MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a tactic to manipulate search engine results or to distribute malicious content disguised as academic papers. The ML classifier strongly supports the malicious verdict.
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=elementary+intermediate+algebra+bittinger+pdf
- http://files.thewovensnail.com/uploads/1/3/2/6/132682042/447de89.pdf
- http://files.katshelter.com/uploads/1/3/0/7/130739490/talumixemuxawe-fizetisujuvalap.pdf
- http://files.allinclusivetennis.com/uploads/1/3/1/6/131608037/kinepumifuwekeladuva.pdf
- http://files.escambialatin.com/uploads/1/3/2/6/132695392/senilix-botuxixigup.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/3794/0117/files/77629525948.pdf
- https://cdn.shopify.com/s/files/1/0432/7296/2203/files/guganewixejeridupan.pdf
- https://cdn.shopify.com/s/files/1/0433/3774/4534/files/66986835171.pdf
- https://cdn.shopify.com/s/files/1/0431/7344/5792/files/kosakadaxulukapanupan.pdf
- https://cdn.shopify.com/s/files/1/0431/7777/1164/files/teruxolikepexo.pdf
- https://cdn.shopify.com/s/files/1/0428/7817/3343/files/tinogofudokemawikos.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdf
- https://cdn.shopify.com/s/files/1/0436/8809/9993/files/33298520568.pdf
- https://cdn.shopify.com/s/files/1/0433/5167/0943/files/dilemipovifibevuvilotize.pdf
- https://cdn.shopify.com/s/files/1/0432/3858/8584/files/potitejuvuluvupedunudegus.pdf
- https://cdn.shopify.com/s/files/1/0430/6649/1041/files/welding_risk_assessment.pdf
- https://cdn.shopify.com/s/files/1/0434/1510/9797/files/how_to_save_an_imovie.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_off00005610.bin96be83fe6e4d60af2cfca20ff1d03c2eef2d9f59d9db15493cb2436b6df9b6b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5610 | 5384 bytes |
font_01_sfnt_off00006851.bina093f7b92963dfd0f4c354ecd9a5ece2ee89abb7325898d44483205e35c92312 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6851 | 9856 bytes |
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