Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce7631eb3d55c55…

MALICIOUS

PDF

46.3 KB Created: 2020-08-11 09:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9c487681004753f9e622f3173788034 SHA-1: e6517856b135452a22df99e7b1e2f9ab29d72a30 SHA-256: 5ce7631eb3d55c554775447a62d7dea24e06f36c354e5b0cdc71455b8cc982cf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service that ultimately leads to malicious infrastructure. The document body and heuristics indicate a lure for free downloads, likely a phishing or malware distribution attempt. No scripts were extracted, but the embedded URLs and the PDF redirector heuristic strongly suggest a malicious intent to redirect users to harmful 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.ru/pify?keyword=beyond+good+and+evil+by+nietzsche+pdf In PDF document text
    • http://vejulefi.foreverenchantedparties.com/uploads/1/3/1/3/131398101/4829292.pdfIn PDF document text
    • http://files.jclandscapingandmasonry.com/uploads/1/3/2/6/132683137/82d8bf5.pdfIn PDF document text
    • http://ziketoput.mountaingappta.com/uploads/1/3/0/7/130776407/gopifobiwafelegefif.pdfIn PDF document text
    • http://files.oakroaster.com/uploads/1/3/1/6/131607010/1464635.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/1/0428/3128/2335/files/california_pizza_kitchen_nutrition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/comic_storyboard_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5658/7174/files/j._holiday_bed_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/employment_agreement_letter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/99242621389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8348/9687/files/66158535621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0976/files/97419072946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/1997_plymoth_voyager.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/how_to_make_fabric_in_little_alchemy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/51119438147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/polonafebomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7464/files/nugukobi.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 7

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_off000075c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C6 5720 bytes
SHA-256: c39c8e65f90c3ab34d8277464657c2dbc48ffbc541840cf0f823f5899a5ca0ab
font_01_sfnt_off00008959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8959 10144 bytes
SHA-256: 2676ce33ca9d03c42162e2fa1d7d608429d359121bf383bcb54cd90e0052e5fb

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