Malicious PDF — malware analysis report

Static analysis result for SHA-256 82696c1bea0d90c5…

MALICIOUS

PDF

72.6 KB Created: 2021-03-07 04:41:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d3b22196450d3678204a2ebf63377f1e SHA-1: af1010d592b73df9ec0bf8836b0c9e3df9eae754 SHA-256: 82696c1bea0d90c523c7dc68ee58768eb777d70accd17d8a2c4307bb96bd1050
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://soxebez.ru/wix?keyword=probability+word+problems+worksheet+7th+grade PDF link annotation
    • http://shothard.site/hill_rom_bariatric_bed_service_manualajx0g.pdfIn PDF document text
    • https://setuzenizenu.weebly.com/uploads/1/3/5/9/135973655/b9c8c5022.pdfIn PDF document text
    • https://saxuvelimeno.weebly.com/uploads/1/3/4/4/134480096/4679083.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421330/normal_5fe9a89c61cdf.pdfIn PDF document text
    • http://gratoramaa.space/hunger_games_book_vs_movie_compare_and_contrastqwvxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459034/normal_6030644bb6892.pdfIn PDF document text
    • http://azules.ru/zazakowutezebao46e.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/a45a7f6c-228e-4f07-ac4e-1aed50045905/safuselifaxeretifojaruw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80944883-6d58-456c-918a-9676817936e8/el_nombre_de_jesus_es_poder_letra_y_acordes.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/axe_io_brutal_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/5793566755.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/avengers_infinity_war_wallpaper_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/react_native_ecommerce_template_free_github.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d79a6a8-517c-41d6-a052-844b8d734390/esperanza_renace_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e1afb7e-cc46-4bee-9305-0fd8dba770a7/percy_jackson_and_the_sea_of_monsters_summary_shmoop.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/rochester_post_bulletin_heard_on_the_street.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/sagipeduvidurubanebun.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/formal_letter_uk_example.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/manuale_stampante_hp_photosmart_c3180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b50f5dc-1b9d-47cd-bd80-2e8416bca955/digital_communications_strategist_salary.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/62892635022.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_off0000dbd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD5 5852 bytes
SHA-256: f598c4658a13e3072ad8df519880e4034c87142f2364d27241ad497aa34e2315
font_01_sfnt_off0000efb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB3 10856 bytes
SHA-256: 3b9cf6d8965b87a48d6f05d25a9494a6dd12c990a2028090f9589add167361dd

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