Analysis

  • max time kernel
    144s
  • max time network
    9s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    18/08/2026, 12:30

General

  • Target
    preparar.sh
  • Size 5KB
  • Sample260818-ppln7atvez
  • SHA256 488667a02eaf88aa7ce155eb0eaee42424e92e888ac39cb19efd826c3756a377
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds new SSH keys 1 TTPs 1 IoCs

    Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.

  • Modifies sudoers policy 1 TTPs 1 IoCs

    Writes to /etc/sudoers or a drop-in config, potentially granting passwordless root access to a user or process.

  • Abuse Elevation Control Mechanism: Sudo and Sudo Caching 1 TTPs 10 IoCs

    Abuse sudo or cached sudo credentials to execute code.

  • Reads CPU attributes 1 TTPs 7 IoCs
  • Reads runtime system information 43 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 1 IoCs

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

Processes

  • /tmp/preparar.sh
    /tmp/preparar.sh
    1⤵
    • Adds new SSH keys
    PID:637
    • /usr/bin/sudo
      sudo -v
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:645
    • /usr/bin/sudo
      sudo tee /etc/sudoers.d/nobox-migracao
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:661
      • /usr/bin/tee
        tee /etc/sudoers.d/nobox-migracao
        3⤵
        • Modifies sudoers policy
        • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
        PID:666
    • /usr/bin/sudo
      sudo chmod 440 /etc/sudoers.d/nobox-migracao
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:667
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:671
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxS-0000Ap-9P
          4⤵
          • Reads CPU attributes
          PID:691
    • /usr/bin/sudo
      sudo systemsetup -setremotelogin on
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:672
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:675
    • /usr/bin/sudo
      sudo scutil --set HostName nobox-m1
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:676
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:680
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxS-0000Ay-VE
          4⤵
          • Reads CPU attributes
          PID:695
    • /usr/bin/sudo
      sudo scutil --set LocalHostName nobox-m1
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:679
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:684
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxT-0000B2-Hd
          4⤵
          • Reads CPU attributes
          PID:700
    • /usr/bin/sudo
      sudo scutil --set ComputerName "Nobox M1 (producao)"
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:683
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:687
    • /bin/mkdir
      mkdir -p /root/.ssh
      2⤵
      • Reads runtime system information
      PID:688
    • /bin/grep
      grep -q "claude-comando@macbook-principal" /root/.ssh/authorized_keys
      2⤵
      • System Network Configuration Discovery
      PID:689
    • /bin/chmod
      chmod 700 /root/.ssh
      2⤵
        PID:690
      • /bin/chmod
        chmod 600 /root/.ssh/authorized_keys
        2⤵
          PID:692
        • /usr/bin/sudo
          sudo pmset -a sleep 0 displaysleep 10 womp 1
          2⤵
          • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
          • Reads runtime system information
          PID:694
          • /usr/sbin/sendmail
            sendmail -t
            3⤵
            • Reads runtime system information
            PID:698
            • /usr/sbin/exim4
              /usr/sbin/exim4 -Mc 1wwIxV-0000BG-CP
              4⤵
              • Reads CPU attributes
              PID:714
        • /usr/bin/sudo
          sudo systemsetup -setrestartpowerfailure on
          2⤵
          • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
          • Reads runtime system information
          PID:699
          • /usr/sbin/sendmail
            sendmail -t
            3⤵
            • Reads runtime system information
            PID:703
        • /bin/sleep
          sleep 20
          2⤵
            PID:707
          • /bin/sleep
            sleep 20
            2⤵
              PID:805
            • /bin/sleep
              sleep 20
              2⤵
                PID:815
              • /bin/sleep
                sleep 20
                2⤵
                  PID:821
                • /bin/sleep
                  sleep 20
                  2⤵
                    PID:827
                  • /bin/sleep
                    sleep 20
                    2⤵
                      PID:833
                    • /bin/sleep
                      sleep 20
                      2⤵
                        PID:839
                      • /bin/sleep
                        sleep 20
                        2⤵
                          PID:845
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxS-0000At-HD
                        1⤵
                        • Reads CPU attributes
                        PID:693
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxU-0000B5-7f
                        1⤵
                        • Reads CPU attributes
                        PID:708
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxV-0000BL-RV
                        1⤵
                        • Reads CPU attributes
                        PID:717

