MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a mass external PDF link farm, with one primary URL pointing to 'https://ttraff.cc/pify?keyword=adestramento+de+c%25C3%25A3es+livro+pdf'. The document body contains garbled text and a reference to the same URL, suggesting a lure for users to click on malicious links. 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=adestramento+de+c%25C3%25A3es+livro+pdf In PDF document text
- http://files.thewritingtreasurechest.com/uploads/1/3/1/4/131482915/nufes.pdfIn PDF document text
- http://files.trustcondolaw.com/uploads/1/3/2/6/132696325/8833053.pdfIn PDF document text
- http://files.jenniferrosewebster.com/uploads/1/3/1/3/131383544/3157684.pdfIn PDF document text
- http://files.godcarescharities.org/uploads/1/3/1/3/131384429/1919826.pdfIn PDF document text
- http://files.michellejstreiff.com/uploads/1/3/1/0/131070846/sufatin.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/49893706483.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0145/4500/files/dibegululanekupufib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7931/8166/files/anamika_academy_maths.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/58194471063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5552/9640/files/bibovanevudokabugifaximup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0471/5427/files/jotizosudomobuwetus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8241/6281/files/45355317689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9316/4181/files/betutesepabeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3894/6981/files/horn_of_the_brown_wolf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/11029465142.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/texojorigerusoxuduk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9565/4564/files/80024611308.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_off00008218.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8218 | 5668 bytes |
SHA-256: 6e2248488e6a4f54d913f829a50c19671b191d1bcd57a7c71e0fbb963c8e0552 |
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font_01_sfnt_off000094bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x94BF | 12772 bytes |
SHA-256: d653c4fc7c791fa403942abbc0cf9ea8c78a6c944d0ad512158021b4235f43f2 |
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font_02_sfnt_off0000bbb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBB9 | 16164 bytes |
SHA-256: d781c508aaf473e50263a6aabc3f4161b7fa10724c54bb8d35addee38a7f1c44 |
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