MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The primary malicious URL identified is https://ttraff.ru/pify?keyword=common+themes+in+literature+pdf. The document body is heavily obfuscated but contains references to the redirector URL. The ML classifier also strongly flagged this PDF as malicious.
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=common+themes+in+literature+pdf
- http://madof.candlesbybarwick.com/uploads/1/3/1/4/131437823/fipafaxipiwivosakuv.pdf
- http://files.valleyliberator.com/uploads/1/3/1/6/131606035/padavosagog.pdf
- http://files.thedrewdrake.com/uploads/1/3/1/6/131606453/4ac4b28.pdf
- http://files.jdudleysmith-acupuncture.com/uploads/1/3/0/7/130776381/tupinob.pdf
- http://files.guskampfans.com/uploads/1/3/0/9/130968988/nijolesejisow.pdf
- https://cdn.shopify.com/s/files/1/0430/9604/7783/files/catalasa_en_plantas.pdf
- https://cdn.shopify.com/s/files/1/0439/5941/9038/files/child_psychology_topics.pdf
- https://cdn.shopify.com/s/files/1/0431/8494/7357/files/28506823914.pdf
- https://cdn.shopify.com/s/files/1/0436/0133/0339/files/armory_v._delamirie.pdf
- https://cdn.shopify.com/s/files/1/0436/7171/5993/files/math_games_book.pdf
- https://cdn.shopify.com/s/files/1/0434/6108/3301/files/lufareve.pdf
- https://cdn.shopify.com/s/files/1/0430/0305/2191/files/el_alcoholismo_consecuencias_y_prevencin.pdf
- https://cdn.shopify.com/s/files/1/0435/3058/4213/files/ctet_answer_key_2020_set_s.pdf
- https://cdn.shopify.com/s/files/1/0435/1698/5503/files/blackberry_android_9_pie.pdf
- https://cdn.shopify.com/s/files/1/0432/3111/7467/files/16870462322.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000762a.binb151a2b65d30e7b348fb6e5bc9c7733e1eab688f2c803aeabc705a8fc9787488 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762A | 5188 bytes |
font_01_sfnt_off00008799.binfd016f49880352432535185f95493f68af3db775a5e5903c79cb81943b073b43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8799 | 10488 bytes |
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