Overview

overview

10

Static

static

10

elitebotnet.arm7.elf

debian-9-armhf

9

Analysis

  • max time kernel
    149s
  • max time network
    160s
  • 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
    13-12-2024 14:50

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General

  • Target

    elitebotnet.arm7.elf

  • Size

    157KB

  • MD5

    039cc3f6c287db74271633fceb099529

  • SHA1

    eff890d71b3b2b0a63cda8150aa44f7523a680c2

  • SHA256

    bbb53c572a1a01eb7c910d59e362fa68d2b0a6e005065453b044bc22f80c6107

  • SHA512

    aec5d87f1ac8bcc098f4bf20781b3dcab6939ff04bff37762f088fee1fd35a1ed9fa6f665534d5795c75669838ad01211fc26e3e23b9a2137e5cefd746c172bf

  • SSDEEP

    3072:GkFWblVIqaNZNPCBATmI9ZeSxiwZdwbZn5uOMpfM/93Lke:G6gOqaNZNPCBk9ZIawR5uOMZM/93Lke

Score
9/10
defense_evasiondiscoverypersistence

Malware Config

Signatures

  • Contacts a large (23830) 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
  • Modifies rc script 2 TTPs 1 IoCs

    Adding/modifying system rc scripts is a common persistence mechanism.

    persistence
  • Changes its process name 1 IoCs
  • Reads runtime system information 2 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/elitebotnet.arm7.elf
    /tmp/elitebotnet.arm7.elf
    1⤵
    • Modifies rc script
    • Changes its process name
    PID:641
    • /bin/sh
      /bin/sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/elitebotnet.arm7.elf bin/systemd; chmod 777 bin/systemd"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:642
      • /bin/rm
        rm -rf bin/systemd
        3⤵
          PID:644
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:645
        • /bin/mv
          mv /tmp/elitebotnet.arm7.elf bin/systemd
          3⤵
          • Reads runtime system information
          PID:651
        • /bin/chmod
          chmod 777 bin/systemd
          3⤵
          • File and Directory Permissions Modification
          PID:653

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • /etc/rc.local
      Filesize

      96B

      MD5

      693b25352a9477882662df0d08eac50c

      SHA1

      1af94224492224d7a136fd8c5f769a8af7e55b68

      SHA256

      df474ba7a706f81221a7ef57df00a94c47676c481dc1a689e8df80451aa05e06

      SHA512

      4ebf9251bcdb6cf694e69ecec3ab669e30afe5fa14af4a80db0b44bf05264a336a6292302955c044ed299a8085fea3163c7d7bbb27e03ddd3c49e213e2b3721d

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