Analysis
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max time kernel
69s -
max time network
148s -
platform
debian-9_mipsel -
resource
debian9-mipsel-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
125KB
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MD5
2b0caf52e5e7d8967ce6ad262f194966
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SHA1
71cef25f6bc45bdecd8ba77ec5c18a7795cc4bd4
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SHA256
26a240e366d95b7fd6b58e1ac79304334b30a910415a224c31f585f7b49cfaa2
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SHA512
b5d037a7caeeeabbcfc05a9b62c12622870f6d61a3b916ac80f61b0eab22dc274df7d02e8c4ff7334dc9074c17307c4a52ca8c38f1ff1c89f58f7f1ccea7b52d
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SSDEEP
1536:AmbdXGuJxQ1lmoGWGO/+9MBLVKvyPXgQXE9ZTUdY7oew11S07HI:A4XBJxQT5Ge/+ubgYE9G+fwnS07
Malware Config
Signatures
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Contacts a large (40810) 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 2 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