin/lmbvjfrbai/usr/bin/lmbvjfrbai ls 5821⤵PID:655
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/usr/bin/kvbaqfxgya/usr/bin/kvbaqfxgya uptime 5821⤵PID:658