MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a prominent link presented as a download for 'Upsc mains answer sheet pdf download'. This link, identified as a malicious redirector, points to 'ttraff.cc'. The document also contains a large number of links to Shopify-hosted PDFs, likely for SEO manipulation to increase visibility. The presence of a call-to-action button further supports the malicious intent of luring users to click the link.
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=upsc+mains+answer+sheet+pdf+download In PDF document text
- http://xuvemijis.divinesoulcenter.com/uploads/1/3/1/4/131453062/9741733.pdfIn PDF document text
- http://files.anakarylle.com/uploads/1/3/0/8/130874073/ketakizibagesipepoz.pdfIn PDF document text
- http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.pdfIn PDF document text
- http://files.donahuesportsmens.com/uploads/1/3/0/8/130814581/9588380.pdfIn PDF document text
- http://files.sarahkramerharrison.net/uploads/1/3/1/4/131453132/6282998.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/1/0429/7680/5018/files/taxonomie_van_bloom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5528/3366/files/background-_size_css.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7118/4794/files/zoworebozap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3864/5144/files/rivubejavedonuletakiti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4104/5145/files/animals_for_kids_vocabulary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2215/3890/files/vixogazegado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6635/2025/files/12136194426.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9700/5981/files/82744748460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xoperesotojazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5306/9974/files/search_inside_yourself.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/2428/0726/files/daydream_believer_piano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4670/6088/files/48640045596.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_off00005635.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5635 | 5476 bytes |
SHA-256: 7467113908fea57b320b04d3569cd6c77bfa0f8bc9a1b4517a565aefc66062c3 |
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font_01_sfnt_off000068bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68BC | 10220 bytes |
SHA-256: 397d605f2153fb832cad7dd446f753d18e6e0a545c2978d25eb968bbe4b5ca73 |
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