MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=apology+letter+template+for+elementary+students+pdf, which is a primary indicator of malicious intent. The presence of numerous other links, many pointing to Shopify domains with numeric slugs, suggests a link farm used for SEO poisoning or distributing further malicious content.
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=apology+letter+template+for+elementary+students+pdf In PDF document text
- http://files.michaeltsarion.com/uploads/1/3/1/4/131455463/wifukuxo.pdfIn PDF document text
- http://files.warlockwardrobe.com/uploads/1/3/0/7/130775108/rubasiwuvesuzo.pdfIn PDF document text
- http://files.makatontrainer.com/uploads/1/3/0/7/130775249/3639445.pdfIn PDF document text
- http://files.utartstudentgallery.org/uploads/1/3/0/8/130815115/1258362.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/1/0433/5032/7454/files/31948038080.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5986/3961/files/ni_no_kuni_familiar_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6749/7880/files/subiwesuditavetufanov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2746/2301/files/usarc_form_62_r.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokesinoximirupabujikupoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4669/9165/files/21473661282.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6299/2795/files/7558131782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7913/0524/files/newivifasijufowudog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9671/1073/files/begrijpend_lezen_oefenen_groep_6.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/nukugekawisezunafifetopox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0849/1673/files/82946546266.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_off00006f1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F1D | 5288 bytes |
SHA-256: 115dc12de77881c9c659386c60bc1fd6d1b6f543f1352a27095703a4c2cb5398 |
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font_01_sfnt_off00008106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8106 | 9980 bytes |
SHA-256: d2ca8b7e2da66fa06126340706a864f3bcdc5eaeef677dd9d02486701a913baa |
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font_02_sfnt_off0000a334.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA334 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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