Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3607035007bef3f…

MALICIOUS

PDF

41.9 KB Created: 2020-10-08 17:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 330abe0fcc210667518e3e2f30f1fe70 SHA-1: e1093ea7df467accfbb7ebcc16f90e86aaec6942 SHA-256: a3607035007bef3fc025d3333ad1a143616a985eebbaea5e85da8574107f5af5
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.link/pify?keyword=tablet+or+laptop+for+college+2015 In PDF document text
    • https://site-1036885.mozfiles.com/files/1036885/dokofidolavinubapudumum.pdfIn PDF document text
    • https://site-1040280.mozfiles.com/files/1040280/ridepijajafiwifirolok.pdfIn PDF document text
    • https://site-1036744.mozfiles.com/files/1036744/52832919872.pdfIn PDF document text
    • https://site-1042181.mozfiles.com/files/1042181/lipuwefenajurulejim.pdfIn PDF document text
    • http://zusomopus.danbrambilla.com/uploads/1/3/1/3/131383544/beguxogi_befozawipixe.pdfIn PDF document text
    • http://files.blandinepluchet.com/uploads/1/3/1/8/131857270/5d98e.pdfIn PDF document text
    • http://files.manescrunch.com/uploads/1/3/2/6/132695802/82db4e1.pdfIn PDF document text
    • http://files.fortitudegc.com/uploads/1/3/0/7/130740497/bazexukukaketup-zuzasugina-sifoxepogon-vuzixasivawixeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1392/2201/files/31748357651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4958/1724/files/jvc_marshmallow_wireless.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2986/2816/files/jetblue_pet_carriers_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1072/2464/files/furniture_and_appliancemart_wausau.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3625/4101/files/halo_3_terminals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0420/1624/files/54225779186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/8833/9878/files/96777403387.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6309 5544 bytes
SHA-256: 9bc003d9313bc0e54a9535a5b878c5574b27a4dcd4c77809cb3cd1fe22dfef52
font_01_sfnt_off000075fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75FD 10736 bytes
SHA-256: d5a2b88e3506ac0139524f4d27dbfc00f961ea8df835a6e5f6604a37145ca9e5

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