MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with many links pointing to potentially malicious redirectors. The primary heuristic firing indicates a PDF redirector link to 'ttraff.cc', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=cambridge+b2+speaking+exam+pdf', suggesting a lure related to a Cambridge B2 speaking exam. The numerous embedded links, including those hosted on Shopify, are likely part of a link farm designed to obscure the malicious destination.
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=cambridge+b2+speaking+exam+pdf In PDF document text
- http://files.rabbitrailsupply.com/uploads/1/3/0/7/130775537/b6cb522c50a3.pdfIn PDF document text
- http://files.healguyana.org/uploads/1/3/0/7/130740073/2170180.pdfIn PDF document text
- http://dutisu.pagesustainability.com/uploads/1/3/1/8/131856917/3137921.pdfIn PDF document text
- http://files.holistichealthactivation.com/uploads/1/3/1/4/131406520/7827784.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/1/0431/6630/2376/files/nitewubedugupoxitaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8471/7979/files/sizekal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3826/7809/files/gezesonisavowiga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4416/6037/files/kidubo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4883/6004/files/wilaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8600/2843/files/xuwit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9056/6556/files/70147111547.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7079/1573/files/49527251737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3885/0728/files/fuvenerumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7342/8888/files/bonitas_bonsave_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0734/3779/files/65574684808.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4115/2421/files/2682000070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/717233502.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_off000076a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A2 | 5356 bytes |
SHA-256: 6eabd8b8b008dcb97713e40a702318f960c3f8ef5a6b927f7f6fb9fa62cbd190 |
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font_01_sfnt_off000088c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88C0 | 10772 bytes |
SHA-256: d474e78b45897706fe48f4b8bdea9a143e3119c24e5449df4f5f63ed1f1ef779 |
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font_02_sfnt_off0000ac45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC45 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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