MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be related to 'statistics interview questions and answers pdf', suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent.
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/wb?keyword=statistics%20interview%20questions%20and%20answers%20pdf In PDF document text
- http://files.wordoflifemn.org/uploads/1/3/1/3/131398250/vaxizesole.pdfIn PDF document text
- http://files.eframesuk.com/uploads/1/3/2/6/132680867/dd3054ef.pdfIn PDF document text
- http://files.mauibeachvillarentals.com/uploads/1/3/0/9/130969545/dejevenatej.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xokiwija.files.wordpress.com/2020/06/nobakesujokozatumekuwurug.pdfIn PDF document text
- https://basopejimip.files.wordpress.com/2020/06/88586685813.pdfIn PDF document text
- https://mifowoxar.files.wordpress.com/2020/07/jowajusog.pdfIn PDF document text
- https://wubigixetoso.files.wordpress.com/2020/06/33679083044.pdfIn PDF document text
- https://kuroluf.files.wordpress.com/2020/07/72480527869.pdfIn PDF document text
- https://janavitim807994190.files.wordpress.com/2020/07/18316652554.pdfIn PDF document text
- https://badupegenum.files.wordpress.com/2020/06/budupitazevisotokil.pdfIn PDF document text
- https://zuvutipabog.files.wordpress.com/2020/07/23096587569.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8108/0738/files/sukodabafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1708/3803/files/debodenawiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7409/3217/files/lesunisaxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4519/9784/files/fajoxikovexaxewa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3153/5524/files/lipotufubarotopuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8683/2035/files/2996283436.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3183/8368/files/38069928627.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5279/2982/files/mugiz.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_off0000764e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x764E | 5380 bytes |
SHA-256: d7b6075d80a494bc23eb70d38d4ab82d221a1f35c8cecee570a73553b5018729 |
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font_01_sfnt_off000088a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88A5 | 10512 bytes |
SHA-256: 29844c0110e17fb1cd036b0aed9f7f381ec99bc7ff5511a211dd8dada359cf49 |
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