MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, but the presence of multiple external URIs and the overall detection profile indicate a phishing or redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.8663
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://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/ik4pinadl1shnio5tm9tka8g7b/12329497258.pdf In PDF document text
- https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/edbc4c800805f91cba2b12046f8d37e8/94362603983.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/9e7ba802ca1ebebcae8df99161b20b9d/79010121577.pdfIn PDF document text
- http://praconsulgroup.ru/pict/file/zibenepawagomupin.pdfIn PDF document text
- http://huijingweb.com/upload_fck/file/2021-7-7/20210707203342990196.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1cfdfb19ce---50837959332.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/82d28918b2eaea0ffdd7d86dbd641444/kagemibitagunururego.pdfIn PDF document text
- https://cowichanmusicfestival.com/userfiles/file/77528508503.pdfIn PDF document text
- https://permargi.com/files/galeria/files/53490614325.pdfIn PDF document text
- https://miaousland.fr/ckfinder/userfiles/files/fajefawesupalamuli.pdfIn PDF document text
- http://come2menorca.com/images/file/pobun.pdfIn PDF document text
- http://arcos-eff.it/userfiles/files/jemaxigapegazomojiboxig.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ae05864f0---nebizemaxuneweneroma.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbc9ca922d---21139914767.pdfIn PDF document text
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/mo3fnobpp1phddeqsip3s6li1u/78201949780.pdfIn PDF document text
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b988335d4b6---49962687972.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16086e35fa3c3d---mamifasozefeposixovego.pdfIn PDF document text
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/osjik5dhgdombu9pusrlj9ef3p/pasime.pdfIn PDF document text
- https://arket.io/wp-content/plugins/super-forms/uploads/php/files/h0sscruv22d3imrfv0qkjalgp4/58265501386.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607de2c089b86---79688109825.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850bfdb422a---89010973956.pdfIn PDF document text
- http://ledins.lv/cms/file/85899818323.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ed3018abcd---69399236115.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/772ae8f2fa779ab260c834677f40a84f/zinexit.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+turn+a+money+order+back+into+cashPDF link annotation
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/6318bee0254779474f07d576135180ee/8137299062.pdfIn 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_off00011483.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11483 | 17140 bytes |
SHA-256: 3ef50a62cf2e3d16accafd5d0d419ff67ceca9428df4ebdf59edd2cb61ba6579 |
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font_01_sfnt_off00014104.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14104 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001591b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1591B | 11112 bytes |
SHA-256: 90e692de01d9f7b183d9b8f13c58a6002b2e0f316616d3afc9e4bf1ece71391e |
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