Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e3f672c382438c…

MALICIOUS

PDF

51.5 KB Created: 2020-08-08 03:23:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8eab764e4f120d7c214f2e4fb01a22a5 SHA-1: 6c5dfb22b51f97012396daaaa3c4c2ae8d9bc88e SHA-256: 87e3f672c382438c875a18888acfdea6486283a0fa90bebd79176265fa279ce5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. Specifically, the link https://ttraff.ru/pify?keyword=baixar+bncc+educa%25C3%25A7%25C3%25A3o+infantil+pdf is identified as a malicious redirector. This suggests a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious sites.

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=baixar+bncc+educa%25C3%25A7%25C3%25A3o+infantil+pdf In PDF document text
    • http://files.bullittownersclub.com/uploads/1/3/1/4/131408245/0b0cd44.pdfIn PDF document text
    • http://files.everlastinglovechurch.org/uploads/1/3/1/4/131437619/duporawojuw.pdfIn PDF document text
    • http://xaxebikoj.vanessakeel.com/uploads/1/3/0/7/130739678/2905936.pdfIn PDF document text
    • http://files.fifthavenuechristian.com/uploads/1/3/2/7/132710750/2420693.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/1/0435/6397/4805/files/faradowasivotebuvomota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8925/5847/files/kabezimufopefinabegada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4294/6728/files/bonus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3712/1951/files/buchungsbesttigung_hotel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/54210795539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3102/0198/files/nexesul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/classical_mechanics_taylor_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4500/8039/files/cch_prosystem_fx_engagement_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2854/files/10938756446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0393/5911/files/nufaxasasupewonudukuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/76385164513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/faxexutomiwan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/fasuluzawo.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_off00008682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8682 5728 bytes
SHA-256: 1036ea17270367781c6dfe976f3219b32d6bb362c7fc22057459b84dba01a7d6
font_01_sfnt_off00009931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9931 12504 bytes
SHA-256: 94f7dc7ba2b1a1050b1dbbbca6efdd4ca32d4b180346c45ed6c6d647efa4eae8

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