Malicious PDF — malware analysis report

Static analysis result for SHA-256 35cd7de297a0db74…

MALICIOUS

PDF

45.9 KB Created: 2020-08-18 20:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 98505fb5c8ae3cdee9fd14e8bb823dac SHA-1: 5195e617778add454d5eadb214e2d0eb2ceb9541 SHA-256: 35cd7de297a0db741b055a176a6fa1d74a6c80014eeb2543d27048b1694d6964
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. One prominent URL, 'https://ttraff.ru/pify?keyword=caracteristicas+de+la+familia+anacardiaceae+pdf', is directly linked to malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'caracteristicas de la familia anacardiaceae pdf', suggesting a social engineering attempt to drive traffic to malicious sites.

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=caracteristicas+de+la+familia+anacardiaceae+pdf In PDF document text
    • http://wamogum.innovativestoneart.com/uploads/1/3/1/3/131380213/5403554ed91.pdfIn PDF document text
    • http://lesifaw.tochnorthernregion.org/uploads/1/3/1/3/131398125/patujuxe-kugud-pusenesusagi.pdfIn PDF document text
    • http://files.emmanoelleclark.com/uploads/1/3/0/9/130969545/nepevusefotupawevex.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/1/0437/4714/7925/files/wudelefapus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9426/8320/files/ankle_rehab_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6224/7067/files/11144419469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/wekatodar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/planos_arquitectonicos_de_casas_de_un_piso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/dokulituvorikisosepifag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/23906225555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/wameridewukunonutagikitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/pateriwifesivanadoxavobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/12997236869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5136/9127/files/korinekibawuzijofonokawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/rules_for_discord_server_copy_and_paste.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9964/3297/files/dulatob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8964/1116/files/jadukaber.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_off000072d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D0 5208 bytes
SHA-256: 1580b96856fddd6b3a59702037912df911c279c9704c8e43f3985ba81bd58912
font_01_sfnt_off00008467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8467 10872 bytes
SHA-256: 9a8a15afe6b948a7f29a8869b17693f921a5161ff50fdbf17059406a6a433696

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