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 identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while numerous, do not clearly indicate a specific payload or exploit, leading to an unknown family classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://aihyang.com/userfiles/file/xitofi.pdf In PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bac24d8495---48476260338.pdfIn PDF document text
- https://monyetjoget.com/contents//files/vokaratuxiwomowujojuwelep.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/0c2fda60f90176fbdc84d90185365248/xamoderuzilogifubojidep.pdfIn PDF document text
- http://musikpark-live.de/userfiles/file/27374724150.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/f17eae221e86b86337c4a5c31a9c0c10/55767993555.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ffee16b816---9481658251.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a17e39b5084---kefivenorobomefodubava.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/ctcobo7h1srjsrc2smscjr3j03/piseterajifudirakumu.pdfIn PDF document text
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b1fc8adcd---pekiven.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607036afb5b5a---79935561617.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/7i7eajg5vie9tgms8nfdivprhg/40915668224.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/li9kb6acten3dkqubkjdi8rh66/64073150842.pdfIn PDF document text
- http://rialta.ie/userfiles/files/nutobodis.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160922a2254d32---nadifamiwuf.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e00d73642---goniliso.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/800447535609b87f40ae3f.pdfIn PDF document text
- http://hydrogears.com/survey/userfiles/files/kuziwugo.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/0bgb7k8rlg04b4als74q8mg6dh/riselobotifonegexaxexo.pdfIn PDF document text
- https://thuaphatlaihoanghuy.com/uploads/files/duxetixasatexevazat.pdfIn PDF document text
- https://zapcdn.space/web/img/podborky/files/84992863863.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e302fb017c---ximamemufijurenidutixifog.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/verabiloxibajejopuw.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/vet25hk2n2ht38j4fhpo617gb7/98056995715.pdfIn PDF document text
- http://nickels.design/ckfinder/userfiles/files/velanemalaxasob.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=the+american+homefront+during+ww2+worksheet+answersPDF 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_off0001373a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1373A | 16904 bytes |
SHA-256: c511bb6a28a9403724843635e45759cf92e3db266933f97652c9d71ec2369940 |
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font_01_sfnt_off0001633d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1633D | 11236 bytes |
SHA-256: bf33199c796b54af3846b81e2cf7b4191b7872f755c4362bf061865003fb4b83 |
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font_02_sfnt_off00017d58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17D58 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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