Overview

overview

10

Static

static

10

jklarm7.elf

debian-12-armhf

9

Analysis

  • max time kernel
    116s
  • max time network
    162s
  • 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
    07/03/2025, 12:30

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    jklarm7.elf

  • Size

    78KB

  • MD5

    94a09ed2ea88808c8cd5652d3f9b9926

  • SHA1

    f543a5233813c5e064f1e59ccb5b1d0cfa022fbb

  • SHA256

    bde633cd452fed01853c937dc5393cd8580d7ebfccdae3df9260e38d051aba8a

  • SHA512

    4622ed6b0ec8ad03c09fec7a7ce2e34914549c0f9a5c9a1b009b7907954659128f3af0c0ab6d170abec2734b83f396abaefd467ddba89ee568e708d1a6aaa405

  • SSDEEP

    1536:FxnQlhrVZoKlI8Kviaw4oRnXp9t4KBfpAL6TgRp9dqCcQndlNci7u1yce:khhZi8Kviaw40nX+KBfpIIgRp9dqCB1H

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (177153) 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 6 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 6 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:708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads