MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous URLs, many of which point to compromised CMS upload directories or are hosted on disposable domains, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan. The document body is heavily obfuscated and unreadable, providing no direct textual lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://infrive.ru/uplcv?utm_term=properties+of+exponents+definition PDF link annotation
- https://eyescare.vn/app/webroot/upload/ckfinder/files/putajax.pdfIn PDF document text
- https://pernambucoimortal.com/imagens/files/16202701564.pdfIn PDF document text
- https://lombardpruszkow.pl/local/userfiles/file/95494047290.pdfIn PDF document text
- http://zetrade.cz/userfiles/file/84728816928.pdfIn PDF document text
- http://upservice.expert/admin/ckfinder/userfiles/files/7210715046.pdfIn PDF document text
- http://studiotecnicofrisoli.com/userfiles/files/37110784935.pdfIn PDF document text
- https://datatalk.ilvzhou.com/upload/files/2021/09/202109070330552766.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/2c203100573236de6d8355eb9f14e3c8/rawinulunuvidikej.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130accb89468---kumutepira.pdfIn PDF document text
- https://netshopnepal.com/userfiles/file/24683344151.pdfIn PDF document text
- http://acrclubinversores.com/files/galeria/files/14171811305.pdfIn PDF document text
- http://dkstores.gr/userfiles/file/pumitilavapagag.pdfIn PDF document text
- http://capitaldanceacademy.com/userfiles/files/18973658755.pdfIn PDF document text
- http://skidubravy.sk/spravca/ckfinder/userfiles/files/mimedogubemesi.pdfIn PDF document text
- http://ashioke.com/images/library/File/ruzot.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/a1ee055e37f5738e17c2bc8d194c7564/9305066958.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/75bdaf691d11760cae97995591e7994e/zewivu.pdfIn PDF document text
- http://thedreams.cz/files/wukerilajufadaf.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/2259e9fced52ee174604b3f03fca2b2e/7261802730.pdfIn PDF document text
- http://polyalpan.hu/_user/file/jamunovizubavidufu.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/kebor.pdfIn PDF document text
- http://seanmore.com/userData/board/file/pixilu.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/82202282391.pdfIn PDF document text
- http://www.serenissimaservizi.com/files/68131810816.pdfIn PDF document text
- http://pn-tech.net/userData/board/file/44269541178.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_off0000d53c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD53C | 10388 bytes |
SHA-256: 958ac767750fb94818746061737c8e934a437e38161953ef301d9b7f60b0e7a9 |
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font_01_sfnt_off0000ecdd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECDD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104EF | 19716 bytes |
SHA-256: 5a59da2d458025a740d8f752fa4f0b2c0ce460a80a5b52bb3e57e47ca5c3c92b |
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