Overview

overview

9

Static

static

1

xd.x86.elf

ubuntu-18.04-amd64

9

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    02/08/2026, 23:13

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General

  • Target
    xd.x86.elf
  • Size 801KB
  • Sample260802-27m17agq21
  • SHA256 4f957ced7aeec095681d6140d0c7246983626a308060b1a1df3b55fbd3478da5
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (128659) amount of remote hosts 1 TTPs

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

    discovery
  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Deletes itself 2 IoCs
  • 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

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 1 IoCs
  • Reads CPU attributes 1 TTPs 1 IoCs
    discovery
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 64 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/xd.x86.elf
    /tmp/xd.x86.elf
    1⤵
    • Deletes itself
    • Modifies Watchdog functionality
    • Traces itself
    • Enumerates active TCP sockets
    • Changes its process name
    • Reads CPU attributes
    • Reads system network configuration
    • Reads runtime system information
    • Writes file to tmp directory
    PID:1495

Network

        MITRE ATT&CK Enterprise v16

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