MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, identified as a link farm, pointing to a malicious redirector service. The document body, though heavily obfuscated, contains the primary malicious URL and numerous benign-looking PDF links hosted on Shopify, likely to lend legitimacy. The primary malicious URL is https://ttraff.com/pify?keyword=absolute+value+of+a+complex+number+worksheet, which is a known malicious redirector.
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=absolute+value+of+a+complex+number+worksheet In PDF document text
- http://files.ldsnest.com/uploads/1/3/2/6/132696233/xenogexajonu.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/1/0434/1802/6142/files/578394708.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2724/2903/files/jajilu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1615/9395/files/wopavemiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5152/2977/files/79075973740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8030/2244/files/organelos_celulares_e_suas_funoes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8904/3362/files/introduction_to_managerial_accounting_7th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5407/9904/files/core_du_nord_reportage_photo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4985/6669/files/bujejopikuzibewinijawan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6310/8003/files/benjamin_constant_adolphe_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1881/1552/files/ecological_balance_in_nature.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0459/2710/4679/files/88120129055.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
🗂 Part of campaign:
effinghamelementary.org
9 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004c14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C14 | 5668 bytes |
SHA-256: 82b5eaa4acd37f7a170b95ce05b3896f36abb88a3a07d2d1e4bafb1271cdb44b |
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font_01_sfnt_off00005f3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F3F | 10536 bytes |
SHA-256: 408983233531cc959de6fbb219affe59788e4ebd631650de73cabb38aa3a1d18 |
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