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 ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified the PDF as a link farm pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution lure. The presence of numerous unknown URLs hosted on these compromised sites reinforces this assessment.
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 http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766f6e8e622---novivoforutosebige.pdf In PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160904a133fb80---56778175757.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c89b5a6f7---12132464499.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ac17ab77099---tasepapumulolikuribaf.pdfIn PDF document text
- https://ikuseikyokai.jp/ckmedia//files/52987325927.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/da698ce25e59c0965a8fd26f5e4f355c/navinukipuvarovabapobudib.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/knpd7u05200heo779shjaopd12/98869385639.pdfIn PDF document text
- http://www.biotanika.pl/upload/file/96843064597.pdfIn PDF document text
- https://lienlacanien.com/img_pages/file/rufofatomuwo.pdfIn PDF document text
- http://beloezoloto.ru/userfiles/file/dujevidotoli.pdfIn PDF document text
- http://alpha-th.com/userfiles/file/67817140401.pdfIn PDF document text
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/734f06332e092e0e5bdf6c7692ec0d52/radorunexoxodaj.pdfIn PDF document text
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/a9uehrouc20knuqjpdqv19bqtd/xepuka.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/sutalomofunirupaloros.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/56887807604.pdfIn PDF document text
- http://1careglobal.com/upload/files/62836664712.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607da17401362---11356710932.pdfIn PDF document text
- http://www.asslar.de/downloads/5513934058.pdfIn PDF document text
- https://licorne-hotel-restaurant.com/userfiles/file/fiwigovusakawol.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16089cbf0380ba---kogutinazozutitemovot.pdfIn PDF document text
- http://agendaalzheimer.org/files/galeria/files/12631724399.pdfIn PDF document text
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/b25f40b5ba25fca80ef0367da7325cd8/musidozafidumifovirivu.pdfIn PDF document text
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b50cd35e7d---70758605718.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=time+series+forecasting+stataPDF 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_off0000ee1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE1B | 10596 bytes |
SHA-256: 5c6fbfe2a41419a17de036c8420a3a2dd4fe112c201aad771c2061c67d1a2c68 |
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font_01_sfnt_off00010656.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10656 | 17832 bytes |
SHA-256: 0e39f95560dc8f52fcf61f12a7fc64261c6c38dc26031acffded76b1860d5d4b |
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font_02_sfnt_off0001357f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1357F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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