Analysis

  • max time kernel
    144s
  • max time network
    8s
  • 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-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:642
    • /usr/bin/sudo
      sudo -v
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:649
    • /usr/bin/sudo
      sudo tee /etc/sudoers.d/nobox-migracao
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:667
      • /usr/bin/tee
        tee /etc/sudoers.d/nobox-migracao
        3⤵
        • Modifies sudoers policy
        • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
        PID:672
    • /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:673
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:677
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxI-0000Av-IA
          4⤵
          • Reads CPU attributes
          PID:698
    • /usr/bin/sudo
      sudo systemsetup -setremotelogin on
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:678
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:681
    • /usr/bin/sudo
      sudo scutil --set HostName nobox-m1
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:682
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:686
        • /usr/sbin/exim4
          /usr/sbin/exim4 -Mc 1wwIxJ-0000B4-5x
          4⤵
          • Reads CPU attributes
          PID:701
    • /usr/bin/sudo
      sudo scutil --set LocalHostName nobox-m1
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:685
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:689
    • /usr/bin/sudo
      sudo scutil --set ComputerName "Nobox M1 (producao)"
      2⤵
      • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
      • Reads runtime system information
      PID:690
      • /usr/sbin/sendmail
        sendmail -t
        3⤵
        • Reads runtime system information
        PID:693
    • /bin/mkdir
      mkdir -p /root/.ssh
      2⤵
      • Reads runtime system information
      PID:694
    • /bin/grep
      grep -q "claude-comando@macbook-principal" /root/.ssh/authorized_keys
      2⤵
      • System Network Configuration Discovery
      PID:695
    • /bin/chmod
      chmod 700 /root/.ssh
      2⤵
        PID:696
      • /bin/chmod
        chmod 600 /root/.ssh/authorized_keys
        2⤵
          PID:697
        • /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:700
          • /usr/sbin/sendmail
            sendmail -t
            3⤵
            • Reads runtime system information
            PID:704
            • /usr/sbin/exim4
              /usr/sbin/exim4 -Mc 1wwIxL-0000BM-9G
              4⤵
              • Reads CPU attributes
              PID:719
        • /usr/bin/sudo
          sudo systemsetup -setrestartpowerfailure on
          2⤵
          • Abuse Elevation Control Mechanism: Sudo and Sudo Caching
          • Reads runtime system information
          PID:705
          • /usr/sbin/sendmail
            sendmail -t
            3⤵
            • Reads runtime system information
            PID:709
        • /bin/sleep
          sleep 20
          2⤵
            PID:713
          • /bin/sleep
            sleep 20
            2⤵
              PID:812
            • /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
                      • /bin/sleep
                        sleep 20
                        2⤵
                          PID:851
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxI-0000Az-Oo
                        1⤵
                        • Reads CPU attributes
                        PID:699
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxJ-0000B7-MF
                        1⤵
                        • Reads CPU attributes
                        PID:706
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxK-0000BB-AU
                        1⤵
                        • Reads CPU attributes
                        PID:714
                      • /usr/sbin/exim4
                        /usr/sbin/exim4 -Mc 1wwIxL-0000BR-M8
                        1⤵
                        • Reads CPU attributes
                        PID:723

                      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 98795c0094b0c03c96eb61555f5a2a0ee78684cb8c385741c50003b8826287e3
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 1KB
                            • SHA256 e53c2b70661ae15b4d8d2f911c892512cc6a937b8ebd9adfa0de115d6239a90c
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 2KB
                            • SHA256 d59dd72a6cd69848222e8c569003e26aeb23d143af55b7e8aaabf13e871c3969
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 3KB
                            • SHA256 1a4c1f0e7308a92acf78727246aaf2b5dbf3f8e05986e291968976fa7696b9ba
                            • MD5 SHA1 SHA512 TLSH

                            user

                            • Path /var/mail/user
                            • Size 4KB
                            • SHA256 573fc8dc3e34058055474a3848cd1c46043485f0167f956a7e087b53237d159e
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            user

                            • Path /var/mail/user
                            • Size 5KB
                            • SHA256 7674a4d6764d0241a593d28789f507a786c4b13a77c0fc537afe55d81d697c3e
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            1wwIxI-0000Av-IA-D

                            • Path /var/spool/exim4/input/1wwIxI-0000Av-IA-D
                            • Size 172B
                            • SHA256 9956a8b521deac24993aae5c7b1242b49ea2c6645a9e52757e3a175b88527c76
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxI-0000Az-Oo-D

                            • Path /var/spool/exim4/input/1wwIxI-0000Az-Oo-D
                            • Size 172B
                            • SHA256 27e7d1988413a8fe857edf40117bd00a63e08dd206beb339f923496086b53b30
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxI-0000Az-Oo-J

                            • Path /var/spool/exim4/input/1wwIxI-0000Az-Oo-J
                            • Size 34B
                            • SHA256 21db3a59b2d0ce18fb250b787d6e2c85d12919f5fdf1448c8f48207c4083b159
                            • MD5 SHA1 SHA512

                            1wwIxJ-0000B4-5x-D

                            • Path /var/spool/exim4/input/1wwIxJ-0000B4-5x-D
                            • Size 172B
                            • SHA256 6e48da2e83903181eb3a8a12d87349e1518e937af3b761e4d3a7682084d9b1f5
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxJ-0000B7-MF-D

