Analysis

  • max time kernel
    130s
  • max time network
    14s
  • 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
    18/08/2026, 12:30

General

  • Target
    preparar.sh
  • Size 5KB
  • Sample260818-pphmjasdjc
  • 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:716
    • /usr/bin/sudo
      sudo -v
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:721
    • /usr/bin/sudo
      sudo tee /etc/sudoers.d/nobox-migracao
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:733
      • /usr/bin/tee
        tee /etc/sudoers.d/nobox-migracao
        3⤵
        • Modifies sudoers policy
        • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
        PID:737
    • /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:738
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:743
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxJ-0000Bz-3C
          4⤵
          • Reads CPU attributes
          PID:753
    • /usr/bin/sudo
      sudo systemsetup -setremotelogin on
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:745
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:750
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxK-0000C6-El
          4⤵
          • Reads CPU attributes
          PID:762
    • /usr/bin/sudo
      sudo scutil --set HostName nobox-m1
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:751
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:756
    • /usr/bin/sudo
      sudo scutil --set LocalHostName nobox-m1
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:757
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:760
    • /usr/bin/sudo
      sudo scutil --set ComputerName "Nobox M1 (producao)"
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:761
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:766
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxN-0000CM-Cs
          4⤵
          • Reads CPU attributes
          PID:775
    • /bin/mkdir
      mkdir -p /root/.ssh
      2⤵
      • Reads runtime system information
      PID:768
    • /bin/grep
      grep -q "claude-comando@macbook-principal" /root/.ssh/authorized_keys
      2⤵
      • System Network Configuration Discovery
      PID:770
    • /bin/chmod
      chmod 700 /root/.ssh
      2⤵
        PID:772
      • /bin/chmod
        chmod 600 /root/.ssh/authorized_keys
        2⤵
          PID:773
        • /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:776
          • /usr/sbin/sendmail
            sendmail -t
            3⤵
            • Reads runtime system information
            PID:780
        • /usr/bin/sudo
          sudo systemsetup -setrestartpowerfailure on
          2⤵
          • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
          • Reads runtime system information
          PID:781
          • /usr/sbin/sendmail
            sendmail -t
            3⤵
            • Reads runtime system information
            PID:785
            • /usr/sbin/exim4
              /usr/sbin/exim4 -Mc 1wwIxQ-0000Cf-V4
              4⤵
              • Reads CPU attributes
              PID:792
        • /bin/sleep
          sleep 20
          2⤵
            PID:790
          • /bin/sleep
            sleep 20
            2⤵
              PID:874
            • /bin/sleep
              sleep 20
              2⤵
                PID:876
              • /bin/sleep
                sleep 20
                2⤵
                  PID:878
                • /bin/sleep
                  sleep 20
                  2⤵
                    PID:880
                  • /bin/sleep
                    sleep 20
                    2⤵
                      PID:882
                    • /bin/sleep
                      sleep 20
                      2⤵
                        PID:884
                    • /usr/sbin/exim4
                      /usr/sbin/exim4 -Mc 1wwIxL-0000CC-C5
                      1⤵
                      • Reads CPU attributes
                      PID:769
                    • /usr/sbin/exim4
                      /usr/sbin/exim4 -Mc 1wwIxM-0000CG-6d
                      1⤵
                      • Reads CPU attributes
                      PID:771
                    • /usr/sbin/exim4
                      /usr/sbin/exim4 -Mc 1wwIxQ-0000Ca-FH
                      1⤵
                      • Reads CPU attributes
                      PID:791

                    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 874B
                          • SHA256 a9424b7d2169041dfe7412316bc1c05ce366c91c29e585050dee46e6866fd6cd
                          • MD5 SHA1 SHA512 TLSH

                          user

                          • Path /var/mail/user
                          • Size 1KB
                          • SHA256 5a87d205139ef8dac3095a4b832e5f03de2cdcd5c3fdd771cb6cb5099d8d74e8
                          • MD5 SHA1 SHA512 TLSH

                          user

                          • Path /var/mail/user
                          • Size 2KB
                          • SHA256 db474dfe7dfbda84b5ce5de0a04cd4a0d36b928f5f4b1536a81d084d2807dcad
                          • MD5 SHA1 SHA512 TLSH

                          user

                          • Path /var/mail/user
                          • Size 3KB
                          • SHA256 940aed8701db22925dc29d34b1794a933ca7ac987d96b95cd7067344c1470898
                          • MD5 SHA1 SHA512 TLSH

