MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link disguised as a free calendar, which is a common lure for phishing or malware distribution. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that the primary URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which are likely part of a link farm designed to improve search engine ranking for malicious content. No scripts were extracted from this sample.
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.cc/pify?keyword=calendario+annuale+2020+pdf+gratis In PDF document text
- http://files.gmcceuref.co.uk/uploads/1/3/1/3/131398591/tepukixaveviwuk.pdfIn PDF document text
- http://files.pvrr.org/uploads/1/3/1/4/131438583/wexujuvemivojepipur.pdfIn PDF document text
- http://files.magiqatlas.com/uploads/1/3/0/8/130814513/zivatemurijupizowigi.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/1/0431/8488/1825/files/45714195120.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8432/5798/files/bevulajoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4358/4162/files/52609224406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9565/4554/files/90601021425.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7318/3637/files/tefuxavalugibokenetuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6071/4904/files/78246486583.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0261/0335/files/83560418834.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/6482/5758/files/81285260145.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7197/7110/files/subtracting_integers_on_a_number_line_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5063/8241/files/kojidajej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8366/1461/files/vesarupobora.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6968/6431/files/blackfathom_villainy_classic.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/career_development_interventions_in_the_21st_century_5th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9122/1911/files/pobusuwefoda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5045/8520/files/28765415352.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_off00006c72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C72 | 5388 bytes |
SHA-256: beda073d4a30eb90567ee3dbdab9246bce005a1a3fa950d8c0666a2156c887c7 |
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font_01_sfnt_off00007ece.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ECE | 11700 bytes |
SHA-256: f406f285575e2e4415d988386113c6cd39937cde82735c1ba5227a4649f61c16 |
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