MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=accounting+definition+book+pdf, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains references to the same malicious URL and benign Shopify links, suggesting a link farm or SEO poisoning tactic to disguise the malicious intent. The ML classifier 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=accounting+definition+book+pdf
- http://files.centralkansascorvetteassociation.com/uploads/1/3/1/6/131637853/b93fc8b7.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/8413/6086/files/70483634809.pdf
- https://cdn.shopify.com/s/files/1/0433/1274/2564/files/pt_serif_pro_caption_font_free.pdf
- https://cdn.shopify.com/s/files/1/0429/7208/6423/files/povapefofokogidi.pdf
- https://cdn.shopify.com/s/files/1/0434/9899/5864/files/16921690301.pdf
- https://cdn.shopify.com/s/files/1/0431/9779/2420/files/24868593499.pdf
- https://cdn.shopify.com/s/files/1/0433/0618/8955/files/bosifofolut.pdf
- https://cdn.shopify.com/s/files/1/0432/3649/1431/files/fanimuwewugolisobaseseseb.pdf
- https://cdn.shopify.com/s/files/1/0439/8543/6830/files/renewable_energy_sources_ppt.pdf
- https://cdn.shopify.com/s/files/1/0437/9148/3042/files/77108191234.pdf
- https://cdn.shopify.com/s/files/1/0430/6567/1833/files/gadilunolapol.pdf
- https://cdn.shopify.com/s/files/1/0432/4186/5375/files/aprender_espaol_para_nios_extranjeros.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_off00004a73.bin73cf6c4e36b6be1b2841d350c884d7059a0ee832db9689f2435f4965e4bc68e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A73 | 5000 bytes |
font_01_sfnt_off00005b8a.bin0246fbb72fa20041b711cff63f19b3de01912c94583d4f0bfaee41a11e07b47d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B8A | 9744 bytes |
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