MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with numerous URLs pointing to potentially compromised or disposable hosting sites. The presence of multiple external URIs and the 'link farm' heuristic strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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://vaitinhdien.com/app/webroot/upload/files/banarew.pdf In PDF document text
- https://alyosserspneed.com/userfiles/files/85398650568.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/13f99a95331d7129335797e970d35c89/mobevimamonibojezus.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/8166446a90e92c4d9aa96500510586b0/29620374146.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/ml8b47cmo7tgabig8jih7bfdlj/wijeji.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/viviniletafe.pdfIn PDF document text
- http://czpohledavky.cz/userfiles/files/87434645764.pdfIn PDF document text
- http://bibliotekaludwin.pl/img/upload/files/puxezosot.pdfIn PDF document text
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e195fe04a7---ziriwarenebagubokul.pdfIn PDF document text
- http://techbico.vn/uploads/image/files/gajozazufazikizuf.pdfIn PDF document text
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6672854171.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1607d05898cc44---pawidolajawedijizugurafi.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/22eb149fb5dd16051d4a578b54a9dbed/wamewe.pdfIn PDF document text
- https://bititechnika.com/uploads/file/jesakin.pdfIn PDF document text
- http://amoy-art.com/Upload/file/82104505122.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/62de2122022bc79b40d98085b7877e11/24638123043.pdfIn PDF document text
- http://pattersonandoliphantfamily.com/clients/875492/File/47410494151.pdfIn PDF document text
- http://hayatteknoloji.com/webimage/file/54015469793.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d9b5a32709---dufivezidoj.pdfIn PDF document text
- https://murderescape.com/wp-content/plugins/super-forms/uploads/php/files/4ced3672f6731f52b4523b832c57ced2/fojupukogigu.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202104/file/fitukojipakubepakor.pdfIn PDF document text
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/22r2ufurqak2juh7plb2itmilq/midonelenirujefa.pdfIn PDF document text
- http://yourtruck.be/upload/ckeditor/file/90019120518.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/08b988cdbf8c2147497aad85a498769c/naxutelabasu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087f00c3ee69---luporoxipotu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=stand+for+jesusPDF 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_off0000f1a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A3 | 10516 bytes |
SHA-256: b009820b04d43e56061e1d1ec8fc738d1fb37dccc8873e9b0249e49563a2e1ba |
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font_01_sfnt_off000109bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000121d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D1 | 16956 bytes |
SHA-256: 43bad8c281a69056d8e2b22bef58f08c2a9a7bee2261a8f0bc492d0fcd53dd33 |
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