MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. ClamAV and ML classifiers identified this PDF as malicious, specifically flagging it as phishing and a trojan. The embedded JavaScript likely facilitates the redirection or exploitation process.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://www.alex-vasilkov.ru/images/wisdom/file/zapozudewo.pdf In PDF document text
- http://mulherinscampground.com/clients/879992/File/nopezerutos.pdfIn PDF document text
- http://kochamsushi.pl/UserFiles/file/56946119220.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/62425302042.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/zubinabi.pdfIn PDF document text
- http://detaycopymatbaa.com/userfiles/file/7604598910.pdfIn PDF document text
- https://egf.tw/test2/images/file/95604468826.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/hpj30g35v11pakce059en87hmu/50851502550.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/53602820594.pdfIn PDF document text
- https://semagro-msw.ru/pics/images/file/kuxuwugoxelewixabeberimot.pdfIn PDF document text
- http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/golifilixeki.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eee5f707bf---mesadimedanozuwumimax.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/gab7nfdlt2h1cjru9i4leqcmjp/14506497642.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c99c1422f---65683583724.pdfIn PDF document text
- http://consol.hu/images/uploadedimages/file/52069198417.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094247270998---rerakunenez.pdfIn PDF document text
- http://k2plusinterior.com/userfiles/39504928681.pdfIn PDF document text
- http://vienhung.com/webroot/img/files/73284589853.pdfIn PDF document text
- http://wonderpanel.com/app/webroot/img/file/91532005650.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c7749b4c7a5---lukazevirejirepudinum.pdfIn PDF document text
- http://hillhouseclassof1961.com/clients/c/c9/c9b049383fb65e98d0a4dcab6c176392/File/wevedoda.pdfIn PDF document text
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/91ce9fe45c9b8cece972a7d905d13711/rejede.pdfIn PDF document text
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9b6b0a34b---samonopilisiregitir.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160929e6bde8bf---rafuxugovilululuz.pdfIn PDF document text
- http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/rewojimufopigix.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/lv7gvbh7mkrqvk9fmkighf8osj/jaxejimidifi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=j+angielski+czasy+pdfPDF link annotation
- 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_off0000d270.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD270 | 17500 bytes |
SHA-256: e00582c779e3e965a43ebc8898239193cdef0dcf67b4ff565032441a25d0011b |
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font_01_sfnt_off0000fe14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE14 | 10732 bytes |
SHA-256: fab60e4fde0f12aa8ff87f4f4a1d68d135b557f786b6dfb5c3fa42a34ea2a9a4 |
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font_02_sfnt_off000116b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116B2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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