MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links designed to appear as a tutorial for "Autocad 2013 tutorial pdf". The primary link, however, redirects to a malicious URL, ttraff.ru, which is known to host redirector infrastructure. The document also functions as a link farm, pointing to many other PDF files, likely for SEO manipulation or to distribute further malicious content. The presence of a visual download button further supports the lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=autocad+2013+tutorial+pdf In PDF document text
- http://files.porthcawlmuseum.com/uploads/1/3/1/4/131437683/4183767.pdfIn PDF document text
- http://files.augopet.com/uploads/1/3/1/4/131438869/9bae0f.pdfIn PDF document text
- http://files.flyingcoloursmusic.co.nz/uploads/1/3/1/4/131410939/jiwojalava.pdfIn PDF document text
- http://files.atascocitacg.org/uploads/1/3/0/8/130814208/lavelibe.pdfIn PDF document text
- http://files.dublinwritersretreat.com/uploads/1/3/0/7/130776630/bowufiz.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/1/0433/4845/9673/files/bamiwunodefaxoluximagu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8845/3533/files/62627366589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5800/4117/files/tagomojoteg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1814/1347/files/40715070878.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9593/2584/files/83537836258.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9664/6556/files/36871708543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2698/7680/files/18884539449.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/pekopudonefuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6971/9196/files/83832084151.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9755/5108/files/71670963278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugasodaliza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5663/5804/files/xedomoragaxalotit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000047f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47F1 | 5448 bytes |
SHA-256: 3957d723d8bf017c3808e15f369744f3ed9a924c6ff22d176bf9c2c72e48b244 |
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font_01_sfnt_off00005a97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A97 | 9516 bytes |
SHA-256: bc543f33c3f883a46affe07c92361b7ec086f522b0bc124faf5c21b35a9e64c0 |
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