MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though partially corrupted, contains text suggesting a lure for 'basic english grammar book for beginners pdf' and includes a visual download button heuristic. The primary malicious URL is https://ttraff.cc/pify?keyword=basic+english+grammar+book+for+beginners+pdf, which is likely used to redirect the user to further malicious content.
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.cc/pify?keyword=basic+english+grammar+book+for+beginners+pdf In PDF document text
- http://files.middlelanefarm.com/uploads/1/3/2/7/132740458/zurogomape.pdfIn PDF document text
- http://files.rachelbeckles.com/uploads/1/3/1/0/131070313/6113ed12.pdfIn PDF document text
- http://zufaso.samaacollection.com/uploads/1/3/0/9/130969366/xilasu_fogarogud_gikujunelu_farazameve.pdfIn PDF document text
- http://zixaged.mayberrysatterfield.com/uploads/1/3/1/3/131379530/3288108.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/1/0428/5127/0815/files/rejakolopejet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8733/1481/files/advantages_and_disadvantages_of_participative_leadership_style.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1742/6328/files/preposition_of_time_and_place_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7079/8489/files/52871629891.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6789/0069/files/81418701790.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9631/7845/files/project_report_on_electricity_billing_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8905/8206/files/jufozadedezijigifam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/1591/6967/files/android_x86_oreo_iso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3262/4797/files/38160764539.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9491/5738/files/95902430245.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3504/0664/files/30095153477.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_off00006996.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6996 | 5820 bytes |
SHA-256: 3b80bcd7e186bbf30ea644a4bc8fd8b7dca84902afc38bacb74c7a053fc73bbf |
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font_01_sfnt_off00007d20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D20 | 10524 bytes |
SHA-256: d0d213c9f0b4cfd9fd9a0eb88a1cd396cdfbdd4eff033e8b487a0acb0ae49945 |
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