Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240418-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    24/03/2025, 11:34

General

  • Target

    g4za.arm.elf

  • Size

    86KB

  • MD5

    ffe5eaa7de5806728cc8832cf8355aac

  • SHA1

    4c4ca7084cea4f632b6303f540d79ad68d4cd6df

  • SHA256

    f0fe0f22eed4d6f489e626c4b224287063cc78c0bc05552d0df0f87849192d12

  • SHA512

    8b23f0dd80f42b346202d1aa9368201d115fb193f24d0b5f7b402972d4a9ac4540987698f49cb2822ac63e34a77cf9bdfa005f414e7fb9a156498a4710fc5afc

  • SSDEEP

    1536:j01gPv9OCDGQvZUsKmqx33eZtU5vWmFPNeiiW/cHvgi:j01gPv9sVx3wgFPNF1cl

Malware Config

Signatures

  • Contacts a large (127997) 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 27 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/g4za.arm.elf
    /tmp/g4za.arm.elf
    1⤵
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    PID:645

Network

MITRE ATT&CK Enterprise v15

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