Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f214ca387a180ac…

MALICIOUS

PDF

46.2 KB Created: 2020-07-31 17:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1327926a99f05b0d1eb8227e886b530c SHA-1: d684e8fd958a0d1077e40850aaada62e26845f22 SHA-256: 3f214ca387a180acaa60a7c8e00ffdd20cc2718cfe433e8d9765821aca308b76
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it features a large number of embedded external PDF links, a technique often used for SEO manipulation or to distribute further malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=shape+of+my+heart+tab.

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.ru/pify?keyword=shape+of+my+heart+tab In PDF document text
    • http://files.makingmemories.studio/uploads/1/3/2/7/132710776/lesipidop.pdfIn PDF document text
    • http://files.tolgardgames.com/uploads/1/3/0/8/130874055/6836620.pdfIn PDF document text
    • http://files.nationwidecreditsolutionsinc.com/uploads/1/3/1/0/131070618/52676e1f35.pdfIn PDF document text
    • http://files.pitzeradventures.com/uploads/1/3/0/8/130874566/senelijejiteniv-fetul.pdfIn PDF document text
    • http://files.creativeyogis.com/uploads/1/3/1/4/131453114/e58a20.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/1/0433/5029/4678/files/zuniwimefivanavejasulugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2804/5209/files/71136319377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/wewuwadoxuvutit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2067/files/46247801960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/veligepuxefedugikaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/zedabotaweramij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/49950775514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/jefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/gegiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0872/1049/files/52583804055.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_off00006a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A10 5276 bytes
SHA-256: d0eb0cdf613d45484fbdb774fabc6a1f9af68c73e779f090fa0dc930c3aafae3
font_01_sfnt_off00007be7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE7 14924 bytes
SHA-256: defccbbc52705f14ceade6a920690d487630d4c156a756a9a05d74f6db966508

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