                            • Path /var/spool/exim4/input/1wwIxJ-0000B7-MF-D
                            • Size 172B
                            • SHA256 2c27a1f82ecb669f12970618e9ac2bab90f2bc2ffb1457a128e29a1316a6961b
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxK-0000BB-AU-D

                            • Path /var/spool/exim4/input/1wwIxK-0000BB-AU-D
                            • Size 172B
                            • SHA256 94293611c7abc9194e7867bfa679e5d20664c6a73d3af120ecd1b2d7dcc2f01e
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxL-0000BM-9G-D

                            • Path /var/spool/exim4/input/1wwIxL-0000BM-9G-D
                            • Size 172B
                            • SHA256 1b7944da8f6a540da70b41dd4d38b91a1f057dab717119c434a85d265e2bbbc6
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxL-0000BR-M8-D

                            • Path /var/spool/exim4/input/1wwIxL-0000BR-M8-D
                            • Size 172B
                            • SHA256 caeae91ea67eca04e7f51ecb2f7dce2756f6c128a1e639acbec8861e9b45600f
                            • MD5 SHA1 SHA512 TLSH

                            hdr.677

                            • Path /var/spool/exim4/input/hdr.677
                            • Size 912B
                            • SHA256 79430d51d43bac05179ed5c78eeb7d371182103bbc780f1efa69b92c6f3427eb
                            • MD5 SHA1 SHA512 TLSH

                            hdr.681

                            • Path /var/spool/exim4/input/hdr.681
                            • Size 912B
                            • SHA256 60d8ba751c3576d9bbd14735c6b8a469f4b2c3205eb5d1a2bc8896bb9fc21b28
                            • MD5 SHA1 SHA512 TLSH

                            hdr.686

                            • Path /var/spool/exim4/input/hdr.686
                            • Size 912B
                            • SHA256 87d82475bfe3da1df66547f03d2fd7cb16a33ca339e1d7ce14c84c573aca5719
                            • MD5 SHA1 SHA512 TLSH

                            hdr.689

                            • Path /var/spool/exim4/input/hdr.689
                            • Size 912B
                            • SHA256 7f5b019cad0c747238f7df4395188332e6bf283c550909301089ffc7fc242d9b
                            • MD5 SHA1 SHA512 TLSH

                            hdr.693

                            • Path /var/spool/exim4/input/hdr.693
                            • Size 912B
                            • SHA256 b14e448925d1e5388a5b34253a42b3339a306e8432ce2ca1405aa654ca519c68
                            • MD5 SHA1 SHA512 TLSH

                            hdr.704

                            • Path /var/spool/exim4/input/hdr.704
                            • Size 912B
                            • SHA256 f0c99e04d316ab6e1b4ff906b26042311e2ac931ad348f56ae16ddc3bbc942c9
                            • MD5 SHA1 SHA512 TLSH

                            hdr.709

                            • Path /var/spool/exim4/input/hdr.709
                            • Size 912B
                            • SHA256 4ef547764fdc82963dded8b9c40748f5cac13e08d6db6c96c12da4fd85b6cca1
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxI-0000Av-IA

                            • Path /var/spool/exim4/msglog/1wwIxI-0000Av-IA
                            • Size 288B
                            • SHA256 ee2a697047cb5badc9a6b849bb759910ce7e7fbce1f94bdb5b2531f962db469a
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxI-0000Av-IA

                            • Path /var/spool/exim4/msglog/1wwIxI-0000Av-IA
                            • Size 89B
                            • SHA256 870018bc24e0d8c9c01198125dc86640cf79c00d6d20836739ba7ccf76609b51
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxI-0000Az-Oo

                            • Path /var/spool/exim4/msglog/1wwIxI-0000Az-Oo
                            • Size 288B
                            • SHA256 035b57ad1aeb211e1bf7192583f9919f6fbf52767c71ae079d01da85d30773be
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxJ-0000B4-5x

                            • Path /var/spool/exim4/msglog/1wwIxJ-0000B4-5x
                            • Size 89B
                            • SHA256 b1f82e7e36ca78d4012374b244f7b9209a527fb589e0964f065eca6a67bd782e
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxJ-0000B4-5x

                            • Path /var/spool/exim4/msglog/1wwIxJ-0000B4-5x
                            • Size 288B
                            • SHA256 439a988740156f907942c199636853d5c4fcbfe2ba9959cdd0506eec44ce47fa
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxK-0000BB-AU

                            • Path /var/spool/exim4/msglog/1wwIxK-0000BB-AU
                            • Size 89B
                            • SHA256 aef07b98da0924d535c190ff2e84d5ecdb3bf48d869186ee8ae13e2c486b0d5e
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxK-0000BB-AU

                            • Path /var/spool/exim4/msglog/1wwIxK-0000BB-AU
                            • Size 288B
                            • SHA256 d3806a421180f819f8206f7a93a383b2587fd1eee3ee39efc890204d1a1fcd55
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxL-0000BM-9G

                            • Path /var/spool/exim4/msglog/1wwIxL-0000BM-9G
                            • Size 89B
                            • SHA256 53429fb00ad28625bb84164f1569c319fb10791375499be52384f3156eb9e8c9
                            • MD5 SHA1 SHA512 TLSH

                            1wwIxL-0000BM-9G

                            • Path /var/spool/exim4/msglog/1wwIxL-0000BM-9G
                            • Size 288B
                            • SHA256 3dbdb4585652804dc861158b99a34047461472f94efb8a418181deebe1b349f6
                            • MD5 SHA1 SHA512 TLSH