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            nobox-migracao

                            • Path /etc/sudoers.d/nobox-migracao
                            • Size 25B
                            • SHA256 913c6467a4abf3a2bd0ae2af3e0326bb490368890709f8a52eeec9926ce61da0
                            • MD5 SHA1 SHA512

                            authorized_keys

                            • Path /root/.ssh/authorized_keys
                            • Size 114B
                            • SHA256 914d0d21e796b6d963be76a2b75fdb5b12c2dff43e112d4a9217d3d969a12387
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 866B
                            • SHA256 820894dbb17fd782fc1138e8eb7aca4e7aefc5ad83c6da73cf3290c5ed76e9db
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 1KB
                            • SHA256 aa0f56b62d91c638627b2184a142884d7d5f644cadd9b94ceedb3f4a0ffa76cd
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 2KB
                            • SHA256 0b19d534490c541149e5e3d87474bebe48cb19660fd1bf6f580efee639ebcbf9
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 3KB
                            • SHA256 9ce7deee9b788e1af5ab6ee5e26fda217a65eea8f8a59351c8a618c0aadc695e
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 4KB
                            • SHA256 fb11493582c8fcee19aa31705f9252de9a0edb5c0d7e1abdf9e8e700528be76a
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            user

                            • Path /var/mail/user
                            • Size 5KB
                            • SHA256 addd18072cd5883381b733dd9661b293986e77d9a995f7996c822aa01e228577
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            1wwIxS-0000Ap-9P-D

                            • Path /var/spool/exim4/input/1wwIxS-0000Ap-9P-D
                            • Size 172B
                            • SHA256 5cdf2ef991bef0e6a5573077edc167b4ea452633ac52ca1b375d03fa0b8c85b2
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000At-HD-D

                            • Path /var/spool/exim4/input/1wwIxS-0000At-HD-D
                            • Size 172B
                            • SHA256 27fa182bec638b618984a8848f449054bc8c866a9d1a0ce1f22bab63f41acfc6
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000At-HD-J

                            • Path /var/spool/exim4/input/1wwIxS-0000At-HD-J
                            • Size 34B
                            • SHA256 21db3a59b2d0ce18fb250b787d6e2c85d12919f5fdf1448c8f48207c4083b159
                            • MD5 SHA1 SHA512

                            1wwIxS-0000Ay-VE-D

                            • Path /var/spool/exim4/input/1wwIxS-0000Ay-VE-D
                            • Size 172B
                            • SHA256 502b51c9aa26f304a1abebcc46f4fdeb22bcfc821d08d17ece2b1e68bb4355da
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxT-0000B2-Hd-D

                            • Path /var/spool/exim4/input/1wwIxT-0000B2-Hd-D
                            • Size 172B
                            • SHA256 fef71f631e52871296bfb6479d79b64fe70489c356fcc74b6a8bdeb4557e377b
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxU-0000B5-7f-D

                            • Path /var/spool/exim4/input/1wwIxU-0000B5-7f-D
                            • Size 172B
                            • SHA256 5609a98a7a62ead27b4f22ceb440de6af058dc382c80aecdfba8c4b61d376154
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxV-0000BG-CP-D

                            • Path /var/spool/exim4/input/1wwIxV-0000BG-CP-D
                            • Size 172B
                            • SHA256 a6f561d4a327f386b5a039564083e499ae0bc4b4408919fa007cd43e39876cb0
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxV-0000BL-RV-D

                            • Path /var/spool/exim4/input/1wwIxV-0000BL-RV-D
                            • Size 172B
                            • SHA256 f80d617e440ce28091de785151d00910b88bd22b1240c9cf4c179f70fbc19c7e
                            • MD5 SHA1 SHA512 TLSH

                            hdr.671

                            • Path /var/spool/exim4/input/hdr.671
                            • Size 912B
                            • SHA256 cbcbf4fde5fda7eb950ecfce700071ec4ec049dd654c043f2d8951feac6c3ae8
                            • MD5 SHA1 SHA512 TLSH

