Analysis
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max time kernel
119s -
max time network
61s -
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
29-08-2024 18:06
Static task
static1
Behavioral task
behavioral1
Sample
i
Resource
debian9-mipsbe-20240418-en
General
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Target
i
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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
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SSDEEP
1536:yYI0ARqw1qAEW67UIWi7M8gmfmJo0WgswnD6Efyq8PxlRkp2K3/J1V+uBNu:yYI0ARqw1qAEv7UIFM8oJorFquyjkRks
Malware Config
Signatures
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Deletes itself 1 IoCs
Processes:
pid 738 -
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 -
Changes its process name 1 IoCs
Processes:
description ioc pid Changes the process name, possibly in an attempt to hide itself telnetd 738 -
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/route i File opened for reading /proc/net/tcp i File opened for reading /proc/net/tcp6 i -
Reads runtime system information 64 IoCs
Reads data from /proc virtual filesystem.
Processes:
idescription ioc process File opened for reading /proc/72/cmdline i File opened for reading /proc/16/cmdline i File opened for reading /proc/13/cmdline i File opened for reading /proc/11/cmdline i File opened for reading /proc/716/cmdline i File opened for reading /proc/334/fd i File opened for reading /proc/255/fd i File opened for reading /proc/153/fd i File opened for reading /proc/1/cmdline i File opened for reading /proc/8/cmdline i File opened for reading /proc/6/cmdline i File opened for reading /proc/738/cmdline i File opened for reading /proc/680/fd i File opened for reading /proc/74/cmdline i File opened for reading /proc/36/cmdline i File opened for reading /proc/161/cmdline i File opened for reading /proc/3/cmdline i File opened for reading /proc/175/fd i File opened for reading /proc/12/cmdline i File opened for reading /proc/7/cmdline i File opened for reading /proc/745/cmdline i File opened for reading /proc/745/fd i File opened for reading /proc/738/fd i File opened for reading /proc/734/cmdline i File opened for reading /proc/73/cmdline i File opened for reading /proc/19/cmdline i File opened for reading /proc/732/cmdline i File opened for reading /proc/716/fd i File opened for reading /proc/381/fd i File opened for reading /proc/75/cmdline i File opened for reading /proc/17/cmdline i File opened for reading /proc/14/cmdline i File opened for reading /proc/1/fd i File opened for reading /proc/110/cmdline i File opened for reading /proc/82/cmdline i File opened for reading /proc/76/cmdline i File opened for reading /proc/37/cmdline i File opened for reading /proc/236/cmdline i File opened for reading /proc/81/cmdline i File opened for reading /proc/15/cmdline i File opened for reading /proc/5/cmdline i File opened for reading /proc/795/cmdline i File opened for reading /proc/674/cmdline i File opened for reading /proc/384/cmdline i File opened for reading /proc/255/cmdline i File opened for reading /proc/153/cmdline i File opened for reading /proc/126/cmdline i File opened for reading /proc/10/cmdline i File opened for reading /proc/2/cmdline i File opened for reading /proc/727/fd i File opened for reading /proc/681/fd i File opened for reading /proc/22/cmdline i File opened for reading /proc/21/cmdline i File opened for reading /proc/727/cmdline i File opened for reading /proc/362/fd i File opened for reading /proc/332/fd i File opened for reading /proc/24/cmdline i File opened for reading /proc/18/cmdline i File opened for reading /proc/674/fd i File opened for reading /proc/381/cmdline i File opened for reading /proc/364/fd i File opened for reading /proc/362/cmdline i File opened for reading /proc/9/cmdline i File opened for reading /proc/795/fd i -
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/fifo i
Processes
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/tmp/i/tmp/i1⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Reads system routing table
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
PID:735 -
/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"2⤵PID:796
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 23 -j DROP3⤵PID:797
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"2⤵PID:804
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 7547 -j DROP3⤵PID:806
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"2⤵PID:808
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 5555 -j DROP3⤵PID:810
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/bin/shsh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"2⤵PID:812
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/sbin/iptablesiptables -A INPUT -p tcp --destination-port 5358 -j DROP3⤵PID:813
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/bin/shsh -c "iptables -D INPUT -j CWMP_CR"2⤵PID:814
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/sbin/iptablesiptables -D INPUT -j CWMP_CR3⤵PID:816
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/bin/shsh -c "iptables -X CWMP_CR"2⤵PID:817
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/sbin/iptablesiptables -X CWMP_CR3⤵PID:819
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/bin/shsh -c "iptables -I INPUT -p udp --dport 3027 -j ACCEPT"2⤵PID:820
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/sbin/iptablesiptables -I INPUT -p udp --dport 3027 -j ACCEPT3⤵PID:821