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General

  • Target

    jklarm7.elf

  • Size

    82KB

  • Sample

    250310-2qkvha1mz3

  • MD5

    a9675614a267473cb83e195d9074a067

  • SHA1

    a4d148cf841fc2b84c8bb3dd322e40f601532875

  • SHA256

    fe4e8d464b7849a5483782d0c47e53deaf199e284badad12ed98ca79e47a79d9

  • SHA512

    8adcc5df013328218823d3310bcc4f27f6e1e9e51de2e7ecd5521873f5ac6cc2315f9136e1599f1da4114e65eaed23449e78f9ce04062243aa8ec793086b1c28

  • SSDEEP

    1536:BRn0RQX3XBK48wT+4D3H2qFzu6gRGrkesfzx3n7etZNlncUGqDllWYi/XRAsmzXT:XXnBA4D3HLFzut/euzN7etZNlncUSpXk

Malware Config

Extracted

Family

mirai

Botnet

BOTNET

Targets

    • Target

      jklarm7.elf

    • Size

      82KB

    • MD5

      a9675614a267473cb83e195d9074a067

    • SHA1

      a4d148cf841fc2b84c8bb3dd322e40f601532875

    • SHA256

      fe4e8d464b7849a5483782d0c47e53deaf199e284badad12ed98ca79e47a79d9

    • SHA512

      8adcc5df013328218823d3310bcc4f27f6e1e9e51de2e7ecd5521873f5ac6cc2315f9136e1599f1da4114e65eaed23449e78f9ce04062243aa8ec793086b1c28

    • SSDEEP

      1536:BRn0RQX3XBK48wT+4D3H2qFzu6gRGrkesfzx3n7etZNlncUGqDllWYi/XRAsmzXT:XXnBA4D3HLFzut/euzN7etZNlncUSpXk

    • Contacts a large (107932) amount of remote hosts

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

    • Creates a large amount of network flows

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

    • Modifies Watchdog functionality

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

    • Renames itself

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Reads process memory

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

MITRE ATT&CK Enterprise v15

Tasks