MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to known malicious redirector infrastructure at `ttraff.ru`. The document body, though heavily obfuscated, contains text related to 'pilot aptitude test questions pdf' and the malicious URL, indicating a lure to direct users to potentially harmful content. No scripts were extracted, but the presence of numerous links and the malicious redirector strongly suggest a phishing or malware distribution attempt.
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=pilot+aptitude+test+questions+pdf
- http://files.northeastchristiancollege.com/uploads/1/3/2/7/132740250/ralarumekaxigu_kevibazo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/7659/1509/files/16115195021.pdf
- https://cdn.shopify.com/s/files/1/0432/2813/5592/files/velivunulilutedag.pdf
- https://cdn.shopify.com/s/files/1/0435/1708/3802/files/35948806384.pdf
- https://cdn.shopify.com/s/files/1/0428/6211/7023/files/27047289235.pdf
- https://cdn.shopify.com/s/files/1/0437/5222/6974/files/mewezemesavatawurobuzus.pdf
- https://cdn.shopify.com/s/files/1/0432/0785/2192/files/72975919827.pdf
- https://cdn.shopify.com/s/files/1/0431/7937/6798/files/34812965628.pdf
- https://cdn.shopify.com/s/files/1/0431/5077/0333/files/4._4_biomes_worksheet_answer_key.pdf
- https://cdn.shopify.com/s/files/1/0446/9224/2588/files/past_simple_present_perfect_exercises_intermediate.pdf
- https://cdn.shopify.com/s/files/1/0429/5612/8412/files/30270101289.pdf
- https://cdn.shopify.com/s/files/1/0430/3503/3757/files/clinical_aromatherapy_jane_buckle.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006984.bin6273692087b53e7721552542d572dae33028a098873da9a957be090d5f8fbf81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6984 | 5064 bytes |
font_01_sfnt_off00007ac7.bin04416c06480388d7e367f29ebdc37aee5620d7f81c0a66b6c5def6fb89013069 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AC7 | 13936 bytes |
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