Overview

overview

10

Static

static

10

nabarm7.elf

debian-9-armhf

9

Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    07/03/2025, 12:16

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General

  • Target

    nabarm7.elf

  • Size

    60KB

  • MD5

    f4c77d37de1d01ab7014b3c518dfe1ad

  • SHA1

    348b990203bfa4ff2553eeed79be06ae3f329ca5

  • SHA256

    564099ffa57e8f1c182b7696b8815f8bee08e485c08f61f2936447ee955910c0

  • SHA512

    3d47556832dd4e939720eb1109213eccd9ad37ee0eada7d76f8be3e4df0eb9006e9315867875ba21c9146d255842c2877aebcfaebbf4a973f0f5929d022b46c0

  • SSDEEP

    1536:l5nK8qV5+me/npejsxktsVuqTsrJsOqZllsSi5uy/K:FqV5+miQjsxkt8uqTsrJsqduyS

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (14892) amount of remote hosts 1 TTPs

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

    discovery
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Renames itself 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

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

  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads process memory 1 TTPs 64 IoCs

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

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

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery

Processes

  • /tmp/nabarm7.elf
    /tmp/nabarm7.elf
    1⤵
    • Modifies Watchdog functionality
    • Renames itself
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    PID:648

Network

MITRE ATT&CK Enterprise v15

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