MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious infrastructure, indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the target URL and appears to be a lure for statistical learning materials. The PDF_SEO_LINK_FARM heuristic suggests a large number of similar links are generated, likely for SEO poisoning or link farming to distribute malicious content.
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=introduction+to+statistical+learning+springer+pdf
- http://files.indorsia.com/uploads/1/3/0/7/130775257/meveziwagom_zesima_difosodesote.pdf
- http://files.twcnpc.com/uploads/1/3/0/7/130775490/dikutomif_gasin_fudekujafijuf.pdf
- http://files.michiganmidwife.com/uploads/1/3/2/7/132710763/jadedidanejetiwuju.pdf
- http://files.westpointclassof1968.com/uploads/1/3/2/6/132681325/xumomonosipevamet.pdf
- http://files.mnjeweler.com/uploads/1/3/1/4/131437740/fomurogoxufirofaliz.pdf
- https://cdn.shopify.com/s/files/1/0433/2758/6472/files/vapedugorelorowudo.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/14136859216.pdf
- https://cdn.shopify.com/s/files/1/0434/1969/7310/files/zubimiluboruwumipuzufube.pdf
- https://cdn.shopify.com/s/files/1/0427/8750/4294/files/palemanoke.pdf
- https://cdn.shopify.com/s/files/1/0428/8937/9993/files/80077180151.pdf
- https://cdn.shopify.com/s/files/1/0438/1310/9917/files/bopekariwukikokebifa.pdf
- https://cdn.shopify.com/s/files/1/0430/3316/5986/files/jemimajonupunotaw.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1369814796.pdf
- https://cdn.shopify.com/s/files/1/0429/9164/8929/files/25637436243.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bipifapokuwegi.pdf
- https://cdn.shopify.com/s/files/1/0429/2290/1663/files/dewegixomukuzenunozizujel.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_off0000ab4f.bin880c2276e416d8220b62fe23ade665021267c153e1ece63e5aa1a3227aa99827 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB4F | 5260 bytes |
font_01_sfnt_off0000bd41.bin4c7084d54f8ce0aa16268999bba46365b3138be07e1a0b172a1e39ec99153880 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD41 | 11136 bytes |
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