Analysis
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max time kernel
69s -
max time network
148s -
platform
debian-9_mips -
resource
debian9-mipsbe-20240611-en -
resource tags
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submitted
10-10-2024 06:54
General
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Target
na.elf
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Size
82KB
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MD5
03f9679f6fd06a715aaaeae404377f1f
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SHA1
aa5de94feed0092c15fb67269147cc591af82673
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SHA256
1956e72859799497fa6cd30c48279d5b95679d8dca774afbf0d2371dad033538
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SHA512
34159871fef6708847abe2c80de01ef49c2f820fe56f543d5e6a538f894b268ddea98a1ec03fa407dd06ffa9233c385577155249088baa27b8ef55577dea52fe
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SSDEEP
1536:R0trLa97FX3E9zEfdm/7mVY1w0IsgrLF/QEPe4XZn+:R33E9km4Y1w0IsgrRQQeAZn+
Malware Config
Signatures
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Contacts a large (14291) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Deletes system logs 1 TTPs 2 IoCs
Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.
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Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
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Renames itself 1 IoCs
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Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Deletes log files 1 TTPs 2 IoCs
Deletes log files on the system.
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Reads process memory 1 TTPs 1 IoCs
Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.
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Changes its process name 1 IoCs
Processes
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/tmp/na.elf/tmp/na.elf1⤵
- Deletes system logs
- Modifies Watchdog functionality
- Renames itself
- Deletes log files
- Reads process memory
- Changes its process name
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/bin/shsh -c "echo '*/5 * * * * //.ffdfd crontab' | crontab -"2⤵
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