Overview

overview

10

Static

static

10

3231a0ef57...7e.elf

ubuntu-18.04-amd64

9

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240508-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240508-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    16-12-2024 02:10

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General

  • Target

    3231a0ef57c7107fefb310e12f4d2994fc9d0afd9c76148ce1cd409d5cb5dd7e.elf

  • Size

    75KB

  • MD5

    c70d6d70685235b94fed5ec73aed3b2c

  • SHA1

    cc9ebae95a7c15a670388fc44e0fd41547c17e18

  • SHA256

    3231a0ef57c7107fefb310e12f4d2994fc9d0afd9c76148ce1cd409d5cb5dd7e

  • SHA512

    e3fb2b71ad3a106724355eeae05f20f483ebd5c78e36d93c2a2ad7137bb6fd95b3c79d916322a99b2819c07ee00bc132cf1bad1735edc3a02e4144dd5c408954

  • SSDEEP

    1536:dvBGpSzKkubpUa2jecqCR/JYHqDIw+e6+MFOPRkTZRbXXTzpwbZnR+5:hcpHblUaBcPNeHqEw36FOPOZRTXTNwbf

Score
9/10
defense_evasiondiscoverypersistence

Malware Config

Signatures

  • Contacts a large (23999) 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/3231a0ef57c7107fefb310e12f4d2994fc9d0afd9c76148ce1cd409d5cb5dd7e.elf
    /tmp/3231a0ef57c7107fefb310e12f4d2994fc9d0afd9c76148ce1cd409d5cb5dd7e.elf
    1⤵
    • Modifies rc script
    • Changes its process name
    PID:1496
    • /bin/sh
      sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/3231a0ef57c7107fefb310e12f4d2994fc9d0afd9c76148ce1cd409d5cb5dd7e.elf bin/watchdog; chmod 777 bin/watchdog"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:1497
      • /bin/rm
        rm -rf bin/watchdog
        3⤵
          PID:1498
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:1499
        • /bin/mv
          mv /tmp/3231a0ef57c7107fefb310e12f4d2994fc9d0afd9c76148ce1cd409d5cb5dd7e.elf bin/watchdog
          3⤵
          • Reads runtime system information
          PID:1500
        • /bin/chmod
          chmod 777 bin/watchdog
          3⤵
          • File and Directory Permissions Modification
          PID:1501

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • /etc/rc.local
      Filesize

      95B

      MD5

      ea1dfdca9880b1a10b7368aa0dfe2aef

      SHA1

      b945ec5d90fc07016b606cc10651203d058bfe88

      SHA256

      fb51f4b2f2f0c8eadb95244b3a602d1355de8e4d578375dd7736effa1501fb1a

      SHA512

      3a4fc8238729102268cff2a88f7ce0d3424a0739a94feb33b725d2f54dca8659427c9f393a1782f16a06e752bfca4e98e761427bb7ef90f4fbfeacbedd0b7b47

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