MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains a link farm and a specific malicious redirector URL, disguised as a free download for AutoCAD software. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link at https://ttraff.ru/pify?keyword=introduction+to+autocad+plant+3d+2020+pdf+free+download leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is designed to host numerous external links, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly suggests a phishing or malware distribution attempt.
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=introduction+to+autocad+plant+3d+2020+pdf+free+download In PDF document text
- http://files.marysalter.com/uploads/1/3/1/0/131070786/6165990.pdfIn PDF document text
- http://bolekagi.visitdvcc.org/uploads/1/3/1/0/131069934/golijowowade.pdfIn PDF document text
- http://files.dreadfullocksct.com/uploads/1/3/2/8/132816195/fa0cf5aa625.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/1/0441/3744/7576/files/xujizubazo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5525/9546/files/76273905625.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3316/5986/files/jemimajonupunotaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/93037608331.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2635/8173/files/jutobujojesosumaziwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1987/5998/files/kudifuforunuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7162/6659/files/38428483387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9701/2890/files/93425572079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7461/6472/files/24795796660.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6607/2994/files/82098873740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8476/6620/files/74325153164.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_off00006ac0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AC0 | 5436 bytes |
SHA-256: 830bcc042ad55e2512074e563fb6e3ed533d7e7be300ccb202295e1cdcec4789 |
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font_01_sfnt_off00007d62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D62 | 10768 bytes |
SHA-256: 519539d67d37d2bcade603aec0f95483c8740a972433fac513a4a3593848f61d |
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