Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcdeafa7f147051d…

MALICIOUS

PDF

44.6 KB Created: 2020-08-10 16:41:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 428a9f0201020c0bb8606cd89cad19f7 SHA-1: 7cacb5b7389393ef02388747908f41f749640616 SHA-256: bcdeafa7f147051d81e797780e6d7d5f5a18bbbfc206800a9e18983b1b4271e2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links, 'https://ttraff.com/pify?keyword=bosquejos+de+sermones+bautistas+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the same URL and other PDF links, suggesting a coordinated effort to distribute malicious content through a link farm. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination.

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=bosquejos+de+sermones+bautistas+pdf In PDF document text
    • http://files.boisgoetrehen.com/uploads/1/3/1/4/131454286/442e688b0c640.pdfIn PDF document text
    • http://files.rmhsperformingarts.com/uploads/1/3/2/7/132741029/7099265.pdfIn PDF document text
    • http://files.faithutah.com/uploads/1/3/1/8/131857544/f87700c.pdfIn PDF document text
    • http://files.startatravelbusiness.com/uploads/1/3/1/4/131453543/ribopusub_jekefederam_bogofowadoku.pdfIn PDF document text
    • http://files.stresswiseatwork.co.uk/uploads/1/3/1/6/131607163/faxuvavorano_rasunab_saroxarutenig.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/1/0432/9085/3531/files/rudadebeminamebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/pumivilubixoruwitejot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0305/2191/files/vaperigaxevavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2347/4583/files/boris_yeltsin_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/liboff_quantum_mechanics_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0644/3176/files/81779754648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/46382826696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2119/files/search_algorithms_in_artificial_intelligence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kesutuzijakakewinepubad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1354/files/fadozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/jibumuzuroz.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_off000068ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68EE 5548 bytes
SHA-256: f3c7344a4cb230b1861eb8549484bc7bc7a1d534e26d635fc60edd5cc948480c
font_01_sfnt_off00007bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB0 13004 bytes
SHA-256: 6dc34d2e0181ba9bf902077d55bdf3a2b2007bc09b7d8d180d1a38e8a2190071

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