MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector infrastructure known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body and embedded links suggest a lure for free downloads, which is a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection.
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.cc/pify?keyword=simple+english+sentences+with+tamil+meaning+pdf In PDF document text
- http://dafikad.bhsautomotive.com/uploads/1/3/0/7/130739267/760ee81da.pdfIn PDF document text
- http://files.davidfjasper.com/uploads/1/3/1/6/131607163/5011583.pdfIn PDF document text
- http://files.protoshape.co.uk/uploads/1/3/1/4/131453645/1556887.pdfIn PDF document text
- http://files.craigheadcountyveterans.org/uploads/1/3/1/4/131406715/lilafifazalut.pdfIn PDF document text
- http://files.hannahviera.com/uploads/1/3/2/7/132710697/duriserubiguresaw.pdfIn PDF document text
- http://fedorahosted.org/lohitIn 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/1/0428/4694/5436/files/33153345241.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5202/3458/files/57164135250.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0160/9366/files/69747244916.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7461/6472/files/antimicoticos_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1574/9281/files/21496008135.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8930/5506/files/analytical_dynamics_baruh.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0428/1511/files/zizekagorufimuxijiviza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0126/6851/files/liwiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/1295/1961/files/carabao_grass.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2825/0781/files/76757099434.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9467/0498/files/91946959755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6055/9013/files/lixikasuradururebew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6380/3046/files/73429915562.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0000b0d5.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xB0D5 | 20040 bytes |
SHA-256: fd17805b79abc12d868fc7c73489114d3a9ff6bdf84f23365bf86b87c9bfd38b |
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font_00_sfnt_off00009d96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D96 | 5668 bytes |
SHA-256: 0e71f27f6874f4cef85492e16eac60297f3d575ca45c99c4dcb2c69d764f0ff5 |
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font_02_sfnt_off0000dbde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBDE | 13216 bytes |
SHA-256: 867546dbeff4fa651468d1d54f5b571fe7b55a64719bbf287cc1aa1398cbe1d9 |
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