MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as an application form for an OBC caste certificate. The document body and heuristics indicate a link farm strategy, with numerous embedded URLs pointing to various PDF files, likely to manipulate search engine results or distribute further malicious content. The primary malicious URL is https://ttraff.ru/pify?keyword=obc+caste+certificate+application+form+pdf, which is flagged as a known malicious redirector.
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.ru/pify?keyword=obc+caste+certificate+application+form+pdf In PDF document text
- http://files.lowellstudentassociation.org/uploads/1/3/2/7/132740892/mesejagab_rizirejukezesa_daperem_riwek.pdfIn PDF document text
- http://tuwenizug.thehoneybeefactory.net/uploads/1/3/0/8/130813821/nexopineputo_gabinitisemor.pdfIn PDF document text
- http://files.kinnorclassics.com/uploads/1/3/1/0/131071063/4343608.pdfIn PDF document text
- http://dosozebu.affordabletherapytoronto.com/uploads/1/3/2/6/132696414/fekujavene-lonozupigokotib-bimawomunozax.pdfIn PDF document text
- http://www.anagrasarkalyanIn 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/1/0433/5029/4678/files/adobe_edge_animate_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8619/2546/files/buwumubamopapale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5828/9045/files/bessel_s_inequality.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1415/9521/files/79795390470.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9899/5878/files/cdi_pocket_guide_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3767/7989/files/49430506817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6379/5094/files/bengali_calendar_2020_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3428/0087/files/84601065859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8014/6334/files/18796535684.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7519/8373/files/division_of_polynomials_examples_with_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8438/1337/files/pezinod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2950/2874/files/zuvuwajuvegidatoluposo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6633/4111/files/39175720253.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7789/2251/files/29942525353.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_off00006389.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6389 | 5468 bytes |
SHA-256: ff0973e50fb3f20b46ea6130cac16a663f83c80d2570242962d8789f76c913a5 |
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font_01_sfnt_off000075f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F3 | 9748 bytes |
SHA-256: 18c661f0ff60eacc8c89b8c6ef80f98ae59aeade04c03dab9f73d4ab2badbd24 |
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