Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd0c3115218468e…

MALICIOUS

PDF

43.0 KB Created: 2020-08-12 20:15:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92835adbe613eab9ef6d0246d537c508 SHA-1: 751b19f54765aae2d64d69016c1bcf94087afdea SHA-256: dcd0c3115218468e636697dfc0748c01006693a7df4a1da3220180151a078975
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to a 'manual paper cutting machine for sale' and the URL for the redirector, suggesting a lure to a malicious site. The presence of a link farm heuristic further indicates a malicious intent to distribute links, likely for phishing or malware delivery.

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/wb?keyword=manual%20paper%20cutting%20machine%20for%20sale In PDF document text
    • http://tuwoxav.seamusactor.com/uploads/1/3/1/4/131482975/pudivadujifa-mudikavezu.pdfIn PDF document text
    • http://files.medinastreetvault.net/uploads/1/3/2/7/132740987/bemotatojesijomowo.pdfIn PDF document text
    • http://files.sanfordwelcomecenter.com/uploads/1/3/1/8/131856285/zekax_gakud_xuvosox_kunudewokinoz.pdfIn PDF document text
    • http://files.blackjacksspeedshop.com/uploads/1/3/1/3/131398333/biverabutazunojug.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/1/0429/1212/0998/files/37254051006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/jubijoloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4446/8896/files/beautiful_boy_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/kubam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6321/2192/files/tratamiento_para_cancer_de_esofago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2325/6999/files/kepapuwasexudijudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4095/4773/files/fantage_online_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6161/4494/files/water_softener_design_calculation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4757/4949/files/merukej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2805/4169/files/63533051091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/kawogefedabej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5385/9494/files/salt_lake_city_dmv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7602/6522/files/91337129964.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 2

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_off00006a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0D 5436 bytes
SHA-256: 0abe695096b1504741c6c95a2060a660c8ede2c3c396191b21d5adb7855abedf
font_01_sfnt_off00007c62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C62 10152 bytes
SHA-256: 2234a3c77c77860f1fe13a8b18ee050f9a6a48f7d472e740d6b2205e41c54570

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