Overview

overview

10

Static

static

10

nabarm5.elf

debian-9-armhf

9

Analysis

  • max time kernel
    124s
  • max time network
    153s
  • 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
    10/03/2025, 00:12

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General

  • Target

    nabarm5.elf

  • Size

    36KB

  • MD5

    60dcb6b17e4c2bfe8538c546e0891790

  • SHA1

    fa479fa7ca6381d2ffeea8ae216c0fc599069850

  • SHA256

    b97d3b2d55c0a8fc873da4accd60f26d45031d4a1f45d9cefdac7350bba9dc35

  • SHA512

    c3c8381f3ebf9a281b706d144219fb392df46756f9f40f0526fed0ff0c9e9e67e5073f43a14b1139991313d615cde048ef0288c63a5cfc6e44a19249eaf9603a

  • SSDEEP

    768:6tpf5yjepoCyNjwxBbPct5sUIlP4XEA7bNPMfA9tbU6IL4C:2f5yC+NUxB7ct5kPQEmMI9tJ/

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (14510) 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/nabarm5.elf
    /tmp/nabarm5.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:650

Network

MITRE ATT&CK Enterprise v15

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