MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body and heuristics suggest a lure for downloading other files, likely malicious, under the guise of an 'answer key' or 'free download'. The ML classifier strongly supports the malicious verdict.
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.com/pify?keyword=drdo+answer+key+pdf In PDF document text
- http://nupatogi.farmandranchdogs.com/uploads/1/3/0/7/130738870/jexexilisozipo-maletefegowedi-mifudujizirakob.pdfIn PDF document text
- http://files.flohtoronto.com/uploads/1/3/0/8/130813762/b5cceaf9739feb.pdfIn PDF document text
- http://files.fossilschools.com/uploads/1/3/1/8/131871494/joxup.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/1/0427/4746/1788/files/towogenugozezuraj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1055/4016/files/biwalilevarutigarejovet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0663/1846/files/dezudexaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7335/3366/files/5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8956/7650/files/fufipipatulipotewoboto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3123/0614/files/ibanez_serial_number.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1136/5288/files/pravana_color_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5429/3402/files/posonisopunusamuzotiwevop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3699/0885/files/spanish_dictionary_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2584/1819/files/lodatuporog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5630/0186/files/sijoguwunuxipatevopivod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9599/0175/files/2012_ford_focus_owners_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9105/8078/files/gamusujevebozazad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9755/4084/files/85545977172.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8301/3023/files/mezzo_forte_definition.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_off00006ad7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AD7 | 5260 bytes |
SHA-256: 4781cdbc796f7f502820696a4e60a5874a26d847a43b8e015693f3d59ca5aa37 |
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font_01_sfnt_off00007cee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CEE | 11776 bytes |
SHA-256: 9a9d79719b05c055870536d2768e56df942bb9baed5f938b5cf643dd93306c1b |
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