MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to 'English grammar tenses in telugu pdf' and mentions 'wkhtmltopdf', suggesting a lure document. The presence of a download button heuristic further supports the malicious intent of directing users to external 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.ru/pify?keyword=english+grammar+tenses+in+telugu+pdf In PDF document text
- http://files.danielleaugustine.com/uploads/1/3/0/7/130739415/b09370cde2a4a.pdfIn PDF document text
- http://files.halifaxinternalmedicine.com/uploads/1/3/2/7/132740586/bb72eae86c0a05.pdfIn PDF document text
- http://files.donkeycar.com/uploads/1/3/2/7/132741144/9c3630.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3738/5123/files/dexelotakimodawiwarojinud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6550/6966/files/83925000702.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4697/7179/files/19475954405.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5180/3033/files/4193085803.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6042/8962/files/6520054811.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1446/3394/files/80922349295.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7405/9430/files/76870110231.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2937/0779/files/funowukuniremokane.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000078b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78B8 | 5184 bytes |
SHA-256: dd0e64fce07eb4f861db2cd926ea30a176cc39b23980c945d9ff9d0181fd206e |
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font_01_sfnt_off00008a20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A20 | 26180 bytes |
SHA-256: 1b6b855f4d2392408a267c0e84f82a2410a98b263566214d59ac7f4f6fec7cc6 |
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font_02_sfnt_off0000c30d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC30D | 14392 bytes |
SHA-256: b2252738052d5dd280ae4137c00d5b7641f67cdb116fdd667f62f2c17e0ab39d |
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font_03_sfnt_off0000eff0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFF0 | 16312 bytes |
SHA-256: fb068303513e190bf9749f839f86096b33321690f561e07e727c9816c30dc8af |
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