MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external websites, including a known malicious redirector. The document body, though heavily obfuscated, contains text related to a book title and the authoring application, suggesting a lure. The primary heuristic indicates the PDF links to malicious redirector infrastructure, and the ML classifier strongly suggests maliciousness. No scripts were extracted from this sample.
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=biopsychology+9th+edition+pdf
- http://files.elyellaperfumeria.com/uploads/1/3/0/7/130740065/b2a95914096f.pdf
- http://files.graveyardshifttv.com/uploads/1/3/0/7/130775834/4613459.pdf
- http://files.mariposa-design-events.com/uploads/1/3/2/7/132712234/f69048a5e1e87fb.pdf
- https://cdn.shopify.com/s/files/1/0429/6550/0060/files/10992538119.pdf
- https://cdn.shopify.com/s/files/1/0437/8791/1319/files/giturati.pdf
- https://cdn.shopify.com/s/files/1/0434/0816/2974/files/78167133851.pdf
- https://cdn.shopify.com/s/files/1/0430/7304/4634/files/vobamajifupe.pdf
- https://cdn.shopify.com/s/files/1/0431/3425/5258/files/gidejanaf.pdf
- https://cdn.shopify.com/s/files/1/0437/1188/9573/files/xatewusajakixixovetidojab.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
- https://cdn.shopify.com/s/files/1/0428/0057/8723/files/fariloj.pdf
- https://cdn.shopify.com/s/files/1/0435/1718/2104/files/balepubolanobunoj.pdf
- https://cdn.shopify.com/s/files/1/0439/7996/4574/files/4005619847.pdf
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/vapisezuruvogovuruno.pdf
- https://cdn.shopify.com/s/files/1/0431/7010/3452/files/voboridosifinawaxe.pdf
- https://cdn.shopify.com/s/files/1/0438/5813/3152/files/lanasezurufasulu.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_off000071e2.bin996812e59ec877b40d456cd2ffdb295271859ebb5b00a5ea2d226a1cbd04129e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71E2 | 5208 bytes |
font_01_sfnt_off00008396.binedbd54594d239df2af9841575c9c34ba02b3df5ccc1b7693654c73d1cecdf58b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8396 | 10988 bytes |
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