MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDF documents. It also exhibits characteristics of a link farm, with numerous URLs pointing to potentially compromised or disposable hosting sites. These factors, combined with ClamAV detection as a phishing trojan, strongly indicate a malicious intent to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://infrive.ru/uplcv?utm_term=living+as+missionary+disciples+pdf
- http://grandrosso.com/js/upload/files/newefusefej.pdf
- https://pergamine.com/ckfinder/userfiles/files/79988636329.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6463471ed1---lipapogujo.pdf
- http://abacusnancy.com/userfiles/file/62333337547.pdf
- https://supermagnum-bg.com/userfiles/file/30415305450.pdf
- https://pestresolution.pt/site/upload/file/tixat.pdf
- https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/35939c173ccb003c36d3b3d66335118b/boforitolofutaruvi.pdf
- http://119hero.kr/userData/board/file/22979106012.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/78441ac00e22b1931d1df94b5c903b5d/lobumenetelobinadaxesij.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160b363740ee03---78548088792.pdf
- http://dmhu.eu/uploads/uplib/file/79931666032.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ba4b89479be---xuvuxozowekujitadibi.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cf661d2ad---pesovoxudatedale.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1cebaebe8---jazemuxupulexelasaki.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/5c5d674533ff7774b24a645de5afcfd4/39649460664.pdf
- http://alexanderkanevskyartgallery.com/clientMedia/file/3393440702.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16082f3f3c7900---puzodu.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c94b18f3523---69569828177.pdf
- http://learnazia.com/fck/imagesfile/gonusijitupamobolot.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/2e90eb537cb48f174f4e3b899909b400/53126114679.pdf
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/b2c80110d186516e5642279bb65858ce/11137081478.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/4a17377edffd4489cee7fd48d1805724/97568263934.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16096b9e26b4f0---20391468145.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_off0000fad9.bin4e0eb589c38fd86b275852c0e74d2d9f0bba0730aafdce9bd165305e54a83163 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAD9 | 16844 bytes |
font_01_sfnt_off00012640.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12640 | 16792 bytes |
font_02_sfnt_off00013e57.binf0a132db0faf66cfc44f87ec22b163594b34a6a137742993c1cfb890ca4f3474 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E57 | 11000 bytes |
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