Resubmissions
12-05-2022 14:20
220512-rnmk7sbaej 917-08-2021 14:22
210817-97ec9rpgl2 916-08-2021 19:38
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210524-ffnryqm26s 919-04-2021 10:44
210419-xv7zez83hj 9Analysis
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max time kernel
0s -
max time network
80s -
platform
linux_mips -
resource
debian9-mipsbe-en-20211208 -
submitted
12-05-2022 14:20
Static task
static1
Behavioral task
behavioral1
Sample
020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0
Resource
debian9-mipsbe-en-20211208
General
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Target
020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0
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Size
83KB
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MD5
5377e8f2ebdb280216c37a6195da9d6c
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SHA1
b54c705193b7963a0d40699a91cdb34fedecbe88
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SHA256
020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0
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SHA512
65e5aec56ddde56f245a20f88553d2f76bd7dd8e1940e9d49637d51a868fe73003b8a95fffeb9481110579f6ee4790fc9af1668d435930d4c01b116490908eed
Malware Config
Signatures
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Modifies the Watchdog daemon 1 TTPs
Malware like Mirai modify the Watchdog to prevent it restarting an infected system.
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Modifies hosts file 1 IoCs
Adds to hosts file used for mapping hosts to IP addresses.
Processes:
description ioc /etc/hosts /etc/hosts -
Writes DNS configuration 1 TTPs 1 IoCs
Writes data to DNS resolver config file.
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Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
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Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.
Processes:
description ioc /proc/net/route /proc/net/route -
Reads system network configuration 1 TTPs 3 IoCs
Uses contents of /proc filesystem to enumerate network settings.
Processes:
description ioc /proc/net/tcp6 /proc/net/tcp6 /proc/net/route /proc/net/route /proc/net/tcp /proc/net/tcp -
Reads runtime system information 64 IoCs
Reads data from /proc virtual filesystem.
Processes:
description ioc /proc/319/cmdline /proc/319/cmdline /proc/294/cmdline /proc/294/cmdline /proc/293/cmdline /proc/293/cmdline /proc/248/cmdline /proc/248/cmdline /proc/247/cmdline /proc/247/cmdline /proc/71/cmdline /proc/71/cmdline /proc/22/cmdline /proc/22/cmdline /proc/322/cmdline /proc/322/cmdline /proc/1/fd /proc/1/fd /proc/7/cmdline /proc/7/cmdline /proc/76/cmdline /proc/76/cmdline /proc/74/cmdline /proc/74/cmdline /proc/21/cmdline /proc/21/cmdline /proc/3/cmdline /proc/3/cmdline /proc/235/fd /proc/235/fd /proc/215/cmdline /proc/215/cmdline /proc/157/cmdline /proc/157/cmdline /proc/36/cmdline /proc/36/cmdline /proc/19/cmdline /proc/19/cmdline /proc/282/fd /proc/282/fd /proc/206/fd /proc/206/fd /proc/73/cmdline /proc/73/cmdline /proc/13/cmdline /proc/13/cmdline /proc/9/cmdline /proc/9/cmdline /proc/253/fd /proc/253/fd /proc/247/fd /proc/247/fd /proc/236/cmdline /proc/236/cmdline /proc/78/cmdline /proc/78/cmdline /proc/18/cmdline /proc/18/cmdline /proc/15/cmdline /proc/15/cmdline /proc/12/cmdline /proc/12/cmdline /proc/272/cmdline /proc/272/cmdline /proc/11/cmdline /proc/11/cmdline /proc/2/cmdline /proc/2/cmdline /proc/236/fd /proc/236/fd /proc/77/cmdline /proc/77/cmdline /proc/75/cmdline /proc/75/cmdline /proc/37/cmdline /proc/37/cmdline /proc/6/cmdline /proc/6/cmdline /proc/282/cmdline /proc/282/cmdline /proc/272/fd /proc/272/fd /proc/219/cmdline /proc/219/cmdline /proc/135/cmdline /proc/135/cmdline /proc/81/cmdline /proc/81/cmdline /proc/24/cmdline /proc/24/cmdline /proc/322/fd /proc/322/fd /proc/253/cmdline /proc/253/cmdline /proc/135/fd /proc/135/fd /proc/72/cmdline /proc/72/cmdline /proc/321/cmdline /proc/321/cmdline /proc/286/fd /proc/286/fd /proc/217/fd /proc/217/fd /proc/17/cmdline /proc/17/cmdline /proc/16/cmdline /proc/16/cmdline /proc/14/cmdline /proc/14/cmdline /proc/293/fd /proc/293/fd /proc/23/cmdline /proc/23/cmdline /proc/69/cmdline /proc/69/cmdline /proc/20/cmdline /proc/20/cmdline /proc/5/cmdline /proc/5/cmdline /proc/235/cmdline /proc/235/cmdline /proc/206/cmdline /proc/206/cmdline /proc/155/cmdline /proc/155/cmdline /proc/155/fd /proc/155/fd -
Writes file to tmp directory 2 IoCs
Malware often drops required files in the /tmp directory.
Processes:
description ioc /tmp/ftpupdate.sh /tmp/ftpupdate.sh /tmp/ftpupload.sh /tmp/ftpupload.sh
Processes
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./020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0./020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f01⤵PID:320
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"1⤵PID:323
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 23 -j DROP2⤵PID:325
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"1⤵PID:333
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 7547 -j DROP2⤵PID:334
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"1⤵PID:335
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 5555 -j DROP2⤵PID:336
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"1⤵PID:337
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 5358 -j DROP2⤵PID:338
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/bin/shsh -c "iptables -D INPUT -j CWMP_CR"1⤵PID:339
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/sbin/iptablesiptables -D INPUT -j CWMP_CR2⤵PID:340
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/bin/shsh -c "iptables -X CWMP_CR"1⤵PID:341
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/sbin/iptablesiptables -X CWMP_CR2⤵PID:342
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/bin/shsh -c "iptables -I INPUT -p udp --dport 60481 -j ACCEPT"1⤵PID:343
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/sbin/iptablesiptables -I INPUT -p udp --dport 60481 -j ACCEPT2⤵PID:344
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