                          user

                          • Path /var/mail/user
                          • Size 4KB
                          • SHA256 b3f2bc55cbad7b76bbb9aa6923cd7019e78b24e9eee3ac5f5a54ad8986ebba31
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          user

                          • Path /var/mail/user
                          • Size 5KB
                          • SHA256 b5f6db2235da08917a936db204079dbd9afec9c14cfafcff3dab21c479a7fc65
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          1wwIxJ-0000Bz-3C-D

                          • Path /var/spool/exim4/input/1wwIxJ-0000Bz-3C-D
                          • Size 174B
                          • SHA256 e21c3dfe776cd487f974e2d2bbcac50cdfa3e849bfcd8df34037462769abfca4
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxJ-0000Bz-3C-J

                          • Path /var/spool/exim4/input/1wwIxJ-0000Bz-3C-J
                          • Size 34B
                          • SHA256 21db3a59b2d0ce18fb250b787d6e2c85d12919f5fdf1448c8f48207c4083b159
                          • MD5 SHA1 SHA512

                          1wwIxK-0000C6-El-D

                          • Path /var/spool/exim4/input/1wwIxK-0000C6-El-D
                          • Size 174B
                          • SHA256 97f30f27194dda47d8f4e56105b221fb74214778c07b19ac644cf34c88205c49
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxL-0000CC-C5-D

                          • Path /var/spool/exim4/input/1wwIxL-0000CC-C5-D
                          • Size 174B
                          • SHA256 e2e9095511e1976da4db51f60416b16c6dc3764f04965486ff356617b1d53e5b
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxM-0000CG-6d-D

                          • Path /var/spool/exim4/input/1wwIxM-0000CG-6d-D
                          • Size 174B
                          • SHA256 5854597536c9cd6b64c03cf6393fcbdcffd3f151ba44d0aab727ae55993161e4
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxN-0000CM-Cs-D

                          • Path /var/spool/exim4/input/1wwIxN-0000CM-Cs-D
                          • Size 174B
                          • SHA256 43ff17571b512d4ec452b3b035d91e760d6fee6a60171db2b4a4eb7298e76274
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxQ-0000Ca-FH-D

                          • Path /var/spool/exim4/input/1wwIxQ-0000Ca-FH-D
                          • Size 174B
                          • SHA256 32c3a455eb1691be8fcbe3cefce34533b709322740d131459e7433c0cfb7d3e7
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxQ-0000Cf-V4-D

                          • Path /var/spool/exim4/input/1wwIxQ-0000Cf-V4-D
                          • Size 174B
                          • SHA256 fb07c68c6e5fad6c663db9084b6aae5c49ddd43d51b53c9d973f954ebca44c2e
                          • MD5 SHA1 SHA512 TLSH

                          hdr.743

                          • Path /var/spool/exim4/input/hdr.743
                          • Size 918B
                          • SHA256 4236f8005db2f56dc0b6f6e2cf25f0184dbed1e65886bc10f6bcfac9c8f28bdc
                          • MD5 SHA1 SHA512 TLSH

                          hdr.750

                          • Path /var/spool/exim4/input/hdr.750
                          • Size 918B
                          • SHA256 97858a0e11211d34c1841a7ff3942d403de6cbf4f25f207c92d139886ebbd7a8
                          • MD5 SHA1 SHA512 TLSH

                          hdr.756

                          • Path /var/spool/exim4/input/hdr.756
                          • Size 918B
                          • SHA256 b26b474a5373891943bf3dbb4ca90f2cfdd0569fc785b3ff97d73f9d624bb9ab
                          • MD5 SHA1 SHA512 TLSH

                          hdr.760

                          • Path /var/spool/exim4/input/hdr.760
                          • Size 918B
                          • SHA256 9e9b69c3c00da02bca27ca8c9faaf591498904f9020a5911344e38e026baac9f
                          • MD5 SHA1 SHA512 TLSH

                          hdr.766

                          • Path /var/spool/exim4/input/hdr.766
                          • Size 918B
                          • SHA256 f21107de5d432ac6db31bd069885e96b154dac3dbf3fde041557d0e7cbc93e11
                          • MD5 SHA1 SHA512 TLSH

