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Overview

overview

10

Static

static

10

jklarm7.elf

debian-9-armhf

9

Analysis

  • max time kernel
    47s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    01/02/2025, 13:42

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General

  • Target

    jklarm7.elf

  • Size

    77KB

  • MD5

    45a33a3f566fe9a6ee1e492d1905634d

  • SHA1

    2839588f169759f13e9377f05128d862e7c00f6f

  • SHA256

    84450bcfa08e7c33b1ea94302457a478b394ef0996f626ee5f1c60ab83024756

  • SHA512

    501a80cf158c3d87cfa1e86c0730dc09f31e206f84ea9d7d1468b2fc08e9366c7e6d1609d6035d64c08842fb480403dd445d68de6e36061625d6780e17d83505

  • SSDEEP

    1536:Zxn7gLqXIQHj0jLwdeEyQqF1G4/BSc9Zg9ZUzMVy9r2UQZdljuit+AG2:kLgIZjLqeECl/BSyIWzMVy9r2Nd+AB

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (109614) 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
  • 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
  • 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 62 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⤵
    • Deletes itself
    • 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:649

Network

MITRE ATT&CK Enterprise v15

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