Analysis

  • max time kernel
    150s
  • max time network
    178s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20240221-en
  • resource tags

    arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    12/10/2024, 15:08

General

  • Target

    na.elf

  • Size

    148KB

  • MD5

    9e9f6a4ff9c1782a822df602dd5e364b

  • SHA1

    5617f45e06d5757c9e745afedbd85e77d83681fd

  • SHA256

    842ef514a2b5f05b415b85d02e5f62cdda1da839a0c7d9016d475926de36c4cb

  • SHA512

    c2968a90c3350593d1b348016b08655c47c435a783a0f0d0ef15185f156da1725c6a43008323e86f50a3b9e8bd5b50a2cfcb0e61e00997feebb74a38ef091c1a

  • SSDEEP

    3072:zv77j7mI47aSDV2u4AUDjNLPMvEn3ExYM/9QzjTf:73Oj7aSDV2uJUDpQEn3EmM/9QvTf

Malware Config

Signatures

  • Contacts a large (77033) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Reads process memory 1 TTPs 26 IoCs

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

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

    Uses contents of /proc filesystem to enumerate network settings.

Processes

  • /tmp/na.elf
    /tmp/na.elf
    1⤵
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    PID:709

Network

        MITRE ATT&CK Enterprise v15

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