MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, with the primary link pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to manipulate search engine results or distribute malicious content through a link farm. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body is heavily obfuscated.
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=5+characteristics+of+a+good+research+problem+pdf
- http://files.theperfectpairdolphintrilogy.com/uploads/1/3/1/4/131453823/ba8208d48f81dc.pdf
- http://files.kootsadventure.com/uploads/1/3/0/7/130739696/d2eb6a2786c73.pdf
- http://files.ryanshay.org/uploads/1/3/1/8/131859261/jopulekenuw_mabisefamaxuza_nawirovoxemi.pdf
- http://files.puertoricanparade.org/uploads/1/3/1/3/131382217/272f61714.pdf
- http://files.smestheatre.com/uploads/1/3/0/9/130969506/8218582.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62092070186.pdf
- https://cdn.shopify.com/s/files/1/0437/6271/2734/files/loxifafatodefaropegug.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdf
- https://cdn.shopify.com/s/files/1/0429/3387/8940/files/zuzipekipijaxo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdf
- https://cdn.shopify.com/s/files/1/0431/4949/2384/files/20600653743.pdf
- https://cdn.shopify.com/s/files/1/0427/5470/3526/files/58463109795.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/wawamamufufotijufekegipe.pdf
- https://cdn.shopify.com/s/files/1/0435/3730/1653/files/71796226382.pdf
- https://cdn.shopify.com/s/files/1/0432/8580/7269/files/85708314441.pdf
- https://cdn.shopify.com/s/files/1/0434/9542/4165/files/93337496199.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_off000072dd.bine38b9872e544fdeab5abe5eaffdb9003d2f5612f59ae697012a49d5fcb70a6bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72DD | 5420 bytes |
font_01_sfnt_off00008544.binb94268e0c377d2e1b7d0043f7e41b177aae2747bd3055b81f3520a99d1ec5775 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8544 | 9752 bytes |
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