Overview

overview

7

Static

static

1

m.x86_64.elf

ubuntu-18.04-amd64

7

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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.x86_64.elf
  • Size 45KB
  • Sample260822-che7lsvsfv
  • SHA256 dfba6008a2c828a9cb62342aec53006ae05a60cb8d4c41c3fa216fd727e8c6a3
  • 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.x86_64.elf
    /tmp/m.x86_64.elf
    1⤵
    • Modifies Watchdog functionality
    • Changes its process name
    • Reads runtime system information
    PID:1495
    • /bin/sh
      sh -c "cp /tmp/m.x86_64.elf /root/.cling"
      2⤵
        PID:1499
        • /bin/cp
          cp /tmp/m.x86_64.elf /root/.cling
          3⤵
            PID:1500
        • /bin/sh
          sh -c "cp /tmp/m.x86_64.elf /usr/local/bin/.cling"
          2⤵
            PID:1501
            • /bin/cp
              cp /tmp/m.x86_64.elf /usr/local/bin/.cling
              3⤵
              • Write file to user bin folder
              PID:1502
          • /bin/sh
            sh -c "chmod +x /root/.cling"
            2⤵
            • File and Directory Permissions Modification
            PID:1503
            • /bin/chmod
              chmod +x /root/.cling
              3⤵
              • File and Directory Permissions Modification
              PID:1504
          • /bin/sh
            sh -c "chmod +x /usr/local/bin/.cling"
            2⤵
            • File and Directory Permissions Modification
            PID:1505
            • /bin/chmod
              chmod +x /usr/local/bin/.cling
              3⤵
              • File and Directory Permissions Modification
              PID:1506
          • /bin/sh
            sh -c "cp /proc/1/stat /tmp/stat"
            2⤵
              PID:1507
              • /bin/cp
                cp /proc/1/stat /tmp/stat
                3⤵
                • Writes file to tmp directory
                PID:1508
            • /bin/sh
              sh -c "cp /proc/1/status /tmp/status"
              2⤵
                PID:1509
                • /bin/cp
                  cp /proc/1/status /tmp/status
                  3⤵
                  • Writes file to tmp directory
                  PID:1510
              • /bin/sh
                sh -c "cp /proc/1/cmdline /tmp/cmdline"
                2⤵
                  PID:1512
                  • /bin/cp
                    cp /proc/1/cmdline /tmp/cmdline
                    3⤵
                    • Reads runtime system information
                    • Writes file to tmp directory
                    PID:1513
                • /bin/sh
                  sh -c "cp /proc/1/statm /tmp/statm"
                  2⤵
                    PID:1514
                    • /bin/cp
                      cp /proc/1/statm /tmp/statm
                      3⤵
                      • Reads runtime system information
                      • Writes file to tmp directory
                      PID:1515
                  • /bin/sh
                    sh -c "mount --bind /tmp /proc/1496"
                    2⤵
                      PID:1517
                      • /bin/mount
                        mount --bind /tmp /proc/1496
                        3⤵
                          PID:1518
                      • /bin/sh
                        sh -c "mount --bind /tmp /proc/1525"
                        2⤵
                          PID:1526
                          • /bin/mount
                            mount --bind /tmp /proc/1525
                            3⤵
                              PID:1527

                        Network

                              MITRE ATT&CK Enterprise v16

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                              Downloads

                              .cling
                              • Path /root/.cling
                              • Size 45KB
                              • SHA256 dfba6008a2c828a9cb62342aec53006ae05a60cb8d4c41c3fa216fd727e8c6a3
                              • 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 cb5f80f952fdd8649a38e3788f4d332b6418e42baa2fc79cd86e0333d6575644
                              • MD5 SHA1 SHA512 TLSH
                              Submit Download

                              statm
                              • Path /tmp/statm
                              • Size 29B
                              • SHA256 459411e3ed1595513f445eb466d3aa52663c7424b60dfa00d3ab09e76e446273
                              • MD5 SHA1 SHA512
                              Submit Download

                              status
                              • Path /tmp/status
                              • Size 1KB
                              • SHA256 01d8a4efe76bf196e6d414a9b2ba64fce4affc983a4365cdaefca78ea040dd42
                              • MD5 SHA1 SHA512 TLSH
                              Submit Download