MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL and a title suggesting a lure for users searching for specific academic content. The ML classifier strongly indicates maliciousness, and the PDF structure includes a mass external link farm, further supporting a malicious intent.
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/pify?keyword=arboles+de+decision+ejercicios+resueltos+investigacion+de+operaciones+pdf
- http://files.newjerseywritingalliance.org/uploads/1/3/1/0/131070841/4540fe0f.pdf
- http://files.theberchmansinitiative.org/uploads/1/3/1/4/131437839/wodekijidabofe-toxupekuvi-divova.pdf
- http://zigatifu.svhcva.org/uploads/1/3/1/4/131482995/fatagu.pdf
- http://vawunir.hight.nz/uploads/1/3/0/7/130775850/6272995.pdf
- http://files.mod-habitat.com/uploads/1/3/0/7/130740174/3a7f5.pdf
- https://cdn.shopify.com/s/files/1/0430/1671/6437/files/faparaxutavorim.pdf
- https://cdn.shopify.com/s/files/1/0430/8362/8697/files/5435582074.pdf
- https://cdn.shopify.com/s/files/1/0434/0829/4044/files/15768054751.pdf
- https://cdn.shopify.com/s/files/1/0438/2880/5789/files/nafupobubugudeta.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dovaxetudomorunuk.pdf
- https://cdn.shopify.com/s/files/1/0429/7487/1711/files/emotional_freedom_technique_eft.pdf
- https://cdn.shopify.com/s/files/1/0427/9291/1007/files/nowuwinudu.pdf
- https://cdn.shopify.com/s/files/1/0434/0069/1866/files/java_algorithm_interview_questions.pdf
- https://cdn.shopify.com/s/files/1/0428/0333/1231/files/41565182370.pdf
- https://cdn.shopify.com/s/files/1/0432/3947/3314/files/53754458625.pdf
- https://cdn.shopify.com/s/files/1/0432/8597/1112/files/estrada_vs_escritor.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_off000062f3.bin54a39cc897da50cc9faa9272f024ab391923a77e8bd1681982bb9c409b853024 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F3 | 5588 bytes |
font_01_sfnt_off00007609.bine240ef47494515cb2decafb43d4b9fb9c2eb05bdc352fd3b99a1ef4c62e2ffd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7609 | 11792 bytes |
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