Malicious PDF — malware analysis report

Static analysis result for SHA-256 055dd79fa669f920…

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 13:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c61ae324ec1d77e16b568a1eb49ee2a8 SHA-1: c10479581273880375e905d28452a2e45e1db428 SHA-256: 055dd79fa669f920ba634b3f73c62da5194d0dc244205b6c7c0a19caf8ea6fb9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body text and heuristics indicate a lure for downloading PDF files, likely a phishing or scam attempt. The presence of a malicious redirector suggests the intent is to lead users to harmful content or further compromise.

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=capit%25C3%25A3es+de+areia+livro+pdf+download In PDF document text
    • http://files.alcuin.org/uploads/1/3/2/6/132681812/493fb0e6e0100ea.pdfIn PDF document text
    • http://xemumi.predictionservice.com/uploads/1/3/0/7/130739935/tofapeliles_totimafuzapokax_vapexonebunogoz.pdfIn PDF document text
    • http://peleza.allisontaylorphotography.com/uploads/1/3/1/0/131069839/tavam.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/1/0437/1320/0282/files/naxiparowowaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7862/2111/files/electrical_engineering_exam_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/wordly_wise_3000_book_7_lesson_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3282/1412/files/breathing_techniques_for_meditation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5119/5299/files/47469574159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/gabapokenugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0898/9096/files/84388137383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/suxafakabovope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0188/7396/files/kenikosamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4927/7845/files/debaderukonanuralovej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0928/5024/files/otd_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2970/6390/files/juzoguzulawasuzokuxaj.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 2

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_off00006475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6475 5408 bytes
SHA-256: ba30fa56aeb1dab9f90c3d4918ad1200d9d1a449278e9afc0e8f7018f92517c8
font_01_sfnt_off00007667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7667 13008 bytes
SHA-256: ce1903acbc1450bf3b78296f63de5f38dc0a86ecc04291de4d6370c4ae2c0519

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