Malicious PDF — malware analysis report

Static analysis result for SHA-256 68855caa4b0ec7f7…

MALICIOUS

PDF

79.5 KB Created: 2021-03-18 04:00:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f460c5f2373cf984dd5f0035194fec72 SHA-1: 9e5ace2fab8819230a7165e9ed36fd0397d40310 SHA-256: 68855caa4b0ec7f7fbeb3bb57ad63169c32bddfd6e5a58587ffa76752227f958
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://crophysi.ru/strik?utm_term=financial+statement+analysis+project+report+for+mba PDF link annotation
    • http://dajexori.mypressonline.com/who_are_the_best_aa_speakers.pdfIn PDF document text
    • http://nitesufi.sportsontheweb.net/tempus_fugit_grandfather_clock_manual.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/amtrak_california_zephyr_schedule.pdfIn PDF document text
    • http://safanuzimu.22web.org/rosalind_hursthouse_on_virtue_ethics.pdfIn PDF document text
    • http://selizixid.iblogger.org/is_there_any_lamborghini_in_india.pdfIn PDF document text
    • http://nimidarizul.22web.org/fovupadituje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d482499c-f4d7-4cbf-9761-c1b2e1803b0e/the_other_side_of_the_door_full_movie_download_in_hindi_filmyzilla.pdfIn PDF document text
    • http://xamukipadu.myartsonline.com/medical_fitness_certificate_for_college_admission_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/68148825613.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/chak_de_india_movie_in_tamilrockers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e84008a-89b3-4e54-bc66-091e94377d90/is_ahsoka_tano_going_to_be_in_the_mandalorian_season_2.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/gipigejixuxibif.pdfIn PDF document text
    • https://s3.amazonaws.com/mosezavor/browning_a500_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/vurefogetukoxisa.pdfIn PDF document text
    • http://fedonefekipide.myartsonline.com/c._r._e_form_two_notes.pdfIn PDF document text
    • http://jusopetikikij.onlinewebshop.net/retire_early_with_real_estate_chad_carson.pdfIn PDF document text
    • http://gagolabirej.atwebpages.com/bubiruvureb.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/64704129164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dcd048d-b38a-4c72-84fc-46119d2810a7/74316117388.pdfIn PDF document text
    • http://vasakuzepilaxi.onlinewebshop.net/97366943966.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF537 5432 bytes
SHA-256: 2bbf9c2033572a418b8ff56fa1be01c2f76981e1de249aa6bace41a35e4d1afd
font_01_sfnt_off000107a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A9 11468 bytes
SHA-256: 82b14acd90438b8aabd870275aa3b6979c9765e64e5c569725b2bca2dc723d4f

Open this report in the interactive analyzer, or submit your own file for analysis.