Analysis
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max time kernel
80s -
max time network
40s -
platform
ubuntu-18.04_amd64 -
resource
ubuntu1804-amd64-20221111-en -
resource tags
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submitted
20-04-2023 08:22
General
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Target
a09
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Size
611KB
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MD5
d1b5b4b4b5a118e384c7ff487e14ac3f
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SHA1
038b7e9406fe5cb0a0be8f95ac935923c6d83c28
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SHA256
0a312a4154dcec2bc6ce1d3b51c037b122ace5848ec99c2b861ab6124addae9b
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SHA512
20885f782beeca1712924d6dec7fa474fb2fa7f926d7cbdbdd5f7fa18f6a3ac2bcd5dbd771a80c13c3403cbad05f2cda86ffefdc8170d6cc0f0b4b01a5baec74
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SSDEEP
12288:UB1tATMVAqnf+ExxBHYpmA38X8LYkCW6TiLx6yB1/iGK4UlUuTh1AG:UB1BVpmExDYp38X8LYTWhLfNiGQl/91h
Score
9/10
Malware Config
Signatures
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Writes file to system bin folder 1 TTPs 4 IoCs
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Creates/modifies Cron job 1 TTPs 2 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
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Modifies init.d 1 TTPs 1 IoCs
Adds/modifies system service, likely for persistence.
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Modifies rc script 1 TTPs 17 IoCs
Adding/modifying system rc scripts is a common persistence mechanism.
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Write file to user bin folder 1 TTPs 6 IoCs
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Reads runtime system information 7 IoCs
Reads data from /proc virtual filesystem.
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Writes file to tmp directory 4 IoCs
Malware often drops required files in the /tmp directory.
Processes
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/tmp/a09/tmp/a091⤵
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/bin/chkconfigchkconfig --add a091⤵
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/sbin/chkconfigchkconfig --add a091⤵
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/usr/bin/chkconfigchkconfig --add a091⤵
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/usr/sbin/chkconfigchkconfig --add a091⤵
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/usr/local/bin/chkconfigchkconfig --add a091⤵
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/usr/local/sbin/chkconfigchkconfig --add a091⤵
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/usr/X11R6/bin/chkconfigchkconfig --add a091⤵
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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
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/bin/sedsed -i "/\\/etc\\/cron.hourly\\/gcc.sh/d" /etc/crontab2⤵
- Creates/modifies Cron job
- Reads runtime system information
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/bin/update-rc.dupdate-rc.d a09 defaults1⤵
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/sbin/update-rc.dupdate-rc.d a09 defaults1⤵
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/usr/bin/update-rc.dupdate-rc.d a09 defaults1⤵
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/usr/sbin/update-rc.dupdate-rc.d a09 defaults1⤵
- Modifies rc script
- Write file to user bin folder
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/bin/systemctlsystemctl daemon-reload2⤵
- Reads runtime system information
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/usr/bin/udywhckwbr/usr/bin/udywhckwbr sh 6021⤵
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/usr/bin/udywhckwbr/usr/bin/udywhckwbr uptime 6021⤵
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/usr/bin/udywhckwbr/usr/bin/udywhckwbr "netstat -an" 6021⤵
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/usr/bin/udywhckwbr/usr/bin/udywhckwbr whoami 6021⤵
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/usr/bin/udywhckwbr/usr/bin/udywhckwbr su 6021⤵
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/usr/bin/ocoeofccaq/usr/bin/ocoeofccaq bash 6021⤵
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/usr/bin/ocoeofccaq/usr/bin/ocoeofccaq su 6021⤵
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/usr/bin/ocoeofccaq/usr/bin/ocoeofccaq whoami 6021⤵
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/usr/bin/ocoeofccaq/usr/bin/ocoeofccaq who 6021⤵
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/usr/bin/ocoeofccaq/usr/bin/ocoeofccaq ls 6021⤵
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/usr/bin/volvurjkiq/usr/bin/volvurjkiq "grep \"A\"" 6021⤵
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/usr/bin/volvurjkiq/usr/bin/volvurjkiq uptime 6021⤵
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/usr/bin/volvurjkiq/usr/bin/volvurjkiq uptime 6021⤵
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/usr/bin/volvurjkiq/usr/bin/volvurjkiq "ps -ef" 6021⤵
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/usr/bin/qajarxjvzp/usr/bin/qajarxjvzp uptime 6021⤵
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/usr/bin/qajarxjvzp/usr/bin/qajarxjvzp su 6021⤵
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/usr/bin/qajarxjvzp/usr/bin/qajarxjvzp "ps -ef" 6021⤵
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/usr/bin/qajarxjvzp/usr/bin/qajarxjvzp sh 6021⤵
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/usr/bin/qajarxjvzp/usr/bin/qajarxjvzp gnome-terminal 6021⤵
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/usr/bin/atduvidcfo/usr/bin/atduvidcfo ls 6021⤵
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/usr/bin/atduvidcfo/usr/bin/atduvidcfo id 6021⤵
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/usr/bin/atduvidcfo/usr/bin/atduvidcfo pwd 6021⤵
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/usr/bin/atduvidcfo/usr/bin/atduvidcfo id 6021⤵
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/usr/bin/atduvidcfo/usr/bin/atduvidcfo "netstat -an" 6021⤵
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/usr/bin/ommvmlljsd/usr/bin/ommvmlljsd "ls -la" 6021⤵