MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links, suggesting a link farm or phishing campaign. The presence of a 'download button' lure further supports this. The ML classifier strongly flagged this PDF as malicious. The primary redirector URL is https://ttraff.cc/pify?keyword=custom+rom+for+redmi+note+4x, which is likely used to deliver a second-stage payload.
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=custom+rom+for+redmi+note+4x In PDF document text
- http://files.blueoval.org/uploads/1/3/1/3/131378838/temit.pdfIn PDF document text
- http://fotipiku.hansroegelearchitect.com/uploads/1/3/2/8/132814930/df6e40b1b8.pdfIn PDF document text
- http://denexilug.voicescienceworks.org/uploads/1/3/0/9/130969723/taderu-jotonij-risusapes-dezode.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/1/0429/6281/3084/files/xuripitakedufunizez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4364/2773/files/16010719800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8850/3203/files/93887119246.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9932/4580/files/82591942041.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5957/5958/files/moodle_luis_de_camoes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3064/1826/files/fozemirakevovutowunup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1242/9723/files/gufopexemiwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6826/8456/files/40164873253.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3149/4810/files/fetepiximeluvebujegape.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4157/8399/files/life_science_lab_manual_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3335/4659/files/jipapugonabinizan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8986/0510/files/higher_category_theory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1523/3948/files/17337520767.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 |
|---|---|---|---|
font_00_sfnt_off00008153.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8153 | 3196 bytes |
SHA-256: 9676c66e855e6017d6242c737bde8cc13420adc99d36ae8237d18b8e01dbe709 |
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font_01_sfnt_off00008cb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CB7 | 4872 bytes |
SHA-256: 6029ba0ecaef51b679a22f5b281cccd3d8bbf9d1163888cbd0b7beefa3a9f373 |
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font_02_sfnt_off00009d40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D40 | 10128 bytes |
SHA-256: 25facad1ffaee81918a7f8871ce7ff904c902d742ab3f95c85066484aa739b1a |
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