MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution lure. The embedded URLs, such as the one hosted on amkboiler.com, are likely part of this malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/49vj3bvnvhiivap26kgjij8273/dugupezogininokuvir.pdf In PDF document text
- http://pinxedien.net/upload/files/82165525362.pdfIn PDF document text
- http://webbuilders.com/files/file/bawazin.pdfIn PDF document text
- http://chayka-svg.ru/files/pudijo.pdfIn PDF document text
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/b3c35f1bdc1fcbcc56a58965a03ceef1/42782590269.pdfIn PDF document text
- http://chongthamnguoc.vn/img/files/30770490687.pdfIn PDF document text
- https://quangcaowebsite.vn/uploads/files/15894075713.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/19969973713.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ja2v9tohk8mog27fusldeh9063/newexulevigimol.pdfIn PDF document text
- https://praktijk.zorglink.nl/ckfinder/userfiles/files/dimixamufidumalur.pdfIn PDF document text
- http://praguetransfer.com/files/file/27585068758.pdfIn PDF document text
- http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/87040316245.pdfIn PDF document text
- http://oticonshop.com/ckfinder/userfiles/files/56408343213.pdfIn PDF document text
- https://vinamex.info/uploads/news_file/41751159390.pdfIn PDF document text
- http://ghettaetamionarchitetti.it/userfiles/files/bobetupidabe.pdfIn PDF document text
- https://amzentransportationindustries.com/admin/imagetemp1/file/36164830267.pdfIn PDF document text
- http://sochi-polyana.com/ckfinder/userfiles/files/35481230504.pdfIn PDF document text
- http://etnorom.hu/pictures/6314699677.pdfIn PDF document text
- http://myarrahnu.com/mo_images/files/nilivevabasobagitepapid.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/wiverewo.pdfIn PDF document text
- http://gsprojekt.eu/userfiles/files/88249159792.pdfIn PDF document text
- https://jyapa.com/jhuoyue/uploadfiles/somebodasumufaxeda.pdfIn PDF document text
- http://skrn.cz/pic/file/godemux.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/13514929934.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=portal+online+365PDF 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_off0000dabd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDABD | 18200 bytes |
SHA-256: f3adcec51a530d76387e7fbcfd7d0af0e0935b42ee1b2f11b6464b4b632532d3 |
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font_01_sfnt_off00010a39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A39 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012250.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12250 | 10408 bytes |
SHA-256: 374823367d48deb7517e46199be73e5464d95ef498a41db7df51dd9cc5168ecd |
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