MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, a common tactic for SEO spam or phishing. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=formal+definition+of+mass+number', suggesting a lure related to academic or technical content to entice clicks. The ML classifier strongly supports the malicious nature of this PDF.
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=formal+definition+of+mass+number
- http://files.emilycaffery.com/uploads/1/3/1/4/131437513/gutofapodofigonuta.pdf
- http://nizol.rollingrhodes.net/uploads/1/3/1/3/131383652/junufa-fedoled.pdf
- https://cdn.shopify.com/s/files/1/0435/9585/8088/files/levemilo.pdf
- https://cdn.shopify.com/s/files/1/0431/8671/6830/files/tofuwukinudedataleboguseb.pdf
- https://cdn.shopify.com/s/files/1/0440/6778/2821/files/natural_causes_of_pollution.pdf
- https://cdn.shopify.com/s/files/1/0433/9109/0844/files/63726403692.pdf
- https://cdn.shopify.com/s/files/1/0430/0718/0954/files/11406199228.pdf
- https://cdn.shopify.com/s/files/1/0436/9675/0746/files/calculus_3_final_exam_with_solutions.pdf
- https://cdn.shopify.com/s/files/1/0432/2318/7616/files/complicaciones_del_trasplante_de_medula_osea.pdf
- https://cdn.shopify.com/s/files/1/0431/7321/6411/files/donevetoperofeselon.pdf
- https://cdn.shopify.com/s/files/1/0435/1747/7019/files/xijipopijituwigidovijufu.pdf
- https://cdn.shopify.com/s/files/1/0452/0201/4357/files/xilokatiketobanivepagut.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pobilimej.pdf
- https://cdn.shopify.com/s/files/1/0428/5513/7447/files/12747370825.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_off00006609.bin2d7d66435bcd20139e637ab0a006907b45e8a811bf7cd4b2a6bbea69f8c0b9e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6609 | 5148 bytes |
font_01_sfnt_off0000776a.binc341da17f1585d4c671cebd10867103e116dbfb36d95b248d44389b388cccf67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x776A | 11140 bytes |
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