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Overview

overview

10

Static

static

10

splarm7.elf

debian-9-armhf

9

Analysis

  • max time kernel
    139s
  • max time network
    155s
  • 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
    06/03/2025, 11:17

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General

  • Target

    splarm7.elf

  • Size

    78KB

  • MD5

    a8c01822dd78feded3b335735aed537b

  • SHA1

    41c85552054f07fc42c2f2a6b381de525f4e7bda

  • SHA256

    1f429e2c3be03639b683b89caab099f6a1c5047a089c017d9d8e86d0ce12e48b

  • SHA512

    9ba831769961ae82f4dd76cbd647fa6fa29a5807721443eba7318193b545a78181dcff9ea5b596c16a79828e8e8de255c37dc66b3d98f3f7e181c7fd27b02b02

  • SSDEEP

    1536:FBnwFBrlZoytA8Sv6HP4oI7p9R4Kxfp421gVBl9qy8QudlLMibWRSU+:EBhZ68Sv6HP4j7KKxfp4KgVBl9qy81W2

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (66558) 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 64 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/splarm7.elf
    /tmp/splarm7.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:654

Network

MITRE ATT&CK Enterprise v15

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