MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded JavaScript likely facilitates the redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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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 https://pistant.ru/uplcv?utm_term=evaluating+limits+graphically+worksheet+answers PDF link annotation
- http://msinziniering.com/userfiles/file/70980271363.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/d2b2bfaf4eb5cb11390bd762ff07ccb9/vuzizizukadudunesewiliri.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160fcee073dc67---nixuga.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/ktsrl820sv46v7ii13dfcva1i7/34290931369.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/662d944ad7ae8593b1ea081a01c7ba1e/10121062861.pdfIn PDF document text
- http://bhs76reunion.com/clients/e/e7/e717e6e8e39ea4daeda922698d41f3c9/File/80489610799.pdfIn PDF document text
- http://odessahighschool1970.com/clients/7/70/70263b1be1b93b62200e198143f59f20/File/53117793896.pdfIn PDF document text
- http://sovaimm.it/userfiles/files/mufisawidugoli.pdfIn PDF document text
- http://droneducational.com/admin/userfiles/file/71907867085.pdfIn PDF document text
- http://www.herbertvanderbrugghen.nl/draft/nasitivitituli.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0aa1afaaf---78385587479.pdfIn PDF document text
- http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/75051216626.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/63c91ae26e789f1f6851e23e099e9d0c/84848788652.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/dbc90896bea20b5c0aec9cfc4cd4cb37/jusadalawukelit.pdfIn PDF document text
- http://pujcovnanaradi-tvarozna.cz/userfiles/files/vamozobizofaruberukonuwax.pdfIn PDF document text
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/kraqnt9ut7d6qjmbmk9hu17qd6/46042112803.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/zugonisapafinajidexuvusal.pdfIn PDF document text
- http://khodahoanglang.com/admin/webroot/upload/image/files/xigusexapewibelafikejamo.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c287331bbd3---73624735252.pdfIn PDF document text
- https://ip-kamera-rendszer.hu/ckfinder/userfiles/files/43997248584.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/pebutozewub.pdfIn PDF document text
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/6a4238eho9fmsugt5dve1s3v67/diwazasep.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/1593a7fe2e603b3825c23a9e1328c6ac/90115419341.pdfIn PDF document text
- https://homecareangels.ca/files/files/files/9603312382.pdfIn PDF document text
- http://cnc-soustruzeni.cz/files/file/tukaxurinabuwowet.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_off0000ed26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED26 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010538.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10538 | 16648 bytes |
SHA-256: 1d74b3e1b4993ee873f2753b58b793c48a3019fc848ed10e10902b0bf9687951 |
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font_02_sfnt_off0001308e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1308E | 11264 bytes |
SHA-256: a18ab87892fa42eff02fcd59b4b9fa7266931906e084db335c90a8af6118a0fd |
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