Malicious PDF — malware analysis report

Static analysis result for SHA-256 f56a603a91a6780c…

MALICIOUS

PDF

40.6 KB Created: 2020-08-21 16:53:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97d07de7b661c884c6dbc4653265f6dd SHA-1: ae478662c6ec0aaf0b406dbc614d6b8e033d3c86 SHA-256: f56a603a91a6780c019d989cb150c5bb408c2bdf6aa9688a931fe9f0b5819898
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=cautious+language+pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=cautious+language+pdf In PDF document text
    • http://duxaveto.ucitylourdes.org/uploads/1/3/1/3/131379552/zojefetebafa.pdfIn PDF document text
    • http://files.ryankbeauty.com/uploads/1/3/0/8/130873914/7713204.pdfIn PDF document text
    • http://files.danvillerespiratorycenter.com/uploads/1/3/0/7/130739284/rubedalusolisure.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/1/0428/9835/8432/files/livoxigugefeguvon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7555/7793/files/unity_invoke_with_parameters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/almost_home_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/nela_ticket_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6645/0074/files/entrapped_crossword_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/vomisanag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6237/6088/files/65375439516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3042/9346/files/baby_shower_invitations_templates_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0561/files/housewarming_invitations_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/19845756523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9420/4825/files/janetonejef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9907/8299/files/lolixumugarerudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8543/8883/files/42151826733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/experience_certificate_for_civil_engineer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9446/files/rekazolesejamovolujifi.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 5

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_off0000623f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623F 5020 bytes
SHA-256: a828fa0f4f0a6b59eaffd38d043460bf8d093102eb5ca7d76b7b516cf58d6491
font_01_sfnt_off00007362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7362 10084 bytes
SHA-256: 11841ac6515da6fc4b47772112a922896c4c8426fa8d65e9e1d18f2fd07ea321

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