Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbfb2dbafe70f971…

MALICIOUS

PDF

54.4 KB Created: 2020-08-21 12:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11e89762bd0e3d496e52e09f7c1a8aad SHA-1: ae0bc748c51249b4f201c94604f35671de31b8b5 SHA-256: dbfb2dbafe70f97170c51bf940dfde5dc8cb99e1ffda750ab9904f242e5f2834
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that, combined with the heuristic firings, strongly suggests an advance-fee scam lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=boska+komedia+dante+alighieri+pdf, which is likely used to redirect the user to further malicious content.

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.cc/pify?keyword=boska+komedia+dante+alighieri+pdf In PDF document text
    • http://files.blackngreenphd.org/uploads/1/3/1/3/131380688/sajijomulele-lafug-dagafevemope.pdfIn PDF document text
    • http://files.newlightfotodesign.com/uploads/1/3/0/8/130813111/7154933.pdfIn PDF document text
    • http://xofogoje.sheeptales.org/uploads/1/3/1/3/131380739/449ebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4336/2715/files/annotating_a_book_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/archeology_of_knowledge_michel_foucault.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/piwutenuloli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/cantico_di_frate_sole_testo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1119/3501/files/factors_affecting_prenatal_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6652/3809/files/preeclampsia_and_eclampsia_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7716/3416/files/dipew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/patofokubilis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/rujunanugusutesitijavep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4342/2359/files/nisopowawikofokexemawop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1424/8857/files/the_cask_of_amontillado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/66574991576.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000089b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B1 5356 bytes
SHA-256: 9214b9617c87f1b6acb2d8517a2637037ac5db4e99902c3feaecf52067bc621a
font_01_sfnt_off00009bb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB5 10248 bytes
SHA-256: a8d59450983661bedd3141d6b6cc4334791f8cbaeb86351af58906e23e830aad
font_02_sfnt_off0000bea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEA0 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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