MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URIs that point to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of multiple distinct hosts and the use of 'utm_term' parameters suggest an attempt to obscure the true destination and potentially leverage SEO tactics for malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9742
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://nomylo.ru/uplcv?utm_term=comedic+monologues+from+plays+for+teenage+females PDF link annotation
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b33e8cd8f7c---lotogajadimodujo.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/b9e6aa42720b8b6634f5e73df8652ca9/fixolagafamexuzilo.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/98r6njkkputul61c2d45k3s151/9405340058.pdfIn PDF document text
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/at1efue0pfe897jgivicsquqn9/50498174019.pdfIn PDF document text
- http://cdhsalumni.com/clients/28864/File/zuvafumaxixupujewaxuj.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/0ba6e6af061071cdafde53a085afa80d/fuwomikikipugaf.pdfIn PDF document text
- http://agendaalzheimer.org/files/galeria/files/jujisidowolexulaf.pdfIn PDF document text
- http://alumcity.ru/userfiles/file/93755842992.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160809882afbaa---dosawukasup.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079e6efd741b---zosititubevesu.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/cc02203574c562a08fc82651be055dd2/83527047595.pdfIn PDF document text
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/du1pnuhh7ljv17lcrtluussd4d/puwug.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/lakeje.pdfIn PDF document text
- http://porpora.info/imagenes/imagenes_contenidos///lakawawuvoxe.pdfIn PDF document text
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/2d81f3b324827be85695d4c1277076f9/97082725976.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/ecfab3c2224ddf8223296b6a57f8e0c2/xodim.pdfIn PDF document text
- https://arichaindia.com/userfiles/file/vakavali.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b543b3e01e0---40701436467.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/1d83be4c8590a2f4050ae5f4f32f69ec/volaledinadokukupire.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a659372a92d---13110589008.pdfIn PDF document text
- https://castilloexterior.org/ckfinder/userfiles/files/pakupu.pdfIn PDF document text
- http://longthinhphat.net/uploads/files/67663339732.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160702c9bd9913---22971707331.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16093bb50a8483---49565480169.pdfIn PDF document text
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/1db80a6168e627a21b7a9d420e0dd8d8/12046848653.pdfIn PDF document text
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/ga2cvtlhvf08qsnc1be3c4rvrg/92061619062.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_off00026759.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x26759 | 17884 bytes |
SHA-256: 2b792da6a906d23a724ee56b8aff5caf5aac1252585e1423e6eb6e1406ab59dd |
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font_01_sfnt_off000295db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x295DB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0002adf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2ADF2 | 11208 bytes |
SHA-256: 54c151ab9c5a6c8cad978b55b068b381c86004dd33f870fd91c469678c9cbe9d |
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