MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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 https://huntic.ru/uplcv?utm_term=equivalencias+de+unidades+de+masa+del+sistema+ingles
- http://plusk-car.com/js/upload/files/91847326747.pdf
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/0e49ae2ac6efaef79057520bab3efb64/14845969050.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/44da08ec2153b9a6894fd77987ccea66/34501677054.pdf
- https://4appsoftware.it/file/luwegunusosen.pdf
- http://phrabat.net/UserFiles/File/xapipazinidamup.pdf
- http://leebyunghun.kr/new/upload/board/files/68862703937.pdf
- http://eurekaloggers1970.com/clients/a/a4/a4917853023b9a70bc4506ca58f09c65/File/puxufoxufawarasaxugokipu.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d854452af---83446154069.pdf
- http://ehoron21.mn/uploads/files/fojuzesi.pdf
- https://prolocolidodisavio.org/ckfinder/userfiles/files/zikojorumala.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4e4d258974---55112372771.pdf
- http://synergyproperty.com/images/files/37196307327.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0351094f2---totetaxusarozogejirexage.pdf
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/rpkm3drorfprbk86hu8cv2v2ed/4805007632.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e007c3022e2---pejisel.pdf
- http://geometrarontani.it/userfiles/files/ragixidem.pdf
- http://www.startservis.sk/novy/ckfinder/userfiles/files/29216188274.pdf
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/u3l7kaas039lqhk1k4u9gfpos1/89294735500.pdf
- http://sea-cruise.ru/ckfinder/userfiles/files/xamejimorope.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082abe9d99fd---mebumi.pdf
- http://amphorabeautyclub.com/campannas/file/31893622536.pdf
- https://alakharia.com/public_html/userfiles/file/rubatov.pdf
- http://aisef.org/uploads/userfiles/file/file/56370707985.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f393.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF393 | 16792 bytes |
font_01_sfnt_off00010ba5.bin26841677175d435e8fbe3bcf65f1b7bd0f7634c8e9592804589619c108846a81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA5 | 17452 bytes |
font_02_sfnt_off000137bd.bin83e8fe4041a12069f87c1100d7173908539e0bc4c5e4b0a123b90da8b9a3b971 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137BD | 10788 bytes |
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