Overview

overview

10

Static

static

10

arm7.elf

debian-9-armhf

9

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240418-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    09-11-2024 17:52

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General

  • Target

    arm7.elf

  • Size

    147KB

  • MD5

    60eb053a327610867e602054a599fece

  • SHA1

    5779d2d820010845048b7d674fa2aef670feeb21

  • SHA256

    7b7abb5de56c4244a7ce22680ee1e85d7632b2b66ff020babffb0ae78abce65b

  • SHA512

    ee02c52a057efd71aa953bbb776ee556fac9b0aeaa9f9c175e8bfb235d29ef0306cb1668015558c699fa622c3f72c2eae80423045d460e3cbb3ce32c92561e1a

  • SSDEEP

    3072:CJLce3pC5mj7naLHbz4N9GUJURIJ1FEEXkkTM/9oIMY:CJLcefnaLHbz4NMUJdHEEXkYM/9LMY

Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (37368) 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
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 1 IoCs
  • Reads runtime system information 64 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/arm7.elf
    /tmp/arm7.elf
    1⤵
    • Changes its process name
    • Reads runtime system information
    PID:648
    • /bin/sh
      /bin/sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/arm7.elf bin/systemd; chmod 777 bin/systemd"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:650
      • /bin/rm
        rm -rf bin/systemd
        3⤵
          PID:651
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:656
        • /bin/mv
          mv /tmp/arm7.elf bin/systemd
          3⤵
          • Reads runtime system information
          PID:658
        • /bin/chmod
          chmod 777 bin/systemd
          3⤵
          • File and Directory Permissions Modification
          PID:660

    Network

    MITRE ATT&CK Enterprise v15

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