Malicious PDF — malware analysis report

Static analysis result for SHA-256 05bc67dff0d745f4…

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 20:43:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6d45934d7bac4e1a8076c794b8b1f52 SHA-1: 3277d95ea9e5d0a66f585e531de6b4a66179b6d8 SHA-256: 05bc67dff0d745f487183ecbc614956eb514d3200c2728beb7cdff55ddaf0e2d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that is flagged as malicious. The document body and heuristics indicate a lure related to 'arquitectura high tech caracteristicas pdf', likely intended to trick users into clicking through to malicious sites. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially harmful content, possibly as part of a phishing or scam campaign.

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/wb?keyword=arquitectura%20high%20tech%20caracteristicas%20pdf In PDF document text
    • http://mifim.frontierdi.com/uploads/1/3/1/4/131437515/9134515.pdfIn PDF document text
    • http://files.czech-club.co.uk/uploads/1/3/1/8/131871984/xarulapexefas.pdfIn PDF document text
    • http://files.midsouthdistributingusa.com/uploads/1/3/0/8/130813301/rogetuzonigeso_xokikozurujero_fawifekexib_zugoje.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/1/0431/1557/7504/files/anllela_sagra_workout_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3617/1679/files/basic_guitar_chords_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/supermarket_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3098/5376/files/logabugoladabalovogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/partnership_agreement_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3944/0543/files/gidejojulere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/nagadazuzizajugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0210/1923/files/sabaxojamapaviriguvipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48975286879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7478/0312/files/54444790353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/vikings_athelstan_s_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4170/8453/files/arrian_anabasis_of_alexander.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 3

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_off00006f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6A 5500 bytes
SHA-256: d41cd406f8a590518bc8e403c36716641b1d36b8924e6718a6e7f423307a1acd
font_01_sfnt_off00008214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8214 10708 bytes
SHA-256: 0a20a4d822af3d306c03b3880a6faeb21a8076bf0648d2440792149a5aa9526a

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