Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    debian-12_mipsel
  • resource
    debian12-mipsel-20240221-en
  • resource tags

    arch:mipselimage:debian12-mipsel-20240221-enkernel:6.1.0-17-4kc-maltalocale:en-usos:debian-12-mipselsystem
  • submitted
    09/11/2024, 21:09

General

  • Target

    mpsl.elf

  • Size

    82KB

  • MD5

    c943b0b97d589efafc23f50241007426

  • SHA1

    3889e055c16beb780a4f51d7e36dab6d7af1d334

  • SHA256

    a4cbd774071d284abcf3b3dcb3dc653cbd9d2c02a6bf4459bcd23f5180e25170

  • SHA512

    0c8113299304520817fd41c53c6cf39b51f749e1658b5b657ef4b7186b74e85cfa8cf56af0579892d63d5366efae873edb4f2459198e1e92bbde25024b2db06d

  • SSDEEP

    1536:iVLyu95KZxkj752dCexuV/8UZlDwfkJ4MYfW7:iVLyMgqFezxu5VD1eK

Malware Config

Signatures

  • Contacts a large (36599) 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.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 1 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/mpsl.elf
    /tmp/mpsl.elf
    1⤵
    • Changes its process name
    • Reads runtime system information
    PID:742
    • /bin/sh
      sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/mpsl.elf bin/watchdog; chmod 777 bin/watchdog"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:743
      • /usr/bin/rm
        rm -rf bin/watchdog
        3⤵
          PID:746
        • /usr/bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:748
        • /usr/bin/mv
          mv /tmp/mpsl.elf bin/watchdog
          3⤵
            PID:752
          • /usr/bin/chmod
            chmod 777 bin/watchdog
            3⤵
            • File and Directory Permissions Modification
            PID:756

      Network

            MITRE ATT&CK Enterprise v15

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