MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
The PDF file contains embedded URLs that point to a domain commonly associated with malicious downloads. The document body, though partially corrupted, suggests a lure related to SQL interview questions, with a clear call to action to download a PDF. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and embedded URLs strongly suggests an attempt to trick the user into downloading a malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9202
Heuristics 4
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Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOADThe ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
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PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARMPDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://uncpbisdegree.com/download3.php?q=sql-query-objective-questions-and-answers.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=sql-query-objective-questions-and-answers.pdfIn PDF document text
- http://www.techbeamers.com/sql-performance-interview-questions-answers/In PDF document text
- https://www.careerride.com/SQLServer-Interview-Questions.aspxIn PDF document text
- http://udayarumilli.com/sql-dba-alwayson-scenario-based-interview-questions-and-answers/In PDF document text
- http://www.hypromarine.com/products%5CsqlIVQ.pdfIn PDF document text
- https://www.brentozar.com/archive/2015/03/five-interview-questions-to-ask-sql-server-developers/In PDF document text
- https://github.com/MaximAbramchuck/awesome-interview-questionsIn PDF document text
- http://www.geekinterview.com/question_details/17300In PDF document text
- https://www.careerride.com/MySQL-Interview-Questions.aspxIn PDF document text
- https://tekslate.com/tableau-interview-questions-answers/In PDF document text
- http://www.interview-blog.com/top-96-ibm-as400-interview-questions-and-answers-pdf-download/In PDF document text
- http://www.interview-blog.com/category/interview-questions/In PDF document text
- http://www.geekinterview.com/question_details/62894In PDF document text
- http://riverside-resort.net/1/the-hitopadesa.pdfIn PDF document text
- http://riverside-resort.net/1/simple-1-2-3-knitting.pdfIn PDF document text
- http://riverside-resort.net/1/surviving-goodbye-ebook-morgan-parker.pdfIn PDF document text
- http://riverside-resort.net/1/sticky-fingers.pdfIn PDF document text
- http://riverside-resort.net/1/solution-manual-communications-systems-stern.pdfIn PDF document text
- http://riverside-resort.net/1/the-american-promise-combined-volume-a-history.pdfIn PDF document text
- http://riverside-resort.net/1/the-human-resource-management-handbook.pdfIn PDF document text
- http://riverside-resort.net/1/studien-der-kinderheilkunde.pdfIn PDF document text
- http://riverside-resort.net/1/sergio-aragones.pdfIn PDF document text
- http://riverside-resort.net/1/stp-mathematics-9b-answers.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://intellipaat.com/interview-question/sql-server-interview-questions/In PDF document text
- https://stackoverflow.com/questions/1293008/constants-in-oracle-sql-queryIn PDF document text
- https://stackoverflow.com/questions/5860295/query-with-count-subquery-inner-join-and-groupIn PDF document text
- http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:3083286970877In PDF document text
- http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
- https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000431d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x431D | 10536 bytes |
SHA-256: ae15838d9b14d8a6683a18c1300b35caafe2e3c5910c6c4cf46535460f2b23e6 |
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font_01_sfnt_off0000646b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x646B | 7508 bytes |
SHA-256: 8b0df9f4b0aaa3d68e664a25c1f1497dbdc8b7f045c9026f72ce1424200051c2 |
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