Overview

overview

10

Static

static

10

.5r3fqt67e...ps.elf

debian-9-mips

9

Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240611-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    10/12/2024, 17:12

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General

  • Target

    .5r3fqt67ew531has4231.mips.elf

  • Size

    252KB

  • MD5

    ba859a4911df1d2a7268e39726723faa

  • SHA1

    02bf2b506d6f5cfc370ce4589dfcefb6d82a311a

  • SHA256

    fe9cb775282756fc89cb3a58c58b5540f9083f887425868c5f5c27bcb897ec38

  • SHA512

    ede0b2279d269c02d6e211dca653bc3a691f3603f44a758ea31a04093d6e49fe2ebb9e4d32c5adbe88f6d69c213fd24c57a8135b820bd9ed754c27d1a84fb74a

  • SSDEEP

    6144:lxiy2m8siLgu2MJJyiZ2QcCa6PgwRZd9+:KNgaZThd9+

Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (115636) 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 Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Changes its process name 1 IoCs
  • Reads runtime system information 3 IoCs

    Reads data from /proc virtual filesystem.

    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 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/.5r3fqt67ew531has4231.mips.elf
    /tmp/.5r3fqt67ew531has4231.mips.elf
    1⤵
    • Modifies Watchdog functionality
    • Changes its process name
    • Reads runtime system information
    • System Network Configuration Discovery
    PID:698
    • /bin/sh
      sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/.5r3fqt67ew531has4231.mips.elf bin/systemd; chmod 777 bin/systemd"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:700
      • /bin/rm
        rm -rf bin/systemd
        3⤵
          PID:702
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:707
        • /bin/mv
          mv /tmp/.5r3fqt67ew531has4231.mips.elf bin/systemd
          3⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          PID:709
        • /bin/chmod
          chmod 777 bin/systemd
          3⤵
          • File and Directory Permissions Modification
          PID:711

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads