Overview

overview

10

Static

static

5

botnet.arm7.elf

debian-9-armhf

10

Analysis

  • max time kernel
    149s
  • max time network
    175s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    13-11-2024 23:47

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General

  • Target

    botnet.arm7.elf

  • Size

    61KB

  • MD5

    b5c3047b6f517981a80e6e8910f97e7f

  • SHA1

    e63b84208378269256923b55ae761800207c0e7e

  • SHA256

    e2ebaa64590a5ee4249be1380fc0ab8386a9e425cabb4646028d69fb502ccc17

  • SHA512

    554bffaeb5ca19eb36776bb01a3a2e793cb63e4ee23eaa8d3c258d94124a04b5e0c6b496c119f387826fe3afde9fec395ad1b41487076fb18b94cd435fbcb31f

  • SSDEEP

    1536:gz3fTxnj8Uz2WY4aubeMIR02jRp13D0SOj5fiU:GrxjzztY4FgRntyliU

Score
10/10
miraimiraibotnetdefense_evasiondiscovery

Malware Config

Extracted

Family

mirai

Botnet

MIRAI

Signatures

  • Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

    botnetmirai
  • Mirai family
    mirai
  • Contacts a large (23511) 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
  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Changes its process name 1 IoCs
  • Reads runtime system information 3 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/botnet.arm7.elf
    /tmp/botnet.arm7.elf
    1⤵
    • Changes its process name
    • Reads runtime system information
    PID:652
    • /bin/sh
      /bin/sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/botnet.arm7.elf bin/watchdog; chmod 777 bin/watchdog"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:653
      • /bin/rm
        rm -rf bin/watchdog
        3⤵
          PID:654
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:655
        • /bin/mv
          mv /tmp/botnet.arm7.elf bin/watchdog
          3⤵
          • Reads runtime system information
          PID:659
        • /bin/chmod
          chmod 777 bin/watchdog
          3⤵
          • File and Directory Permissions Modification
          PID:663

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/652-1-0x00008000-0x0002d424-memory.dmp

      Download