MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector infrastructure at 'ttraff.ru'. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.ru/pify?keyword=analysis+and+design+of+algorithms+vtu+notes+pdf
- http://files.northbaytales.com/uploads/1/3/1/4/131437775/63ceebb5e6cb02.pdf
- http://files.michaelcroghanphotography.com/uploads/1/3/0/7/130776273/3141ec90.pdf
- http://files.judybakerauthor.com/uploads/1/3/1/6/131606405/waserudofe.pdf
- http://files.tasteoftherunway.com/uploads/1/3/1/6/131606854/3314657.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/6750/6841/files/14331532668.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8871/files/63357262850.pdf
- https://cdn.shopify.com/s/files/1/0440/7522/1142/files/rifibi.pdf
- https://cdn.shopify.com/s/files/1/0428/9282/0643/files/dewelixabebob.pdf
- https://cdn.shopify.com/s/files/1/0432/6490/1270/files/disney_sing_along_songs_dvd.pdf
- https://cdn.shopify.com/s/files/1/0435/3998/8648/files/nemujanep.pdf
- https://cdn.shopify.com/s/files/1/0429/8869/9802/files/40012691248.pdf
- https://cdn.shopify.com/s/files/1/0432/6916/1110/files/ramujanozusopigux.pdf
- https://cdn.shopify.com/s/files/1/0431/3353/4357/files/sbi_new_atm_card_application_form.pdf
- https://cdn.shopify.com/s/files/1/0433/4059/5352/files/58164006670.pdf
- https://cdn.shopify.com/s/files/1/0431/5417/8216/files/pupamara.pdf
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/essential_idioms_in_english_book.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061bf.bin22ca141289eb2b2120f11c28b7cf31e345dfd417a04656e9282a3c30570ca6bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61BF | 5608 bytes |
font_01_sfnt_off000074ba.binf82ea4caa37418cb07895508e307923ed10f02dd7f9deebec8a32673f1829d38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74BA | 13608 bytes |
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