Analysis
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max time kernel
12s -
max time network
12s -
platform
debian-9_mips -
resource
debian9-mipsbe-20240418-en -
resource tags
arch:mipsimage:debian9-mipsbe-20240418-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem -
submitted
22-07-2024 02:03
Behavioral task
behavioral1
Sample
i
Resource
debian9-mipsbe-20240418-en
General
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Target
i
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Size
132KB
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MD5
59ce0baba11893f90527fc951ac69912
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SHA1
5857a7dd621c4c3ebb0b5a3bec915d409f70d39f
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SHA256
4293c1d8574dc87c58360d6bac3daa182f64f7785c9d41da5e0741d2b1817fc7
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SHA512
c5b12797b477e5e5964a78766bb40b1c0d9fdfb8eef1f9aee3df451e3441a40c61d325bf400ba51048811b68e1c70a95f15e4166b7a65a4eca0c624864328647
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SSDEEP
3072:phNlHuBafLeBtfCzpta8xlBIOdVo3/4sxLJ10xioP:p3lOYoaja8xzx/0wsxzSi2
Malware Config
Signatures
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Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
Processes:
idescription ioc process File opened for modification /dev/watchdog i File opened for modification /dev/misc/watchdog i -
Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
Processes:
idescription ioc process File opened for reading /proc/net/tcp i -
Enumerates running processes
Discovers information about currently running processes on the system
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Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.
Processes:
idescription ioc process File opened for reading /proc/net/route i -
Writes file to system bin folder 1 TTPs 2 IoCs
Processes:
idescription ioc process File opened for modification /bin/watchdog i File opened for modification /sbin/watchdog i -
Changes its process name 1 IoCs
Processes:
description ioc pid Changes the process name, possibly in an attempt to hide itself sshd 713 -
Reads system network configuration 1 TTPs 3 IoCs
Uses contents of /proc filesystem to enumerate network settings.
Processes:
idescription ioc process File opened for reading /proc/net/raw i File opened for reading /proc/net/route i File opened for reading /proc/net/tcp i -
Reads runtime system information 64 IoCs
Reads data from /proc virtual filesystem.
Processes:
killallidescription ioc process File opened for reading /proc/10/stat killall File opened for reading /proc/11/stat killall File opened for reading /proc/14/stat killall File opened for reading /proc/15/stat killall File opened for reading /proc/110/stat killall File opened for reading /proc/388/stat killall File opened for reading /proc/671/stat killall File opened for reading /proc/1/stat killall File opened for reading /proc/2/stat killall File opened for reading /proc/21/stat killall File opened for reading /proc/79/stat killall File opened for reading /proc/16/stat killall File opened for reading /proc/69/stat killall File opened for reading /proc/384/stat killall File opened for reading /proc/429/stat killall File opened for reading /proc/686/stat killall File opened for reading /proc/708/stat killall File opened for reading /proc/5/stat killall File opened for reading /proc/704/cmdline killall File opened for reading /proc/self/exe i File opened for reading /proc/8/stat killall File opened for reading /proc/17/stat killall File opened for reading /proc/82/stat killall File opened for reading /proc/383/stat killall File opened for reading /proc/717/stat killall File opened for reading /proc/filesystems killall File opened for reading /proc/13/stat killall File opened for reading /proc/19/stat killall File opened for reading /proc/126/stat killall File opened for reading /proc/127/cmdline killall File opened for reading /proc/680/stat killall File opened for reading /proc/713/stat killall File opened for reading /proc/73/stat killall File opened for reading /proc/75/stat killall File opened for reading /proc/703/stat killall File opened for reading /proc/703/cmdline killall File opened for reading /proc/718/stat killall File opened for reading /proc/37/stat killall File opened for reading /proc/674/stat killall File opened for reading /proc/18/stat killall File opened for reading /proc/76/stat killall File opened for reading /proc/154/cmdline killall File opened for reading /proc/9/stat killall File opened for reading /proc/81/stat killall File opened for reading /proc/366/stat killall File opened for reading /proc/12/stat killall File opened for reading /proc/20/stat killall File opened for reading /proc/77/stat killall File opened for reading /proc/3/stat killall File opened for reading /proc/158/stat killall File opened for reading /proc/234/stat killall File opened for reading /proc/248/stat killall File opened for reading /proc/704/stat killall File opened for reading /proc/4/stat killall File opened for reading /proc/24/stat killall File opened for reading /proc/71/stat killall File opened for reading /proc/333/stat killall File opened for reading /proc/367/stat killall File opened for reading /proc/709/stat killall File opened for reading /proc/36/stat killall File opened for reading /proc/127/stat killall File opened for reading /proc/154/stat killall File opened for reading /proc/175/stat killall File opened for reading /proc/685/stat killall -
Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.
Processes:
idescription ioc process File opened for modification /tmp/.ips i
Processes
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/tmp/i/tmp/i1⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Reads system routing table
- Writes file to system bin folder
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
PID:711 -
/bin/shsh -c "killall -9 telnetd utelnetd scfgmgr"2⤵PID:715
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/usr/bin/killallkillall -9 telnetd utelnetd scfgmgr3⤵
- Reads runtime system information
PID:716
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