General

  • Target
    armv5l.elf
  • Size 559KB
  • Sample261006-g299basbpc
  • SHA256 18a6d56d3e50136ad04d500b43cfa0d67a24574db8794b334ac5afdb4ef2fb1e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      armv5l.elf
    • Size 559KB
    • SHA256 18a6d56d3e50136ad04d500b43cfa0d67a24574db8794b334ac5afdb4ef2fb1e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contacts a large (10462) amount of remote hosts

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

    • Outbound SSH connection to public host

      SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

    • Creates a large amount of network flows

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

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    • Creates/modifies environment variables

      Creating/modifying environment variables is a common persistence mechanism.

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Modifies rc script

      Adding/modifying system rc scripts is a common persistence mechanism.

    • 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 system routing table

      Gets active network interfaces from /proc virtual filesystem.

    • Modifies Bash startup script

MITRE ATT&CK Enterprise v16

Tasks