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. The PDF contains numerous links pointing to compromised WordPress sites, suggesting it's part of a link farm designed to manipulate search engine results or redirect users to malicious content. The presence of multiple external URIs and link farm heuristics supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://bd-sokolovska.eu/userfiles/file/48801926459.pdf In PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607064fc29e14---fewuvijidisenitonir.pdfIn PDF document text
- https://alianzatours.com/imagenes/file/menopufuvafuwan.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e35c8643c---bumegirafuwopigu.pdfIn PDF document text
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/e408d69c0707b0c6d874447fe3a40f05/tobosubalajatonorigagomuz.pdfIn PDF document text
- http://artospace.com/pics/file/61118552360.pdfIn PDF document text
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/a3742e4e68e81bd65cf38908df6bd301/22820852353.pdfIn PDF document text
- https://pathakpharma.in/singhania/downloads/file/69731173253.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160945b4e5be00---9878629999.pdfIn PDF document text
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16086fe5b2d8c7---gifadiraxomoratomilowa.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/2e30bbe3f2d3eea644be4cdd9f507ede/mokowatelomawodujiwopo.pdfIn PDF document text
- http://simonide.org/userfiles/file/bodozawefoj.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/23251786b346923bb54eba5a35a690e2/mokofele.pdfIn PDF document text
- http://pwr-tech.ru/userfiles/file/73647234391.pdfIn PDF document text
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/160814303ae072---jovuwunidarumidikixafajuj.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/0n6cp5let0df818gj8tvqlonrk/robikazinivagiduxibos.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160c4760b82c07---90639494721.pdfIn PDF document text
- http://bumsnab.ru/uploads/files/82697334776.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608e23fd1c7b4---7693353433.pdfIn PDF document text
- https://circolodelpistone.ch/userfiles/file/53762480006.pdfIn PDF document text
- http://stressmanagement-karriere.de/userfiles/file/vijularager.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f213024a30---79795261733.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8151f9ca3f---41256797732.pdfIn PDF document text
- https://churchofgodinjamaica.org/app/webroot/files/gojuxatano.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/djsb4juacfi47e1utl4red5ud3/55807450894.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/loberuwofuruzinijekevoj.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=riboflavin+is+one+of+thePDF 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_off0000f199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF199 | 16996 bytes |
SHA-256: 3a132497429696881bd250f37840776ad9724d10a1ec879c4f3fcf8071f055da |
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font_01_sfnt_off00011e09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E09 | 10460 bytes |
SHA-256: a6241bc63da025636ac03b632ce610c2c29d65a7fde4a86f4c153c23658dbaf7 |
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font_02_sfnt_off000135c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135C5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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