MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external resources. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that at least one URL, 'https://ttraff.ru/pify?keyword=capitulo+2a+actividad+12+answers', leads to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a mass of external links, likely for SEO manipulation or to distribute malicious content. The document body text, though partially corrupted, contains the phrase 'Capitulo 2a actividad 12 answers', suggesting a lure to trick users into clicking the links.
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=capitulo+2a+actividad+12+answers In PDF document text
- http://files.magdazaslona.com/uploads/1/3/2/3/132303013/d1e805cf7e8d2.pdfIn PDF document text
- http://fojiv.trikalashelterdogs.com/uploads/1/3/0/7/130738902/5266317.pdfIn PDF document text
- http://files.gianlucastradiotto.com/uploads/1/3/0/7/130776402/88d2d70c3.pdfIn PDF document text
- http://files.centraleuropeanstringquartet.com/uploads/1/3/1/6/131637307/5073391.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/1/0427/9291/1007/files/88999031817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7426/4993/files/sabudi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3124/8541/files/benchmarking_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3127/3383/files/192_168_119_32400_web.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9432/7974/files/8122420511.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4976/0406/files/botanica_plantas_medicinales.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9496/6436/files/sokimagene.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1389/6352/files/harcourt_math_4th_grade_workbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3033/1047/files/xebezogafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5180/9957/files/pugaduw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7813/9556/files/dolik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1423/4013/files/84697451218.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000680e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x680E | 5308 bytes |
SHA-256: e723fc0bc3a9fc2e2743059f368c88ee961548879e11f6672daea8979b05ca73 |
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font_01_sfnt_off00007a3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A3B | 10588 bytes |
SHA-256: 7123bc990356bf367482f9062f5c52e4628144821454a18389f27d16540f421c |
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font_02_sfnt_off00009e7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E7A | 16204 bytes |
SHA-256: 31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf |
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