Malicious PDF — malware analysis report

Static analysis result for SHA-256 37f783e6156c2a8f…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 08:24:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5966f5a8e014560c3610aefce6068cdc SHA-1: 7c7282e7eaab9d185deb1557270996a60f46da8f SHA-256: 37f783e6156c2a8fa24ca9d1961c317390de558d061ccbd4fe328025e55b85d7
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The primary heuristic indicates that the PDF links to malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=catalogo+esselunga+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware delivery, under the guise of a catalog. No scripts were extracted from this sample.

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=catalogo+esselunga+pdf In PDF document text
    • http://files.glamgoddess.shop/uploads/1/3/1/4/131483491/fazubuxijozuzexep.pdfIn PDF document text
    • http://files.alannastephens.com/uploads/1/3/0/7/130740130/5793759.pdfIn PDF document text
    • http://files.carolcgould.com/uploads/1/3/0/8/130873914/pefovumuduw.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/1/0431/4673/9866/files/62842046056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3566/4284/files/quality_assurance_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/3400738387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/pejoniduxalesazuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1324/2014/files/eduardo_galeano_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/wisaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4245/files/sejotexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0902/2886/files/50073096128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/rozezojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6457/2569/files/nodame_cantabile_drama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/82767885512.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_off000069fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FC 5020 bytes
SHA-256: cfabf6782c7cf2e8c659e7cc64394251a23960076e7339690d95b7ce892946f5
font_01_sfnt_off00007b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B27 11520 bytes
SHA-256: 1ab561db0006cd12c98ace29fd8523a4337bdd8029321fb4d4099de4ecdd8fbd

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