MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, specifically using an invoice/payment lure. The embedded URL `https://ttraff.com/pify?keyword=promissory+note+pdf+format` is a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'promissory note pdf format' and the malicious URL, reinforcing the lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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=promissory+note+pdf+format In PDF document text
- http://files.breakingbadluigistours.com/uploads/1/3/0/8/130813851/5362696.pdfIn PDF document text
- http://files.steelpassport.com/uploads/1/3/1/4/131483002/nibuzuperinoze.pdfIn PDF document text
- http://files.mhecblacon.com/uploads/1/3/1/4/131437351/vasak.pdfIn PDF document text
- http://files.musicboosterswinters.org/uploads/1/3/1/0/131071067/gikoz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/6743/1320/files/70257564954.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6404/2396/files/4615631258.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6092/7393/files/building_materials_handwritten_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0436/1895/files/26257402530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1566/5826/files/cbse_board_exam_date_2020_class_10_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9848/6424/files/zaxavovilemaxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7431/3622/files/xiwanaxaguxagupozin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7898/9462/files/74784186147.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5276/0224/files/xenasajutomexiwor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8180/9558/files/sotikujapulalidutena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2853/7753/files/24887306437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9809/5272/files/93116128261.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008ff9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FF9 | 5048 bytes |
SHA-256: 87992982b14b79571a8078c028beabd9c8c4e2ace25975e064259709595f98aa |
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font_01_sfnt_off0000a107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA107 | 10548 bytes |
SHA-256: 102dd1a2d931fff8ffe0827242ee0e35515247f1e1c4dcb5d5157f775bbaf731 |
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font_02_sfnt_off0000c506.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC506 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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