MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, designed to appear as legitimate search results. The primary malicious link, https://ttraff.com/pify?keyword=ak+datta+anatomy+thorax+and+abdomen+pdf, is a redirector to potentially malicious content. The document body itself is heavily obfuscated but contains references to the malicious URL and other PDF files, suggesting a link farm or SEO poisoning attack. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.com/pify?keyword=ak+datta+anatomy+thorax+and+abdomen+pdf In PDF document text
- http://files.alpacacentral.ca/uploads/1/3/0/7/130740563/sesegotaxogudiva.pdfIn PDF document text
- http://files.gnshs-pto.org/uploads/1/3/1/8/131856392/zovoderarala.pdfIn PDF document text
- http://files.jennyscreativeedge.com/uploads/1/3/0/9/130969061/acedd.pdfIn PDF document text
- http://monut.seminolecemeteryassociation.com/uploads/1/3/0/7/130775350/ab7fd143d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0438/2585/6669/files/niwiwedapetujune.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8465/1423/files/canon_mx492_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/7183/6055/files/artritis_reumatoide_juvenil_fisioterapia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9586/8067/files/68680607085.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1633/1172/files/27582405220.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9573/6988/files/repurezoferikudufofox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/4820/0342/files/assistive_technology_for_autism.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/8535/3380/files/princeton_review_cracking_the_new_sat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/alimak_raise_climber.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8209/5517/files/jurisprudence_exam_texas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4556/0219/files/gibavuzunazidivezotejopup.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004382.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4382 | 5176 bytes |
SHA-256: c6e39f0f1879cc4fd4af34a475e1400c8da9d56468b2f4d581e89216b04e9a5e |
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font_01_sfnt_off000054f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54F3 | 9316 bytes |
SHA-256: d7398f69a64544a37d87d89e1ba0aff97d83623d646bb127637aa4e6da0f2a4c |
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font_02_sfnt_off000074f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74F7 | 16164 bytes |
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
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font_03_sfnt_off00008a0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A0E | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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