Malicious PDF — malware analysis report

Static analysis result for SHA-256 7980038729b9b165…

MALICIOUS

PDF

56.0 KB Created: 2020-08-10 10:28:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 001dfdf2b19c46ec1a04ffaae055c927 SHA-1: cad0a8fef96f24596e658dcb43e4cb4b30a0fdf0 SHA-256: 7980038729b9b165d2a24f3b6de9e63be443c0c3a7460501982ff84b16fc2c1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple heuristics indicating it's a malicious redirector, specifically designed to lead users to a link farm. The embedded URL 'https://ttraff.com/pify?keyword=metabolismo+de+los+carbohidratos+lipidos+y+proteinas+pdf' is flagged as a known malicious redirector. This suggests the document's primary purpose is to facilitate phishing or malware distribution by directing users to potentially harmful content.

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.com/pify?keyword=metabolismo+de+los+carbohidratos+lipidos+y+proteinas+pdf In PDF document text
    • http://files.winterra.ca/uploads/1/3/1/0/131070894/vitesi-kuwus-fikudeworodub-fopujazunap.pdfIn PDF document text
    • http://files.english.shenfieldlearning.com/uploads/1/3/0/7/130775448/pogedebidejun-xuramomatoka-gibepipuxut-majidowepaf.pdfIn PDF document text
    • http://files.thedigestivehealthclinic.com/uploads/1/3/0/9/130969254/nujuwiduxibiwozeveni.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/1/0452/9078/2881/files/real_estate_buyout_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/64270491217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/21507361669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/39414240551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/masafuboxedami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9236/8798/files/vezutoketigozipavezulam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/98732021776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/99219055729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9488/4000/files/pusifulevigusajokubani.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_off00009b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B12 5644 bytes
SHA-256: bcc550758fd8e5d8b483d4cf275dbbbb12acf55c5ab851e86d89c54cedc1fff7
font_01_sfnt_off0000ae22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE22 10656 bytes
SHA-256: 34037ce564a5bd42a0bcade548e37fd2bda9bdaddb101295e605a8b8bed7af27

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