Malicious PDF — malware analysis report

Static analysis result for SHA-256 32374e45b39da671…

MALICIOUS

PDF

74.8 KB Created: 2020-08-21 20:29:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 673e93af64d3002f72e1e540b68e01fd SHA-1: be6564462e2ef102c436539490ea514f1d8c054b SHA-256: 32374e45b39da6714572e7b726fb190af1389bec1b51c1dd263b5fb71dc4a413
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=dibujarte+pdf+1'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0431/1970/6279/files/43656487624.pdf'. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the redirection attempt.

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.ru/pify?keyword=dibujarte+pdf+1 In PDF document text
    • http://files.larrymcd.com/uploads/1/3/0/7/130775735/moxobilozesoponu.pdfIn PDF document text
    • http://files.yizhixu.com/uploads/1/3/1/3/131398102/fisenizadak_redafex_mitutalojejid.pdfIn PDF document text
    • http://sarexabut.learnesolglasgow.com/uploads/1/3/2/6/132695535/5172975.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/1/0431/1970/6279/files/43656487624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/sexonof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5703/1842/files/graphic_design_portfolio_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0190/5315/files/87212762959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2791/4152/files/types_of_bandages_and_dressings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5452/1758/files/fuxafisibepivufapanupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/rodiwejuwufawuvabalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1966/8377/files/69528799454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/bofifop.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off0000c722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC722 5092 bytes
SHA-256: c58491e69f9667a0c3d3eb28d75767b63a399afdc2a0eb237d79af806ceb5395
font_01_sfnt_off0000d88b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD88B 15400 bytes
SHA-256: 7aab424c0eb1a70d950eccbb5b1948974fe8fb1c611f98bfead2e2ce7c9cb657
font_02_sfnt_off00010930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10930 16132 bytes
SHA-256: d9b012042df5fe8dc074c42eae0f7627b15178249d85eb70dc7afc452d134ec7

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