MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=cambridge+academic+english+book+pdf'. This indicates the document is designed to redirect users to malicious sites under the guise of providing academic resources.
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.cc/pify?keyword=cambridge+academic+english+book+pdf
- http://files.aponysparadiseequinerescue.org/uploads/1/3/1/4/131438234/falul-lelonozunesa-sepulen.pdf
- http://vulewi.pauldingcountyogs.org/uploads/1/3/2/6/132682646/tatan-xotasasulokep-sonatipulaseg-dalupaj.pdf
- http://bosuw.danielleabrams.com/uploads/1/3/0/8/130814017/zutozufazomejiwez.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/3803/1518/files/jogovomorizixujajipudite.pdf
- https://cdn.shopify.com/s/files/1/0434/7628/7648/files/32071014994.pdf
- https://cdn.shopify.com/s/files/1/0431/5083/5878/files/cestodos_morfologia.pdf
- https://cdn.shopify.com/s/files/1/0430/4768/2201/files/3851628229.pdf
- https://cdn.shopify.com/s/files/1/0432/4225/8587/files/11604316785.pdf
- https://cdn.shopify.com/s/files/1/0436/9213/0458/files/74307302423.pdf
- https://cdn.shopify.com/s/files/1/0430/6924/3549/files/miwabenudevafefip.pdf
- https://cdn.shopify.com/s/files/1/0438/1055/4016/files/dudix.pdf
- https://cdn.shopify.com/s/files/1/0434/1461/8262/files/jikafipisajerurukazej.pdf
- https://cdn.shopify.com/s/files/1/0431/6535/2102/files/vertical_farming_philippines.pdf
- https://cdn.shopify.com/s/files/1/0436/0844/0995/files/werajurab.pdf
- https://cdn.shopify.com/s/files/1/0434/5859/2921/files/15964041190.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_off000046bc.bin6c2a718d8c692628a45e540c1afd7ff6cc085afa40eea06692f4857b52279068 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46BC | 5680 bytes |
font_01_sfnt_off000059d4.bin517237635349b2ad778bb1310154ce69f8beaf27d935b5277a9aa3f7f0eeeedf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59D4 | 9264 bytes |
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