MALICIOUS
154
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 one identified as a malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a mass external PDF link farm, suggesting a SEO poisoning or link farm attack. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL.
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=esp%25C3%25A9cies+de+atos+administrativos+pdf
- http://files.kelmaraircraftsales.com/uploads/1/3/2/7/132740488/4819381.pdf
- http://rarixoro.thetaoofrudy.net/uploads/1/3/1/8/131856772/sazux.pdf
- http://files.brandtheinterpreter.com/uploads/1/3/1/4/131407135/147adc80a80b616.pdf
- https://cdn.shopify.com/s/files/1/0431/6450/0122/files/sotizufavigafavilibemelow.pdf
- https://cdn.shopify.com/s/files/1/0434/7353/5138/files/80962344004.pdf
- https://cdn.shopify.com/s/files/1/0432/6211/6008/files/fetapatejitulomuf.pdf
- https://cdn.shopify.com/s/files/1/0427/4287/4278/files/wimow.pdf
- https://cdn.shopify.com/s/files/1/0440/6686/5302/files/genetics_neet_questions_download.pdf
- https://cdn.shopify.com/s/files/1/0431/6728/5408/files/ziwotexesotagolixasutenu.pdf
- https://cdn.shopify.com/s/files/1/0427/6020/8540/files/tiridodogow.pdf
- https://cdn.shopify.com/s/files/1/0429/6900/6236/files/98637268971.pdf
- https://cdn.shopify.com/s/files/1/0432/9770/2046/files/63925585677.pdf
- https://cdn.shopify.com/s/files/1/0435/2281/8200/files/jukasem.pdf
- https://cdn.shopify.com/s/files/1/0437/1080/8217/files/22896547515.pdf
- https://cdn.shopify.com/s/files/1/0431/2812/7645/files/zifijolutolelarinamovive.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_off0000814f.bin17e4c10f9c8708d27eb81de358400cdd57fd26f2034c0f9612bd640958b970da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x814F | 5428 bytes |
font_01_sfnt_off0000936f.bin8a51e2a91373e4b38489305a855ac448168fe559c380583394eddf9aece281a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x936F | 12528 bytes |
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