MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The PDF structure itself is also indicative of a link farm designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 https://medvor.ru/uplcv?utm_term=estructura+de+fosfolipidos+pdf PDF link annotation
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985d0d29777---83596294541.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e4b53f67d---dobuwiwoxomerovaxomima.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d7cf6dd532---54139092717.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bced89b8530---33223512445.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a773d8290b---nimapekogesiduxibawefide.pdfIn PDF document text
- http://bhs-class1957.com/clients/35434/File/3074314990.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/tnbcrbi14qrcj8ks9udcavn2p6/voratesufotofazid.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/70424793140.pdfIn PDF document text
- https://mysmartedu.com/uploadimages/files/sojevoxosazovovixenirefiw.pdfIn PDF document text
- http://ambcavallon.eu/userfiles/files/kunavovolagida.pdfIn PDF document text
- http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/57008756478.pdfIn PDF document text
- http://seabeachthailand.com/UserFiles/file/10003199728.pdfIn PDF document text
- http://4rrecycle.com/files/file/4859850366.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe0360a658---11256276470.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612aaa4f64c9f---31725838105.pdfIn PDF document text
- https://jordanadams.com/ckfinder/userfiles/files/memutekosu.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/2201ee535338341d8d3553af018e4d7a/nezejadenobuduzixef.pdfIn PDF document text
- http://mrmax.ca/clients/9797/File/29819154340.pdfIn PDF document text
- http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/17097162029.pdfIn PDF document text
- https://webupdate.ca/wp-content/plugins/super-forms/uploads/php/files/o24u27tmpt58n7ef1cak0cn5lk/lebimakitojetapizatej.pdfIn PDF document text
- http://85560891.com/upfolder/e/files/20210905230937.pdfIn PDF document text
- https://jkmart.net/FCKFiles/File/13401599567.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610cb758bb6d0---66145413060.pdfIn PDF document text
- https://dpt-mh.com/uploads/news/files/leluvonusubavinojomi.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c91e04aa7---sanimotitaforipizopowar.pdfIn PDF document text
- http://triatlonbizuterie.cz/sites/default/files/file/25760082024.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_off0000d626.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD626 | 10592 bytes |
SHA-256: 8ea6665d4251a09f45d58afb94bb7ce73a578d3b1c924f6538eab2d38a83110d |
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font_01_sfnt_off0000ee7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001068c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1068C | 18784 bytes |
SHA-256: bf4b9337373d92e39a2d5f498cc0a2d464900ce2aaa79b91d06992551f57c0c7 |
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