General

  • Target
    1.elf
  • Size 381KB
  • Sample260928-wqeetszerb
  • SHA256 ffe3f331a5ede0942477aa8f882c5c1d65587833491db70ed69554b5d9725059
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      1.elf
    • Size 381KB
    • SHA256 ffe3f331a5ede0942477aa8f882c5c1d65587833491db70ed69554b5d9725059
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Deletes itself

    • Executes dropped EXE

    • Modifies Watchdog functionality

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

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Modifies systemd

      Adds/ modifies systemd service files. Likely to achieve persistence.

    • Reads MAC address of network interface

      Fetches the MAC address of active network interfaces. May be used to detect known values for hypervisors.

    • Reads hardware information

      Accesses system info like serial numbers, manufacturer names etc.

    • Removes the immutable protection flag from a file

      Uses chattr to remove the immutable flag from a file, allowing previously write-protected files to be modified or deleted.

    • Write file to user bin folder

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks