Overview

overview

10

Static

static

10

splarm5.elf

debian-9-armhf

9

Analysis

  • max time kernel
    147s
  • max time network
    159s
  • 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, 11:57

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General

  • Target

    splarm5.elf

  • Size

    55KB

  • MD5

    2c50e901d5c7f4f142f37de3b2db9e0c

  • SHA1

    d9ee27dedfc686b44b33b5a968624fc51326301d

  • SHA256

    df42267c56c5e4d6980430310822574c57c1a50267ae552131b20f08539ee9a4

  • SHA512

    a1bfb4b1272ce3e830db6d9a630525fd7a8d2e14a44cd604a2a2f6ffb4194d43bf82aa156ddac0cf50fa3bf65ec00687dd97dc7b33122bfa42d3a30765567ac0

  • SSDEEP

    1536:5lCCL9C0ibysVIwfcya5FKtt5ATYUIDV+5:5lCCcPraetbM3IDVk

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (66569) amount of remote hosts 1 TTPs

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

    discovery
  • Creates a large amount of network flows 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.

  • 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/splarm5.elf
    /tmp/splarm5.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:651

Network

MITRE ATT&CK Enterprise v15

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