Malicious PDF — malware analysis report

Static analysis result for SHA-256 5863b7a9e8367b09…

MALICIOUS

PDF

44.4 KB Created: 2020-08-07 04:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f4540d675d3ac23560786b98d236c83 SHA-1: 597840ab4f610e3e386ad40283710294977b140d SHA-256: 5863b7a9e8367b09096768c7e5bde3a194cb798ad3c3eb6aa9cc2b778c42143f
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Environmental impacts of genetically modified crops pdf' and the URL used in the redirector, suggesting a lure to disguise malicious intent. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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=environmental+impacts+of+genetically+modified+crops+pdf In PDF document text
    • http://files.pulpandpinediy.com/uploads/1/3/1/6/131636946/4565839.pdfIn PDF document text
    • http://files.peakhealthcaremaryland.com/uploads/1/3/1/4/131406816/rizapisopasiraluzoga.pdfIn PDF document text
    • http://files.maverickarthealing.com/uploads/1/3/2/6/132680986/wegufodosanipexur.pdfIn PDF document text
    • http://files.intmsc.com/uploads/1/3/0/7/130776542/kutoronuk.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/1/0437/7133/0717/files/18146845393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2997/8526/files/takeboxoxalusoxafefudoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/bonfiglioli_as_series_gearbox_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/16541065990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/96441106117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/visual_basic_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1303/6439/files/lojonagomowigisesewisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/joxatokufavisuwiwometufaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4933/6483/files/batman_arkham_origins_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/nibof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6708/8791/files/estadistica_para_administracion_y_economia_anderson_11_edicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1606/1091/files/77699533262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5960/1830/files/gesuranomakatuv.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 8

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_off00006e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 5596 bytes
SHA-256: 7e8046cc258b0c71b9cf17f194625ddbf7dc5ff642e62a3d66e554b4aa77469b
font_01_sfnt_off00008113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8113 10324 bytes
SHA-256: 93d42ebc3795a8ba8ddf52bf734d35651cdd7b1b102a00fc62df2e2223e8f40e

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