MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous URLs were extracted, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm or phishing lure. The PDF structure and embedded content, though heavily obfuscated, are consistent with malware delivery mechanisms.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://smidgel.ru/uplcv?utm_term=what+is+a+proper+adjective PDF link annotation
- http://tianfonmm.com/d/files/nexovozulin.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/1c4071e60de442ac612e6f93ff6e448b/66262936833.pdfIn PDF document text
- http://maudchristan.nl/ckfinder/userfiles/files/29403168200.pdfIn PDF document text
- https://bunyaminerdemir.com/resimler/files/detumaxavo.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613809a09fa5a---gefexedasonafimujekorudoj.pdfIn PDF document text
- http://kamnitikamini.si/upload/files/bofafowatuvakomubememimiz.pdfIn PDF document text
- https://jungleflightchiangmai.com/Uploads/files/77231172611.pdfIn PDF document text
- https://okinawa4d.com/contents/files/ropuwajuwavumasuv.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158134b5fba9---wepamutoxoj.pdfIn PDF document text
- http://husplaza.hu/editor_up/17706543351.pdfIn PDF document text
- http://sandiego.songhakbbq.com/uploads/files/kunawaruxuzokatobatowuwa.pdfIn PDF document text
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/81496c4aaa5bf3c0d0c1d3c50653900e/juvisotuponuj.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/e62877b277adecb07759548500d4cb37/banijakijibubobegu.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613923f3d51aa---muvisivolexunuxoredawigog.pdfIn PDF document text
- http://sevennews.com.br/ckfinder/userfiles/files/juzesalezigevura.pdfIn PDF document text
- https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/tojufiwivaparanopopek.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/7b9bab033d7badcfa01e15bb8054d229/pilagakolalil.pdfIn PDF document text
- http://bagliodeimille.it/userfiles/files/35762472400.pdfIn PDF document text
- https://delphin-bau.com/ckfinder/upload/files/dipowi.pdfIn PDF document text
- http://fortwashington.abwingsmd.com/uploads/files/30488932891.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_off0000af91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF91 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c7a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7A8 | 10652 bytes |
SHA-256: 2a579cf89c783b9fac57c337cc8be81ac17105a6b8590fa2c0a19be24f9abb8f |
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font_02_sfnt_off0000e035.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE035 | 17740 bytes |
SHA-256: 43164cee16a0caa4160020687471b39cea23305e6bdf072615d93b805799cb06 |
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