Overview

overview

10

Static

static

10

jklarm7.elf

debian-12-armhf

9

Analysis

  • max time kernel
    52s
  • max time network
    158s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20240221-en
  • resource tags

    arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    10/03/2025, 00:22

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General

  • Target

    jklarm7.elf

  • Size

    78KB

  • MD5

    1e6a78dceb039f78e0f0d000357d2b0c

  • SHA1

    a170a1951446fcf79019fd70306e942fcab517a7

  • SHA256

    17bf13198278d1613f8fc3d44d0c2b307dedcb6b8d1b269c00f5d361ffa43ee9

  • SHA512

    9a95211e8a6074f0d5c4884e2cbc3988bc6eaa2b9bf856f5ba6f7bf92dfed6cba26d13a69dc3b92988941b092bc155428bb8709cbccccc1edd5c470c9fe9f8ad

  • SSDEEP

    1536:C2nyOUzvAh2zlN0VDR/CYrgAzj8U4zPszOvhvxVFSasQadlgEiXGmR+:tgIh40VDR/CYUIWzPszkhvxVFSa3FGmY

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (168176) 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
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Renames itself 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads process memory 1 TTPs 31 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 1 IoCs
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery

Processes

  • /tmp/jklarm7.elf
    /tmp/jklarm7.elf
    1⤵
    • Modifies Watchdog functionality
    • Renames itself
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    PID:704

Network

MITRE ATT&CK Enterprise v15

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