MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=icao+annex_14_aerodromes_volume_1_pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of a large number of external PDF links, while many are benign Shopify links, suggests a link farm or SEO manipulation tactic to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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.ru/pify?keyword=icao+annex+14+aerodromes+volume+1+pdf In PDF document text
- http://files.citygroves.com/uploads/1/3/0/7/130739601/tapet.pdfIn PDF document text
- http://files.mariedyerstudios.com/uploads/1/3/2/3/132303082/3000020.pdfIn PDF document text
- http://files.cascadiacenterformassage.com/uploads/1/3/0/8/130815303/jorudilade.pdfIn PDF document text
- http://files.bamabreddoodles.net/uploads/1/3/0/8/130874691/pagojovigarurem.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/1/0435/9228/6363/files/31666993957.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0409/9735/files/financial_reporting_ca_final_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/1622/8761/files/absorption_costing_vs_activity_based_costing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6778/4864/files/finekefoluwutilugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1841/1417/files/mulipofeki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4346/3074/files/99826823857.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3205/1873/files/75731325913.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4078/4035/files/robilidivimufezil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6060/6616/files/44745132685.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8451/2406/files/16196461856.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0436/1895/files/73251387336.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001c607.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C607 | 5504 bytes |
SHA-256: 49e339d69f21d2a3844297f68a9022aa966637a65af5c6bf6da666df82c09884 |
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font_01_sfnt_off0001d8c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D8C5 | 10444 bytes |
SHA-256: a084473a1b128f9c54ebcd81f6e0107ff52dbfa8488036649e5c9b8b9f1ef572 |
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font_02_sfnt_off0001fc6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FC6F | 16112 bytes |
SHA-256: 23e5e0a6ad5360bf10628433507e5aab34c42d7d900ccb2a5214949f2168b422 |
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