Overview

overview

10

Static

static

10

arm.elf

debian-9-armhf

9

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240729-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    16-12-2024 09:24

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General

  • Target

    arm.elf

  • Size

    65KB

  • MD5

    00379715ee052ead8d691231a33b2dab

  • SHA1

    1060f71db35d6fa514e778db987a96e0f3a6fb3d

  • SHA256

    e85edd53f53dede79af2c62b8b8f4e817118106abbb314415eae6d678b1cd133

  • SHA512

    99a326a8b7acedf6bf56af08e800d76ed45822426b00c657fcc59e396538b465007ecd16fd2cff1f3ce9f35173d78032b3101b428c771bfb9f2aa7f8baac2e07

  • SSDEEP

    1536:rNHlxvmiiBmLv/RN/596y04BxF+2YWfwz2vvW+:rNprxIn4BxF+5sbv7

Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (36851) 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 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/arm.elf
    /tmp/arm.elf
    1⤵
    • Changes its process name
    PID:639
    • /bin/sh
      sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/arm.elf bin/systemd; chmod 777 bin/systemd"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:640
      • /bin/rm
        rm -rf bin/systemd
        3⤵
          PID:641
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:651
        • /bin/mv
          mv /tmp/arm.elf bin/systemd
          3⤵
          • Reads runtime system information
          PID:653
        • /bin/chmod
          chmod 777 bin/systemd
          3⤵
          • File and Directory Permissions Modification
          PID:654

    Network

    MITRE ATT&CK Enterprise v15

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