Malicious PDF — malware analysis report

Static analysis result for SHA-256 235cf585cb162c1f…

MALICIOUS

PDF

41.7 KB Created: 2020-08-07 21:15:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acb55cec99b5ebc27d845ed1b3519fde SHA-1: 95cfbb99820363aeb3919060ab3248de6b0eea3f SHA-256: 235cf585cb162c1f8d1889b3f2a2b8853f6cbfd32c3fae160bc18c5f2f695dec
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=una+profesion+peligrosa+luciano+canfora+pdf', is identified as a known malicious redirector. The document body contains garbled text and embedded URLs, suggesting it is designed to lure users into clicking malicious links rather than providing legitimate content. No scripts were extracted from this sample.

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=una+profesion+peligrosa+luciano+canfora+pdf In PDF document text
    • http://files.cybersecurityinc.net/uploads/1/3/2/6/132681938/natuwafegaga.pdfIn PDF document text
    • http://files.skincarebyjacquie.com/uploads/1/3/0/9/130969545/e55037.pdfIn PDF document text
    • http://files.honeybeecustoms.com/uploads/1/3/1/8/131856125/vetusimejazigixobe.pdfIn PDF document text
    • http://files.kerrilynmerinos.com/uploads/1/3/1/4/131453944/ferepinunirefu-baladegonumegam-sepez.pdfIn PDF document text
    • http://files.teamkalos.com/uploads/1/3/1/4/131409508/lunojiwukojo.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/1/0432/8102/3132/files/koxigazupijorawumupuder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6964/files/game_design_doc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9011/5736/files/gerawenabufofuxitogimel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4032/files/89367644586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/bajozosefarami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6404/7269/files/design_of_seismic_isolated_structures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8019/7031/files/diagnostico_comunitario_segun_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/sifijurob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/pijeresipiwevevoreduju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/basepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7633/8335/files/xuzetuwerorolukeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/arestin_prescription_form.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_off0000649d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649D 5312 bytes
SHA-256: b71824d8ab3f1ca30237f58dd66e12d20ec0905ff8c5b1abbd4b32238c68ce6b
font_01_sfnt_off000076c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C0 10724 bytes
SHA-256: d9211c129b645af89c64d7ba12c7b2fead4e7dfc13e427e3bf8b03336a172728

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