Analysis

  • max time kernel
    149s
  • max time network
    181s
  • 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
    05-07-2024 01:19

General

  • Target

    4a8d0ddc053f2b876bef239524557be093a08154c035cf1c2d4cb1bc27693bbd.elf

  • Size

    40KB

  • MD5

    c99458fc9a49677e024216579ef02a94

  • SHA1

    26fff5fd74499baa447da3833251a6f5bc1a511d

  • SHA256

    4a8d0ddc053f2b876bef239524557be093a08154c035cf1c2d4cb1bc27693bbd

  • SHA512

    9a3adf5ac12c239a208fee391830da093d377573127d499aa7488b070552242efc295b3ffbd35f3f3bd07906591eae51cb1dafc8ab00ffa7f375d29854da538c

  • SSDEEP

    768:9iS+UJFoznkDHzYOkd1W06QNDU3A58ScQ8zD+G7nI8sR:h+UgkYOkzWKUU4PDJnI8sR

Score
9/10

Malware Config

Signatures

  • Contacts a large (4699) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Renames itself 1 IoCs
  • Unexpected DNS network traffic destination 5 IoCs

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

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

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

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • /tmp/4a8d0ddc053f2b876bef239524557be093a08154c035cf1c2d4cb1bc27693bbd.elf
    /tmp/4a8d0ddc053f2b876bef239524557be093a08154c035cf1c2d4cb1bc27693bbd.elf
    1⤵
    • Modifies Watchdog functionality
    • Renames itself
    • Enumerates active TCP sockets
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    PID:644

Network

MITRE ATT&CK Enterprise v15

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