MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm or redirection scheme. The ML classifier strongly indicated maliciousness, and the presence of multiple external links, including those on compromised CMS uploads, supports a malicious intent to redirect users. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or SEO poisoning attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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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://oniceh.ru/uplcv?utm_term=12+state+board+physics+book+pdf PDF link annotation
- http://gyogytornasz.hu/editor_up/bafera.pdfIn PDF document text
- https://toptenstudy.com/upload/files/BodyFile__613254D37D250.pdfIn PDF document text
- https://testgit.begurholidays.com/uploads/userfiles/files/luvulij.pdfIn PDF document text
- http://asiavent.com/UserFiles/file///28684362527.pdfIn PDF document text
- http://thenext.pk/userfiles/files/fegenikel.pdfIn PDF document text
- http://the-bom.kr/upfile/files/18391062651.pdfIn PDF document text
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/197e8bac1e39122ca8ad3299ce11cc8b/wejapoxukenakuvazesesim.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/62076450406.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b28d5aabf4---nawibukokidibiwinefu.pdfIn PDF document text
- http://orenprom.com/img/account/file/daresifezelolapijotoxa.pdfIn PDF document text
- http://henskeschildersbedrijf.nl/upload/23150074044.pdfIn PDF document text
- http://poddertradingandindustries.com/userfiles/file/56496982902.pdfIn PDF document text
- https://888nv.ru/userfiles/file/fixakonetovelotifoxejiler.pdfIn PDF document text
- http://e-district.org/userfiles/file/pebuza.pdfIn PDF document text
- http://dalnoboy.net/data/filestorage/upload/files/77354006322.pdfIn PDF document text
- http://kopdesign.nl/userfiles/file/8448631960.pdfIn PDF document text
- http://mim2010.ru/userfiles/file/35059355139.pdfIn PDF document text
- http://juditphotography.com/picture/userfiles/file/62068127706.pdfIn PDF document text
- https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/12975409343.pdfIn PDF document text
- http://agriturismocorteerbatici.it/userfiles/files/bulerewegiba.pdfIn PDF document text
- https://riolospettacoli.it/filesUploads/file/78018650722.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/2758e669274c03c0ba326f929e60b7a0/funojevazerutepawokojemo.pdfIn PDF document text
- http://wxeina.com/userfiles/files/rutame.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/64357913520.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD906 | 10988 bytes |
SHA-256: 1a2f465fb72cbe8668fc012599dce25187052316a2d33a7ed8f982f593f16a8e |
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font_01_sfnt_off0000f2a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ab2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB2 | 17356 bytes |
SHA-256: a70f4477722e7f8b79a59c2c31e688f09e034641940eb61057ed035360327951 |
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