Overview

overview

7

Static

static

1

m.i486.elf

ubuntu-18.04-amd64

7

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20260513-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    22/08/2026, 02:04

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General

  • Target
    m.i486.elf
  • Size 44KB
  • Sample260822-che7lsvsfy
  • SHA256 e4d12208789f36efc5a1ff765088fed95d6bb5972d1a804a4536fd42366797d4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
defense_evasiondiscoverypersistence

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 4 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
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Write file to user bin folder 1 IoCs
    persistence
  • Changes its process name 2 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • Writes file to tmp directory 4 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/m.i486.elf
    /tmp/m.i486.elf
    1⤵
    • Modifies Watchdog functionality
    • Changes its process name
    • Reads runtime system information
    PID:1505
    • /bin/sh
      sh -c "cp /tmp/m.i486.elf /root/.cling"
      2⤵
        PID:1507
        • /bin/cp
          cp /tmp/m.i486.elf /root/.cling
          3⤵
          • Reads runtime system information
          PID:1509
      • /bin/sh
        sh -c "cp /tmp/m.i486.elf /usr/local/bin/.cling"
        2⤵
          PID:1511
          • /bin/cp
            cp /tmp/m.i486.elf /usr/local/bin/.cling
            3⤵
            • Write file to user bin folder
            PID:1512
        • /bin/sh
          sh -c "chmod +x /root/.cling"
          2⤵
          • File and Directory Permissions Modification
          PID:1513
          • /bin/chmod
            chmod +x /root/.cling
            3⤵
            • File and Directory Permissions Modification
            PID:1514
        • /bin/sh
          sh -c "chmod +x /usr/local/bin/.cling"
          2⤵
          • File and Directory Permissions Modification
          PID:1515
          • /bin/chmod
            chmod +x /usr/local/bin/.cling
            3⤵
            • File and Directory Permissions Modification
            PID:1516
        • /bin/sh
          sh -c "cp /proc/1/stat /tmp/stat"
          2⤵
            PID:1517
            • /bin/cp
              cp /proc/1/stat /tmp/stat
              3⤵
              • Reads runtime system information
              • Writes file to tmp directory
              PID:1518
          • /bin/sh
            sh -c "cp /proc/1/status /tmp/status"
            2⤵
              PID:1519
              • /bin/cp
                cp /proc/1/status /tmp/status
                3⤵
                • Reads runtime system information
                • Writes file to tmp directory
                PID:1520
            • /bin/sh
              sh -c "cp /proc/1/cmdline /tmp/cmdline"
              2⤵
                PID:1521
                • /bin/cp
                  cp /proc/1/cmdline /tmp/cmdline
                  3⤵
                  • Writes file to tmp directory
                  PID:1522
              • /bin/sh
                sh -c "cp /proc/1/statm /tmp/statm"
                2⤵
                  PID:1524
                  • /bin/cp
                    cp /proc/1/statm /tmp/statm
                    3⤵
                    • Writes file to tmp directory
                    PID:1525
                • /bin/sh
                  sh -c "mount --bind /tmp /proc/1506"
                  2⤵
                    PID:1526
                    • /bin/mount
                      mount --bind /tmp /proc/1506
                      3⤵
                        PID:1527
                    • /bin/sh
                      sh -c "mount --bind /tmp /proc/1534"
                      2⤵
                        PID:1535
                        • /bin/mount
                          mount --bind /tmp /proc/1534
                          3⤵
                            PID:1536

                      Network

                            MITRE ATT&CK Enterprise v16

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                            Downloads

                            .cling
                            • Path /root/.cling
                            • Size 44KB
                            • SHA256 e4d12208789f36efc5a1ff765088fed95d6bb5972d1a804a4536fd42366797d4
                            • MD5 SHA1 SHA512 SSDEEP TLSH
                            Submit Download

                            cmdline
                            • Path /tmp/cmdline
                            • Size 11B
                            • SHA256 6628c1ade33319fc12730a87856ccdb1e4eaed9a0aa2b0bce0535a97a232f272
                            • MD5 SHA1 SHA512
                            Submit Download

                            stat
                            • Path /tmp/stat
                            • Size 313B
                            • SHA256 3efaafeeee56ad8564359f954351b403ff98f7034b21e0ce5392bc2b51bc8278
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download

                            statm
                            • Path /tmp/statm
                            • Size 29B
                            • SHA256 fa13464b1054bae16244802dc030e70bdaf74e025d5bf2f8c4b27be633600880
                            • MD5 SHA1 SHA512
                            Submit Download

                            status
                            • Path /tmp/status
                            • Size 1KB
                            • SHA256 56ab348fa7390b5c42a35b1cd3222d9e39bd1dfeb09ac7e93b154c9f91f24a70
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download