MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, designed to lead users to potentially harmful content. The embedded URL 'https://ttraff.ru/pify?keyword=biblia+de+estudio+arcoiris+en+pdf' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting a lure for users seeking specific PDF content. The presence of numerous Shopify links, many pointing to benign content, alongside the malicious redirector, indicates a tactic to mask malicious activity within a larger scheme.
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=biblia+de+estudio+arcoiris+en+pdf In PDF document text
- http://gajiko.dokartistspace.org/uploads/1/3/0/7/130776257/sepolabepanuvu.pdfIn PDF document text
- http://files.florinafit.com/uploads/1/3/0/9/130969430/7142a581195.pdfIn PDF document text
- http://files.whatsoninhoniton.com/uploads/1/3/1/4/131406412/236046a.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/1/0428/9835/8432/files/51982080438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4452/7525/files/5679248043.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4670/6088/files/etiology_of_pneumonia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7113/6154/files/lomixomalogesazika.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7298/7046/files/70088798485.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6193/6282/files/7073032672.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6750/6841/files/98985839044.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0457/5387/files/linutezivewisonuga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1634/8057/files/fizemogizadilijite.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8307/1650/files/disney_piano_sheet_music_advanced.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5286/6455/files/1982_yamaha_maxim_750.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34888362351.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_off00004c4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C4B | 5336 bytes |
SHA-256: 3bf94ffa19af44ad4936f3a78f00a3069a81b70109f9544b3123a9ba07ca4d98 |
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font_01_sfnt_off00005e71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E71 | 14264 bytes |
SHA-256: 9f8b497b4bd0b11dd44e88266e67336eb27f6d373d3092ac48e787e32d96f569 |
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