Overview

overview

10

Static

static

10

.5r3fqt67e...sl.elf

debian-12-mipsel

9

Analysis

  • max time kernel
    153s
  • max time network
    166s
  • platform
    debian-12_mipsel
  • resource
    debian12-mipsel-20240221-en
  • resource tags

    arch:mipselimage:debian12-mipsel-20240221-enkernel:6.1.0-17-4kc-maltalocale:en-usos:debian-12-mipselsystem
  • submitted
    10/12/2024, 17:12

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General

  • Target

    .5r3fqt67ew531has4231.mpsl.elf

  • Size

    253KB

  • MD5

    663ac1bdb34abacde4a22fc79864e968

  • SHA1

    5772847c44e6d5d560c6a89595fd621ced0c9e1d

  • SHA256

    451c5699be2feac88af56d5cbfbb5efc9561794ec93844d1a010d9e6bc815f57

  • SHA512

    4cf9b5d8ff009018451cfecb98e6c28e217a9969cc1a29024da16d157af3658b777c3ac66ec162decb629d7b270d069122a981be1144261668541c9800738344

  • SSDEEP

    3072:KQI6B2S63X5wy/gFTp6bD9faWpV25qyphC6SCemnrtZmIqwbZnM:K96B2S63pwyHyCIhC/sriHwRM

Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (147915) 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
  • 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.mpsl.elf
    /tmp/.5r3fqt67ew531has4231.mpsl.elf
    1⤵
    • Modifies Watchdog functionality
    • Changes its process name
    • Reads runtime system information
    PID:737
    • /bin/sh
      sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/.5r3fqt67ew531has4231.mpsl.elf bin/watchdog; chmod 777 bin/watchdog"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:740
      • /usr/bin/rm
        rm -rf bin/watchdog
        3⤵
          PID:742
        • /usr/bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:745
        • /usr/bin/mv
          mv /tmp/.5r3fqt67ew531has4231.mpsl.elf bin/watchdog
          3⤵
          • Reads runtime system information
          PID:748
        • /usr/bin/chmod
          chmod 777 bin/watchdog
          3⤵
          • File and Directory Permissions Modification
          PID:753

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads