Overview

overview

7

Static

static

1

edu.arm7.elf

debian-12-armhf

7

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20250619-en
  • resource tags

    arch:armhfimage:debian12-armhf-20250619-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    05/10/2025, 22:28

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General

  • Target
    edu.arm7.elf
  • Size 111KB
  • Sample251005-2d1eescp2v
  • SHA256 b622a7b848a9846e2af4f8f985777bb8d095b8eb56d57a502f97d446cfe82e9b
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Reads process memory 1 TTPs 9 IoCs

    Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

    credential_access
  • Changes its process name 2 IoCs
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 52 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • Writes file to tmp directory 2 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/edu.arm7.elf
    /tmp/edu.arm7.elf
    1⤵
    • Deletes itself
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    • Writes file to tmp directory
    PID:801

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        .system_temp
        • Path /tmp/.system_temp
        • Size 8B
        • SHA256 361b5f820b9a1c20acc8480a8e734464df9c1df565144e79c9a41db360d7808c
        • MD5 SHA1 SHA512
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