                          hdr.780

                          • Path /var/spool/exim4/input/hdr.780
                          • Size 918B
                          • SHA256 e2b9a98a2da66455d20c2fdd3f74b2ef455a1deaa5d026d7641cf62e322aa3db
                          • MD5 SHA1 SHA512 TLSH

                          hdr.785

                          • Path /var/spool/exim4/input/hdr.785
                          • Size 918B
                          • SHA256 a305a62f7b08944296f7547752d75c5a5112bbae928a66b27778d8d32cad6438
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxJ-0000Bz-3C

                          • Path /var/spool/exim4/msglog/1wwIxJ-0000Bz-3C
                          • Size 288B
                          • SHA256 1f9613094b766f30dc1aa860a3b041227a734cd0a8b0f4b83b645585e0504bb4
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxJ-0000Bz-3C

                          • Path /var/spool/exim4/msglog/1wwIxJ-0000Bz-3C
                          • Size 89B
                          • SHA256 8fd9b3f88843dd9954f36960021530ee173e50783ab3d71360524ebbfb5b0749
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxK-0000C6-El

                          • Path /var/spool/exim4/msglog/1wwIxK-0000C6-El
                          • Size 288B
                          • SHA256 538d7f55f3e7e12fcecb9004c5d3b31e70058dc72dcbff4e9f0864c766c8897b
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxK-0000C6-El

                          • Path /var/spool/exim4/msglog/1wwIxK-0000C6-El
                          • Size 89B
                          • SHA256 a179c6feae8775dcb51e172261fe42770819f55b27313579f97bcc20dc493dca
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxL-0000CC-C5

                          • Path /var/spool/exim4/msglog/1wwIxL-0000CC-C5
                          • Size 89B
                          • SHA256 ceb0025398b4e0b91abc3a06df9d243db955be8bbab272423048960b806330e7
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxL-0000CC-C5

                          • Path /var/spool/exim4/msglog/1wwIxL-0000CC-C5
                          • Size 288B
                          • SHA256 2dfa13be842236d4c1eee1962b82dfa122d14f3f359cc0f3fb1a631dfa5bcc04
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxM-0000CG-6d

                          • Path /var/spool/exim4/msglog/1wwIxM-0000CG-6d
                          • Size 89B
                          • SHA256 ecbd9387973c7c7acbb040e74fdaea79c025fee9e43406df84d4876132f510fa
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxM-0000CG-6d

                          • Path /var/spool/exim4/msglog/1wwIxM-0000CG-6d
                          • Size 288B
                          • SHA256 fd0c407ff8efd768e4edfef8572fa659b369ff5b5dec51cd25faedfdd9e9d4ff
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxN-0000CM-Cs

                          • Path /var/spool/exim4/msglog/1wwIxN-0000CM-Cs
                          • Size 89B
                          • SHA256 6770a7a85cd196dc8c534d688ed7232060421e6589adacba8dafc2c5197c36e0
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxN-0000CM-Cs

                          • Path /var/spool/exim4/msglog/1wwIxN-0000CM-Cs
                          • Size 288B
                          • SHA256 53dc3e772766f473a5e6e7b56a6531bfd0f6b9a3836c0ef40622fc410623308f
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxQ-0000Ca-FH

                          • Path /var/spool/exim4/msglog/1wwIxQ-0000Ca-FH
                          • Size 89B
                          • SHA256 8ba02e2e0c6af797d93339d675081b5a3dac323390e27ec7b9e0b67fae027bed
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxQ-0000Ca-FH

                          • Path /var/spool/exim4/msglog/1wwIxQ-0000Ca-FH
                          • Size 288B
                          • SHA256 5f23d1da94a97e7e8b302e7e26ae69ab992c7ca4d623a71dad6a4769451f6a8c
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxQ-0000Cf-V4

                          • Path /var/spool/exim4/msglog/1wwIxQ-0000Cf-V4
                          • Size 89B
                          • SHA256 b546901485f2dd1d89e0fdc74b510c2e39ce4789ad585e40194d87f228770737
                          • MD5 SHA1 SHA512 TLSH

                          1wwIxQ-0000Cf-V4

                          • Path /var/spool/exim4/msglog/1wwIxQ-0000Cf-V4
                          • Size 288B
                          • SHA256 f382ddeb84eee756f1557abea0e882955a9cfeac06d6e1b0059daa0d37adc7cb
                          • MD5 SHA1 SHA512 TLSH