Overview

overview

10

Static

static

10

arm7.elf

debian-12-armhf

9

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20240221-en
  • resource tags

    arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    16-12-2024 09:23

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General

  • Target

    arm7.elf

  • Size

    147KB

  • MD5

    a5a46ab834e2fd4ea2e14dbfde7c0517

  • SHA1

    656009fcd4774af8cc966ae78dc2b03888ffbc0f

  • SHA256

    a9b447db9ccc8d61a3f762d7095e8a88014b20cac85bdc63849ea845d7b74d57

  • SHA512

    d7641058ee1d618e75cd54ab1e81026872e9854d728131e8416edab733917512a88e42428698aa4ebf9159237856e91ac446673160d1b4fb0968fbc7bb3fe900

  • SSDEEP

    3072:eJLce5p0pHdiSEaaHbz4NrA/Jt5IQ1F9kXMk/M/983kY:eJLcH9EaaHbz4NU/JrH9kXMcM/9IkY

Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (36875) 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
  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Changes its process name 1 IoCs
  • Reads runtime system information 2 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/arm7.elf
    /tmp/arm7.elf
    1⤵
    • Changes its process name
    PID:708
    • /bin/sh
      /bin/sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/arm7.elf bin/watchdog; chmod 777 bin/watchdog"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:709
      • /usr/bin/rm
        rm -rf bin/watchdog
        3⤵
          PID:713
        • /usr/bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:716
        • /usr/bin/mv
          mv /tmp/arm7.elf bin/watchdog
          3⤵
          • Reads runtime system information
          PID:721
        • /usr/bin/chmod
          chmod 777 bin/watchdog
          3⤵
          • File and Directory Permissions Modification
          PID:723

    Network

    MITRE ATT&CK Enterprise v15

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