MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs that point to compromised WordPress sites and other domains, suggesting it functions as a link farm to distribute malicious content or phish users. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://crysiq.ru/uplcv?utm_term=what+do+u+do+reply+in+english PDF link annotation
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614142e9c975b---vusatosodovewitera.pdfIn PDF document text
- http://korsorlampang.net/user_img/files/30539630941.pdfIn PDF document text
- http://daithanhnam.com/upload/files/sumematat.pdfIn PDF document text
- https://marblo.com/app/webroot/img/files/javubez.pdfIn PDF document text
- https://108pizza.pl/uploads/userfiles/files/morubevikasovoribikil.pdfIn PDF document text
- http://polenes.cl/userfiles/file/49869722200.pdfIn PDF document text
- http://thesei.com/In PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/000ab48d0677b6240deabe63945da75d/vodiworesumumu.pdfIn PDF document text
- http://eventclub.pl/userfiles/file/vurofizugedu.pdfIn PDF document text
- https://lanegarrett.net/userfiles/file/14466828712.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150c2267e3d3---xejubimitipabaxu.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/869c731a5566c80185bf29ca933a584a/13658122406.pdfIn PDF document text
- https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/bomese.pdfIn PDF document text
- http://acudrved.com/ckfinder/userfiles/files/puzalij.pdfIn PDF document text
- http://pinzimoniofiumicino.eu/userfiles/files/57571142141.pdfIn PDF document text
- http://apmnir.ro/fckfiles/file/pivumawesenererizasabof.pdfIn PDF document text
- http://abwcolley.com/uploads/files/29959825034.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16136e4d49e072---kitiridaguxitewudibod.pdfIn PDF document text
- https://pierrelemagicien.com/userfiles/file/55283337895.pdfIn PDF document text
- http://7sate.com/filespath/files/20210916010542.pdfIn PDF document text
- http://a-swiss.com/upload/userfiles/file/29612558309.pdfIn PDF document text
- https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/todeduvakikun.pdfIn PDF document text
- http://thehbbq.com/uploads/files/16185427726.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613e72c427440---vepuvogarebuzevigowu.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://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_off0000e481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE481 | 19108 bytes |
SHA-256: 829c922631dacbdcd016b513fec4a0cc8fa1cdc942a6261909b3291b235f436e |
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font_01_sfnt_off00011551.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11551 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D68 | 10880 bytes |
SHA-256: 90a0b37025365d60b0c6600003f05ce071c4443f3ad835c91bc1d83ca1107919 |
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