MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm, likely to distribute malicious content or conduct phishing. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://crysiq.ru/uplcv?utm_term=stardew+valley+multiplayer+console+commands PDF link annotation
- https://ljlconst.com/admin/images/file/22555705315.pdfIn PDF document text
- http://shinies.ru/img/lib/file/zozuxivapusuworupirosikon.pdfIn PDF document text
- https://keiba-like.biz/js/ckfinder/userfiles/files/29692613092.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/38ff2d680e7c81faad8c6d4bd2c8e62a/47068574429.pdfIn PDF document text
- http://barcabianca.eu/upload/file/4309513623.pdfIn PDF document text
- https://www.stnedu.com/ckfinder/upload/files/70654309605.pdfIn PDF document text
- http://khachsansapa.vn/webroot/img/files/mulusirolisese.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/cc5dae9ae6e2a8122e4881b36b1a1724/20506259235.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8fd27efb3---gozatixuponiwududuxuzi.pdfIn PDF document text
- https://yalcinplayer.com/calisma2/files/uploads/54152674204.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16074368b5444a---guwemivofuzesed.pdfIn PDF document text
- http://michaelwilliamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/36094062150.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160716054cca66---rasut.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a98db38e76---kosemavuxevo.pdfIn PDF document text
- http://zonwering-belgie.nl/ckfinder/userfiles/files/tunod.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b13549329ca---13773071134.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/93d22b73626c66c3c19320a7d38f44a1/58024911099.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/15846068639.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8b61002ab3---4248817215.pdfIn PDF document text
- https://empresa-venta.hr/files/dizanepisixi.pdfIn PDF document text
- http://tysons-cafe.com/uploads/files/92927190898.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160fd09b4d95b5---59267018794.pdfIn PDF document text
- https://bangvetthuong.com/luutru/files/25640373155.pdfIn PDF document text
- http://cathugo-catamarans.de/res/wysiwyg/file/lolulaviwufexojorefijuvug.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_off000100ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100ED | 18312 bytes |
SHA-256: e1c1430057c1e4ce51999d40b68361dc82fb10eee35d096c288fd5585c9da760 |
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font_01_sfnt_off0001302c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1302C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014843.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14843 | 11116 bytes |
SHA-256: 2509050db388ed75452fb278b22b391125c3f9e9bae13b40fd0a99a5dc9653dd |
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