MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, likely a phishing lure for free downloads. The primary malicious URL identified is https://ttraff.com/pify?keyword=probability+sample+space+pdf, which redirects to other resources. While the document body is heavily obfuscated, the presence of numerous links and the ML classifier strongly suggest 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.com/pify?keyword=probability+sample+space+pdf In PDF document text
- http://lutop.gethealed101.com/uploads/1/3/0/8/130874422/2efef3dc816ff6a.pdfIn PDF document text
- http://vizuzi.dawnlsievers.com/uploads/1/3/0/7/130775436/diluzisuruxagav-siziwigesud-rukor.pdfIn PDF document text
- http://jijinidog.jamesawatsonjr.net/uploads/1/3/0/8/130813765/8237951.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/1/0432/2285/9944/files/49456971108.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1307/8168/files/3_point_hitch_backhoe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5152/1947/files/82684882855.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4642/8062/files/73453367619.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7342/0965/files/70717703868.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4094/5829/files/kedewewenasetuwitapesut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9848/1564/files/affidavit_of_death_of_joint_tenant.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9348/1885/files/21685939152.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0976/7584/files/wumeliwimelilefijavar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3446/0828/files/digalitiradunefa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7013/6230/files/90783467965.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5942/1092/files/99777818782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6287/8618/files/21974076202.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1551/1964/files/6041138737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91146339154.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_off00006685.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6685 | 5544 bytes |
SHA-256: a1c8f9e2c1e2c9c157ddf1b655db0af4c25d109cf1dc7d03bab4329d7753533f |
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font_01_sfnt_off0000794a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x794A | 14404 bytes |
SHA-256: 0af076739801fe88fd44ba49187aba5271e7160503261022fc41f3ac6c788500 |
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font_02_sfnt_off0000a6ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA6AE | 16204 bytes |
SHA-256: ffba1789c03dc4e924b119e64692b39832a6a6fa07a09b912f130fca48fe89e8 |
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