Overview

overview

10

Static

static

10

belks.x86.elf

ubuntu-18.04-amd64

9

Analysis

  • max time kernel
    148s
  • max time network
    137s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240729-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240729-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    29/10/2024, 19:06

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General

  • Target

    belks.x86.elf

  • Size

    64KB

  • MD5

    a7e3298f28b271d5ee7eb6a6d271b4b3

  • SHA1

    a5b783060f6d03f4270806ff978301c092c7bc90

  • SHA256

    a550845280ea8fdc0880af246afe056162034152be4ec895594062ade43f7f7b

  • SHA512

    b1309f20fa88bfd7d2f38a7eae016cc5749e48ac4e3d15c086d1d48df5b40ae33d4db3c608ab25a2dc81caaf27602728904945fb9e595d28370369a5e4d97bac

  • SSDEEP

    1536:QPpPWnPZz5ZEbHRVOF2fMg5bhQURqPlouaj7GDrDt5tVS+l:yp+nxz5SbHfO8EihdRqPFanYDtF9

Score
9/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (227523) 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
  • 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

  • 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/belks.x86.elf
    /tmp/belks.x86.elf
    1⤵
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    PID:1505

Network

MITRE ATT&CK Enterprise v15

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