Overview

overview

10

Static

static

10

.5r3fqt67e...m7.elf

debian-12-armhf

7

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20240418-en
  • resource tags

    arch:armhfimage:debian12-armhf-20240418-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    13-12-2024 14:32

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General

  • Target

    .5r3fqt67ew531has4231.arm7.elf

  • Size

    208KB

  • MD5

    f11b924fc91298f438dc964375faf556

  • SHA1

    3e38f4877672317c01ee8add42c2fee04c8cf9e7

  • SHA256

    63766e5f7840669cff5857f9a2785ca88e1edf2200820d894e6fff1ae7b0cef9

  • SHA512

    d5efb015a5f3222d8263bad6f3e66aa8b0b6b4fd65f90281fc2a860bc0959cb0fc5b74f343e97cf18cbd24c281e51df662265f7c48cdc2dd84565832ff98e3cf

  • SSDEEP

    6144:FXr6Pdmvym2kaOUv2UM6Vu3wRM52B9SWM/RNbBR:F7M4ym2kaOUv2UMhAkP/bH

Score
7/10
defense_evasiondiscovery

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Changes its process name 1 IoCs
  • Reads runtime system information 3 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/.5r3fqt67ew531has4231.arm7.elf
    /tmp/.5r3fqt67ew531has4231.arm7.elf
    1⤵
    • Modifies Watchdog functionality
    • Changes its process name
    • Reads runtime system information
    PID:704
    • /bin/sh
      /bin/sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/.5r3fqt67ew531has4231.arm7.elf bin/watchdog; chmod 777 bin/watchdog"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:707
      • /usr/bin/rm
        rm -rf bin/watchdog
        3⤵
          PID:708
        • /usr/bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:713
        • /usr/bin/mv
          mv /tmp/.5r3fqt67ew531has4231.arm7.elf bin/watchdog
          3⤵
          • Reads runtime system information
          PID:717
        • /usr/bin/chmod
          chmod 777 bin/watchdog
          3⤵
          • File and Directory Permissions Modification
          PID:720

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads