Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd75b0e370b3875…

MALICIOUS

PDF

46.0 KB Created: 2020-08-26 19:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6730d75acd4e1a48a40432545eed203a SHA-1: 590b3f5a1fe04a604f041c3d6724476dc2f696ca SHA-256: dcd75b0e370b3875b8507679a43380fb07cd331a229c446f9198c239110dc6b8
254 Risk Score

Malware Insights

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

The PDF document contains numerous invisible links designed to trick the user into downloading a payload. The primary malicious URL identified is https://ttraff.com/pify?keyword=wintv+v7+cd+2.5c.iso, which appears to be a redirector to a payload. The document also contains a large number of links to Shopify-hosted PDFs, likely for SEO poisoning to improve search engine ranking and visibility.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • 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=wintv+v7+cd+2.5c.iso In PDF document text
    • http://files.braunsinc.com/uploads/1/3/2/6/132696483/f514c07.pdfIn PDF document text
    • http://files.shirehistory.org/uploads/1/3/0/9/130969200/fimakomukuw.pdfIn PDF document text
    • http://files.alldonemarketing.com/uploads/1/3/1/8/131856877/ac7e7abcef82.pdfIn PDF document text
    • http://files.immortalize-your-moments.studio/uploads/1/3/1/6/131606890/xevawewonebusa.pdfIn PDF document text
    • http://nagajiba.gaenvirothon.com/uploads/1/3/1/4/131453130/7f66e00faf0b0e.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/1/0427/7813/2636/files/calvin_cycle_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5667/6507/files/loan_payment_plan_template_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/kugazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7129/9999/files/11600951358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/0070/7490/files/39175584761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/fuketusegesevufuzar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7719/7221/files/wigegonigexevu.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_off00007734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7734 5036 bytes
SHA-256: 1776ad584fc3b6f21c2ea2a6ecead749a5f420f71940dad0b952dca784638dbc
font_01_sfnt_off00008890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8890 10192 bytes
SHA-256: e6758a8483a82be82e5a0b2556cd32d3f88690d5d5939079cfc11c0887ca959d

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