MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=tratado+de+dermatologia+belda+3+edicao+pdf'. This URL is embedded within the document body, suggesting a lure to trick users into clicking it. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to host further malicious content. The ML classifier strongly supports the malicious nature of this PDF.
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=tratado+de+dermatologia+belda+3+edicao+pdf In PDF document text
- http://debas.greenpc.com/uploads/1/3/0/8/130873995/jotikewubemeji-lodirupamafubu.pdfIn PDF document text
- http://divuxiser.colangelocreative.studio/uploads/1/3/0/7/130740178/susupu-badewulamuguv-nimatikok.pdfIn PDF document text
- http://files.thestudioartofdance.com/uploads/1/3/1/8/131871690/2547260.pdfIn PDF document text
- http://zelofozi.nicolajanephotography.com/uploads/1/3/0/8/130873995/8446188.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/1/0433/0687/7080/files/kufanagapaxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5290/0260/files/pekatinidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0500/8293/files/minutivuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9845/4682/files/tupevojuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9200/9365/files/agile_project_management_for_dummies_cheat_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8667/6117/files/the_rock_vs_brock_lesnar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8159/6066/files/rizidonewu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0935/9520/files/44137613161.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6895/6578/files/free_wonderlic_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4309/4677/files/numuzerejoluzatunekor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3492/4440/files/63420080867.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6532/7262/files/fitonubenagudeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8838/0061/files/4073549410.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9505/5777/files/zujuvunexoge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5005/0460/files/36314293010.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_off00009abe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9ABE | 5548 bytes |
SHA-256: b542a6c2f7b5b2bf0720b2dd7d2fafc571defd3535ad4e5bd4a2a0e9619599d5 |
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font_01_sfnt_off0000ad83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD83 | 10596 bytes |
SHA-256: a681a682426868575291855cda81aa49598b2b219dc2d78f7691a6784e6bab32 |
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font_02_sfnt_off0000d1c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1C5 | 16204 bytes |
SHA-256: 31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf |
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