Malicious PDF — malware analysis report

Static analysis result for SHA-256 6285b530677414c7…

MALICIOUS

PDF

38.8 KB Created: 2020-08-04 15:35:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1ddbad9cf28e97fd9376908b00dda26 SHA-1: 77d275b944a37b1a51d30d2ac466d1af7855e993 SHA-256: 6285b530677414c7212bbe6057db5cf82e254530806fc497a324e2a10f1be29c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, with one critical heuristic identifying it as a malicious redirector pointing to 'ttraff.com'. This redirector is likely used to obscure the final malicious destination, which is part of a link farm designed to appear as legitimate content. The ML classifier strongly supports the malicious nature of this PDF.

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=sintesis+albumin+pdf In PDF document text
    • http://files.raveneyeimagery.com/uploads/1/3/2/3/132302871/nagomo_pewamuf_jasug_lepowepojijenu.pdfIn PDF document text
    • http://files.richfeenstra.com/uploads/1/3/2/6/132696111/vojok_suzizomisa_witilexusupe_nawetede.pdfIn PDF document text
    • http://files.dbdfilmservices.com/uploads/1/3/1/3/131379312/4146486.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/1/0432/8125/2512/files/64633862536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3357/files/getesukuxoxutufesuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/7286771435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6059/9701/files/best_business_plan_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5687/4151/files/30419584003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9354/7424/files/ed_sheeran_x_album.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/sorekativuzujajeguji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7844/9307/files/paychex_employee_information_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/tigakubetenumiruxelebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9236/8798/files/kafofaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/15567318693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/4564441189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0604/2013/files/nenokigilomezerikar.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_off00005379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5379 5336 bytes
SHA-256: 72089fdf9ff287ca8d86b661d6dd8627ebc1ef7958a42e0f3a138f5296302920
font_01_sfnt_off00006589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6589 12964 bytes
SHA-256: af612cfe1f431b91bc3eaba80c9e86fbb0ffb0af7d5f2d881217ef4d98dea31d

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