MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to lure users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9872
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 http://hongshengfish.com/uploadfiles/2021062809483968479.pdf In PDF document text
- http://etre-belle.su/images/file/64342055630.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/kugivix.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160884910bcfda---88913905636.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160763836ef721---vagimidu.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607437ca946a9---31944038402.pdfIn PDF document text
- http://chiangmai-clean.com/user_img/files/nariwakiso.pdfIn PDF document text
- https://condicionamentofisico.com/arquivos/file/21566089527.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5877007b6---23555149550.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16073fd2152e13---30813570528.pdfIn PDF document text
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/a1e2ishkd2qtgtd407fvvm3dq2/96523621061.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e782983516---nogakanulixajiwibe.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c400efba5a9---vowak.pdfIn PDF document text
- http://hc6999.com/userfiles/files/74130096128.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/2b4da99435e68341724d353ccf99f882/9809247411.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723dda27e05---wukukegizag.pdfIn PDF document text
- http://come2menorca.com/images/file/5224661188.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/d4rgjqbrg41287o8416bvoemod/32915399329.pdfIn PDF document text
- http://zulaikhatextile.com/userfiles/files/dulokaz.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160b3606c35eca---38710240247.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c6f34a548154ce0365053b639ba512c4/60547940287.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/4e7d3cc8f938e0cc8d621efca19fd855/wivefirunotojowewikif.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/17172e0f1fdfed6b9e22a90b5b9647b6/2414841408.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/v47034pi6mah777dr6fuqtuls2/61012000615.pdfIn PDF document text
- http://zap-interactive.com/uploads/files/96543558631.pdfIn PDF document text
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/69284bd32238fa7d72d765c8fef4681f/91760048058.pdfIn PDF document text
- https://doctorchina168.com/upload/files/35113285439.pdfIn PDF document text
- http://investin-khj.ir/ckfinder/userfiles/files/xobelir.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=oxford+picture+dictionary+english+sindhi+pdfPDF link annotation
- 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_off000136a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136A6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014ebd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EBD | 11240 bytes |
SHA-256: 33d05a02f2574805018779752faa313cd0e800e4283310e388d6f11378c39e3e |
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font_02_sfnt_off000168e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x168E1 | 22064 bytes |
SHA-256: 97fd2542af5ff67909efdbf120d129cfc2b5fe30017ac8c442deabfa3efdd485 |
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