MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The ML classifier strongly indicates this PDF is malicious. The document body is heavily obfuscated, but heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress sites. The 'SE_CALLBACK_LURE' heuristic suggests the document's purpose is to trick the user into calling a phone number, consistent with phishing or tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://medvor.ru/uplcv?utm_term=banco+base+sa PDF link annotation
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16071bca859ad0---21785019603.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/5eaaa689678093f4eee286bd43e1d554/vedamis.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/9ce09c49ec4d8510456813b7f97e6875/wakilulisino.pdfIn PDF document text
- https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb498ad049---dimokorusetakinadadu.pdfIn PDF document text
- http://otvorene-srdce.sk/userfiles/file/xisevozab.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/a0hhgi69am2tbe6i6gebd1j8m0/13260536658.pdfIn PDF document text
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/b8bc219e0f9977d056b74e8cb3de8371/88923285935.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081af7064bb4---13067495160.pdfIn PDF document text
- https://thaiahpa.com/flash/files/9803459506.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aad3bfe505a---26884457645.pdfIn PDF document text
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/26f5d6cce45cdc25c8b41a64e625ab38/11289298387.pdfIn PDF document text
- http://industrialdevices.in/uploads/dogaruxipirubigi.pdfIn PDF document text
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/15c390ac9d51ac78bb565f029aa67596/27996746099.pdfIn PDF document text
- http://snsi.jp/image/news_file/3141505668.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/0b9e5b3c0f5fdf48199543e3e3ca675a/guvagusir.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/09gvn7joj28kbpurleenvg7p11/22936744160.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085d04655c1f---73733748014.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e039.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE039 | 4856 bytes |
SHA-256: 89a0d1c57bbac3f73a9d7c52e2f6d6ae54d9fef9c93337772b3c31adde26a6fb |
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font_01_sfnt_off0000f0cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0CC | 12084 bytes |
SHA-256: 3172dda0301f51130065ffef3b3aa9029ee55ee49db750e6f6d0c88a296f41bf |
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