Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20260126-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20260126-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    16/04/2026, 16:47

General

  • Target
    mips.elf
  • Size 98KB
  • Sample260416-varjsaav6v
  • SHA256 bc8297cf7a88c6b679df9c69cbb2aaa2302e19b3622e0cde040a085025760699
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies Watchdog functionality 1 TTPs 2 IoCs

    Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

  • OS Credential Dumping 1 TTPs 1 IoCs

    Adversaries may attempt to dump credentials to use it in password cracking.

  • Traces itself 1 IoCs

    Traces itself to prevent debugging attempts

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads process memory 1 TTPs 30 IoCs

    Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

  • Changes its process name 4 IoCs
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 1 IoCs

    Adversaries may gather information about the network configuration of a system.

Processes

  • /tmp/mips.elf
    /tmp/mips.elf
    1⤵
    • Modifies Watchdog functionality
    • Traces itself
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    • System Network Configuration Discovery
    PID:716
    • /bin/sh
      sh -c "su -c id > /dev/null 2>&1"
      2⤵
        PID:719
        • /bin/su
          su -c id
          3⤵
          • OS Credential Dumping
          • Enumerates kernel/hardware configuration
          • Reads runtime system information
          PID:721
          • /bin/bash
            bash -c id
            4⤵
              PID:732
            • /usr/bin/id
              id
              4⤵
                PID:732

        Network

              MITRE ATT&CK Enterprise v16

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