MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'treatment of dental fluorosis pdf', likely a lure to encourage clicks on the embedded malicious link. The ML classifier also strongly indicated maliciousness.
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/wb?keyword=treatment%20of%20dental%20fluorosis%20pdf
- http://files.gracesaunders.com/uploads/1/3/2/7/132740458/nejezigokeparupigi.pdf
- http://files.hummingbirdeats.com/uploads/1/3/0/7/130738753/zeraj.pdf
- http://files.nationalresprays.co.uk/uploads/1/3/1/4/131437660/870595b63b377.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1297022614.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdf
- https://cdn.shopify.com/s/files/1/0428/0261/0335/files/89447151941.pdf
- https://cdn.shopify.com/s/files/1/0430/7147/1767/files/kozoba.pdf
- https://suzoxafa.files.wordpress.com/2020/06/55657146253.pdf
- https://jonaluzoj.files.wordpress.com/2020/07/dizokuwixenugulom.pdf
- https://fafigunik.files.wordpress.com/2020/06/govubujugefotovofuw.pdf
- https://leniwibi.files.wordpress.com/2020/07/tefuxifojali.pdf
- https://rejosejel.files.wordpress.com/2020/07/77372979281.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdf
- https://cdn.shopify.com/s/files/1/0429/9715/3943/files/vogakamuvun.pdf
- https://cdn.shopify.com/s/files/1/0434/3146/1016/files/xorogekepubet.pdf
- https://cdn.shopify.com/s/files/1/0428/9586/8057/files/4563012313.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wabodenerevugibew.pdf
- https://cdn.shopify.com/s/files/1/0427/7652/7014/files/84495944898.pdf
- https://cdn.shopify.com/s/files/1/0430/8982/1847/files/nitafurajowumowevuxiba.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_off00007f45.bin1775b1c2a4ec356c22bf1b127d0898d64892c968d684fb80aee25b1076fd2b65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F45 | 5016 bytes |
font_01_sfnt_off00009033.bin7a70a2a0d99014a1f448084bfd961b52ef216f88130e20238c4ad8ac853e3e95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9033 | 10716 bytes |
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