MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with one primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Revista natura pdf download' and the malicious URL, suggesting a lure to trick users into clicking malicious links. 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.ru/pify?keyword=revista+natura+pdf+download
- http://files.cbweis.com/uploads/1/3/0/7/130740252/dadijerusovilij-kepago.pdf
- http://teguve.mrdugalmusic.com/uploads/1/3/1/6/131606289/kanapivebelu.pdf
- http://gutaxikad.shonareppe.co.uk/uploads/1/3/0/8/130814328/1859802.pdf
- https://cdn.shopify.com/s/files/1/0434/0501/7255/files/ranch_king_mower_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/1110/5191/files/variedades_de_caf_arbica.pdf
- https://cdn.shopify.com/s/files/1/0431/3058/5250/files/rizumutopozokajizolanabur.pdf
- https://cdn.shopify.com/s/files/1/0431/3556/5978/files/9517089152.pdf
- https://cdn.shopify.com/s/files/1/0437/0425/4615/files/gixikoduvumofi.pdf
- https://cdn.shopify.com/s/files/1/0440/2121/9493/files/conjunctions_worksheets_for_grade_2.pdf
- https://cdn.shopify.com/s/files/1/0434/4440/4374/files/palamisunap.pdf
- https://cdn.shopify.com/s/files/1/0429/7791/9129/files/55097368070.pdf
- https://cdn.shopify.com/s/files/1/0436/9747/1656/files/lapidafivanuvapimilejaje.pdf
- https://cdn.shopify.com/s/files/1/0431/6299/2795/files/blackjack_game_c.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93527538138.pdf
- https://cdn.shopify.com/s/files/1/0431/0482/9602/files/76110743867.pdf
- https://cdn.shopify.com/s/files/1/0431/7052/9436/files/gibunekubinunixepe.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_off0000700d.bin6375caa3e770c489e60e63005b81e3a6eb8cd1e308720f00ddfbd0dffe2e6d7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x700D | 5192 bytes |
font_01_sfnt_off000081e4.binde8b3d71c0037899673894c040392efd2b7b32baed93f22eafd422cb7554436f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81E4 | 10524 bytes |
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