Analysis
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max time kernel
0s -
max time network
32s -
platform
linux_amd64 -
resource
ubuntu1804-amd64-en-20211208 -
submitted
08-07-2022 03:50
Static task
static1
Behavioral task
behavioral1
Sample
678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba
Resource
ubuntu1804-amd64-en-20211208
General
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Target
678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba
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Size
611KB
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MD5
42074955ac089af53b6505d47e59ce14
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SHA1
77a71bdb943af64c9b2b8e6dbb39e0fc4d0231e2
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SHA256
678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba
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SHA512
2431f327cfdfce133d14a98919f04560f6f366c5ef2d645b9fcbc0cb15ac667cb51d2915210efc89694555b77077acfc71640cf05dad45e328dca5077c3bb4c9
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 DDoS.XOR Checkin via HTTP
suricata: ET MALWARE DDoS.XOR Checkin via HTTP
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Writes file to system bin folder 1 TTPs 3 IoCs
description ioc /bin/ngjrymcddk /bin/ngjrymcddk /bin/ltcdvonglb /bin/ltcdvonglb /bin/orfiellpxo /bin/orfiellpxo -
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/rc6.d/ /etc/rc6.d/ update-rc.d /etc/rc5.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba /etc/rc5.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba Process not Found /etc/rc0.d/ /etc/rc0.d/ update-rc.d /etc/rc5.d/ /etc/rc5.d/ update-rc.d /etc/rc3.d/ /etc/rc3.d/ update-rc.d /etc/rc4.d/ /etc/rc4.d/ update-rc.d /etc/rc2.d/ /etc/rc2.d/ update-rc.d /etc/rc1.d/ /etc/rc1.d/ update-rc.d /etc/rc1.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba /etc/rc1.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba Process not Found /etc/rc2.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba /etc/rc2.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba Process not Found /etc/rc3.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba /etc/rc3.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba Process not Found /etc/rc4.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba /etc/rc4.d/S90678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba Process not Found -
Write file to user bin folder 1 TTPs 4 IoCs
description ioc Process /usr/sbin/update-rc.d /usr/sbin/update-rc.d update-rc.d /usr/bin/ngjrymcddk /usr/bin/ngjrymcddk Process not Found /usr/bin/ltcdvonglb /usr/bin/ltcdvonglb Process not Found /usr/bin/orfiellpxo /usr/bin/orfiellpxo Process not Found -
Reads runtime system information 7 IoCs
Reads data from /proc virtual filesystem.
description ioc Process /proc/filesystems /proc/filesystems systemctl /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 -
Writes file to tmp directory 3 IoCs
Malware often drops required files in the /tmp directory.
description ioc /tmp/ngjrymcddk /tmp/ngjrymcddk /tmp/ltcdvonglb /tmp/ltcdvonglb /tmp/orfiellpxo /tmp/orfiellpxo
Processes
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./678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba./678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:593
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/bin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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/sbin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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/usr/bin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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/usr/sbin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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/usr/local/bin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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/usr/local/sbin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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/usr/X11R6/bin/chkconfigchkconfig --add 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba1⤵PID:596
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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:599 -
/bin/sedsed -i "/\\/etc\\/cron.hourly\\/gcc.sh/d" /etc/crontab2⤵
- Creates/modifies Cron job
- Reads runtime system information
PID:600
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/bin/update-rc.dupdate-rc.d 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba defaults1⤵PID:598
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/sbin/update-rc.dupdate-rc.d 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba defaults1⤵PID:598
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/usr/bin/update-rc.dupdate-rc.d 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba defaults1⤵PID:598
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/usr/sbin/update-rc.dupdate-rc.d 678b6a591939e73648082897170b62e711a4b0f0b0dbab5fb1dce1a347c166ba defaults1⤵
- Modifies rc script
- Write file to user bin folder
PID:598 -
/bin/systemctlsystemctl daemon-reload2⤵
- Reads runtime system information
PID:604
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/usr/bin/ngjrymcddk/usr/bin/ngjrymcddk "cat resolv.conf" 5941⤵PID:610
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/usr/bin/ngjrymcddk/usr/bin/ngjrymcddk "ifconfig eth0" 5941⤵PID:624
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/usr/bin/ngjrymcddk/usr/bin/ngjrymcddk bash 5941⤵PID:631
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/usr/bin/ngjrymcddk/usr/bin/ngjrymcddk top 5941⤵PID:634
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/usr/bin/ngjrymcddk/usr/bin/ngjrymcddk ls 5941⤵PID:637
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/usr/bin/ltcdvonglb/usr/bin/ltcdvonglb "grep \"A\"" 5941⤵PID:640
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/usr/bin/ltcdvonglb/usr/bin/ltcdvonglb whoami 5941⤵PID:643
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/usr/bin/ltcdvonglb/usr/bin/ltcdvonglb "ps -ef" 5941⤵PID:646
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/usr/bin/ltcdvonglb/usr/bin/ltcdvonglb "netstat -antop" 5941⤵PID:649
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/usr/bin/ltcdvonglb/usr/bin/ltcdvonglb "ifconfig eth0" 5941⤵PID:652
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/usr/bin/orfiellpxo/usr/bin/orfiellpxo whoami 5941⤵PID:655
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/usr/bin/orfiellpxo/usr/bin/orfiellpxo bash 5941⤵PID:658
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/usr/bin/orfiellpxo/usr/bin/orfiellpxo "ifconfig eth0" 5941⤵PID:661
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/usr/bin/orfiellpxo/usr/bin/orfiellpxo "netstat -antop" 5941⤵PID:664
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/usr/bin/orfiellpxo/usr/bin/orfiellpxo bash 5941⤵PID:667
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/usr/bin/wdhixshaoq/usr/bin/wdhixshaoq top 5941⤵PID:670