MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://pistant.ru/uplcv?utm_term=biology+class+12+handwritten+notes PDF link annotation
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/beec1140b9a0609e43dddfcf97441cf5/baserexinoz.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2e7c731dc---83747815247.pdfIn PDF document text
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/219i3os59lr0ahb04v1gbca55b/gakobosimamikowararagu.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/8ur9s6c31d5ladgdmeh4dtk2i4/87652716856.pdfIn PDF document text
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/da382e1d9dadab2a5e872d62cf8901b6/pakaraderudow.pdfIn PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba7d0351fa---10544646205.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608d900ef37b6---54979372932.pdfIn PDF document text
- https://ka-base.no/images_content/file/79641961056.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608214210bfd4---gotawonekojiju.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/a9ecc0ad60ad1347719a2119bdbd0499/mokexibufuxuzozowezubo.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160947a1d950ec---wisetixeroxizox.pdfIn PDF document text
- https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/kozobew.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/60t5cbsv13db4b73pqfa1nq5c5/65494466450.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/a64bcad7f397ad46557a2c96ef0030c4/11465889784.pdfIn PDF document text
- http://big-blue-bus.com/pics/fotos/1/file/28219992220.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE85 | 5628 bytes |
SHA-256: 522928902f83a329ae4ff2fe96b412143be50755ec0256aa82a2a8aa7f8b5bc4 |
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font_01_sfnt_off000101c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C5 | 11204 bytes |
SHA-256: fad708bd68c7c0b590807d0a044b3a8b484cd24a60103df9fe198a752f9324bf |
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