                            hdr.675

                            • Path /var/spool/exim4/input/hdr.675
                            • Size 912B
                            • SHA256 dbe596ce43ea0e8454d960874610073ce943eb42e1a924f77ac12ce124537320
                            • MD5 SHA1 SHA512 TLSH

                            hdr.680

                            • Path /var/spool/exim4/input/hdr.680
                            • Size 912B
                            • SHA256 7be0615b0d15f652243537426d1e1d5370e55f1e4acc379f8de497a46a87c447
                            • MD5 SHA1 SHA512 TLSH

                            hdr.684

                            • Path /var/spool/exim4/input/hdr.684
                            • Size 912B
                            • SHA256 e5539354c6958ab3108b749e93ff37dfd04edd68576f498c9a2ab8ed698f78f8
                            • MD5 SHA1 SHA512 TLSH

                            hdr.687

                            • Path /var/spool/exim4/input/hdr.687
                            • Size 912B
                            • SHA256 d2a98f8805cb2a54e46a3de9e09bb8cf0e085225f7732cda9f29ff3539d1f5b0
                            • MD5 SHA1 SHA512 TLSH

                            hdr.698

                            • Path /var/spool/exim4/input/hdr.698
                            • Size 912B
                            • SHA256 c8d8c680a99943106174cb0f76f04bf58b9601131d5ceb3b873cfff560117deb
                            • MD5 SHA1 SHA512 TLSH

                            hdr.703

                            • Path /var/spool/exim4/input/hdr.703
                            • Size 912B
                            • SHA256 5dcca49c2df50a33785e89194dbd1f286ba74a1783c0ed6f9b3661506aa1cf9e
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000Ap-9P

                            • Path /var/spool/exim4/msglog/1wwIxS-0000Ap-9P
                            • Size 288B
                            • SHA256 0cd2702fc7896dfc905fbcfa7d78af481cdd8a3437f2f8a183a646696ce131ab
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000Ap-9P

                            • Path /var/spool/exim4/msglog/1wwIxS-0000Ap-9P
                            • Size 89B
                            • SHA256 21117dfeccd67f0ff51cc5f38442b7d3c2cdc20128eee8fac3ee98a05d332e77
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000At-HD

                            • Path /var/spool/exim4/msglog/1wwIxS-0000At-HD
                            • Size 288B
                            • SHA256 2f9f1dd22ee6658a1308652e120ea46dce6825c8bc80d33ec090bb6ca6d45e58
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000Ay-VE

                            • Path /var/spool/exim4/msglog/1wwIxS-0000Ay-VE
                            • Size 89B
                            • SHA256 a33fb24582dd977af530f4a6e3d17b7197e519cc530571834a033d0cb88fdea0
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxS-0000Ay-VE

                            • Path /var/spool/exim4/msglog/1wwIxS-0000Ay-VE
                            • Size 288B
                            • SHA256 38f8bd86660cce2b2e3834bfe13e12b67c57c36f95a13412e89bf15bb461e759
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxU-0000B5-7f

                            • Path /var/spool/exim4/msglog/1wwIxU-0000B5-7f
                            • Size 89B
                            • SHA256 ab3b9a6413f20aef1ca06b1da82a69760c187265df18e79bc949696f2832b58e
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxU-0000B5-7f

                            • Path /var/spool/exim4/msglog/1wwIxU-0000B5-7f
                            • Size 288B
                            • SHA256 3ccf16a39ba109c30a5b1174d19f86400858843c6d294551394b5ce107c19006
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxV-0000BG-CP

                            • Path /var/spool/exim4/msglog/1wwIxV-0000BG-CP
                            • Size 89B
                            • SHA256 e2b94712b9ef2f96872c21cef4599cd46ebef5ef00dff343bbc17063a086687f
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxV-0000BG-CP

                            • Path /var/spool/exim4/msglog/1wwIxV-0000BG-CP
                            • Size 288B
                            • SHA256 9e0b26a500ea711f47d9b845e5a61d9ca6856e403bd5acf1173f89ca690d6adb
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxV-0000BL-RV

                            • Path /var/spool/exim4/msglog/1wwIxV-0000BL-RV
                            • Size 288B
                            • SHA256 5029371285f79fdff2827f17bfac4e9d571af9bb71f8080158cfef2457182268
                            • MD5 SHA1 SHA512 TLSH