MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document contains a link farm pointing to compromised WordPress upload directories, suggesting an attempt to host malicious content. The presence of numerous external URIs and the overall structure indicate a phishing or malware distribution attempt, likely disguised as a student loan payment deferral notice.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/01815bcc6088fde5ee46be24733b014a/doxeduwagutugojuvavuvi.pdf In PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d59eb61781---86077180200.pdfIn PDF document text
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/514384330.pdfIn PDF document text
- http://martom24.pl/martom/userfiles/file/rizowanavopiroxifag.pdfIn PDF document text
- http://ciarajewellery.com/editor_upload/file/rokajetabapadoxanibawog.pdfIn PDF document text
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/q7vrj6lrjqealdem6klv2qrqme/nulep.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///webotiluzibox.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/991347cb7f609bbd84560f63971db7a8/48819599639.pdfIn PDF document text
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/c12844a67a1ca23719b67c49dfaf20b5/87735299195.pdfIn PDF document text
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/16088228e9f68e---47157613907.pdfIn PDF document text
- https://educhina.mn/editor/files/widexadivifaxaguzid.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/ed43a0c545c9b45d85b1063ca7288161/mafojegive.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/058e7274d477643228877c72ef4efe01/vufor.pdfIn PDF document text
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/207658738305965a498056581ad3bdee/mawukevixukozisawegokilar.pdfIn PDF document text
- https://aartipalette.com/userfiles/file/rawefamurita.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/43dfe3f1eb2bd7ef730a483ce7ebdded/begasogopu.pdfIn PDF document text
- http://abnicum.com/files/file/38714152021.pdfIn PDF document text
- http://hrudolf.com/userfiles/7749837137.pdfIn PDF document text
- http://cropscipublisher.com/files/upfiles/file/lifelumukaduzirividemiro.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609683c9d2221---35888907687.pdfIn PDF document text
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/160892eb813a8b---50965814503.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/k830ehooaq52m3vj6830f7tfq1/nonavuxuferinawavuduka.pdfIn PDF document text
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094955fee7db---16711938663.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a11992ffa---88751251863.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=student+loan+payment+deferredPDF 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_off000107fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012014.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12014 | 10688 bytes |
SHA-256: 3dd52cea2860ef23359788b351fede79d55a9a90eaa8ec02feea3595ce6af1f2 |
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font_02_sfnt_off000138a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138A6 | 18232 bytes |
SHA-256: 4818d9e9aec6f0a8163259ea656174b89ca7013bc4b8c81143bbab02efa30c8d |
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