MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF document contains a link farm and a malicious redirector URL, indicating a phishing or social engineering attempt. The primary malicious URL identified is https://ttraff.cc/pify?keyword=wastewater+treatment+plant+design+student+workbook+pdf, which likely leads to a harmful destination. The document body, though heavily obfuscated, contains references to the malicious URL and other benign-looking PDF links, suggesting an attempt to disguise malicious intent.
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=wastewater+treatment+plant+design+student+workbook+pdf In PDF document text
- http://files.positivegundogsmn.com/uploads/1/3/1/3/131380471/9407882.pdfIn PDF document text
- http://files.ktlindemann.com/uploads/1/3/0/7/130740231/bedizib.pdfIn PDF document text
- http://files.wileyscience.com/uploads/1/3/1/0/131070799/1772342.pdfIn PDF document text
- http://files.epiphanythunderbay.com/uploads/1/3/0/8/130814208/sazuradapozu-zupobit.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/1/0434/6612/9574/files/82681656048.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1764/9819/files/26463956132.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7478/9281/files/fimapatifopabitobarilojin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8030/3270/files/fowiwekonosu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8333/2773/files/factorizacion_trinomio_cuadrado_perfecto_ejercicios_resueltos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8533/8526/files/latex_subfigure_package.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9108/1882/files/depizezafikujugop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7055/3238/files/85378657811.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8086/6209/files/96995930214.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2558/7610/files/camino_frances_etappen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2266/3331/files/49477895397.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off00008ad9.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x8AD9 | 18176 bytes |
SHA-256: ff3423ea8091bcee10dca8e581881a1f2104a35fbbf824c2304c7397e6b0b6ee |
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font_00_sfnt_off00005551.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5551 | 5672 bytes |
SHA-256: ff494561c6ed8a2a972a773e47cf7d28effe3b9ea1fa79278cc8515d13d7c4af |
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font_01_sfnt_off00006897.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6897 | 10040 bytes |
SHA-256: b6babf82acaafb265ff68ad9b98cb2d5ffea8c45ec75d4ed561ce46c3dd4cd54 |
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