MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. The presence of multiple links pointing to compromised WordPress upload directories and disposable hosting suggests a link farm designed to distribute malware or redirect users to phishing sites. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/fe362568c27130299c35f776f68b6d8c/88931807329.pdf
- http://altaprecision.com/userfiles/file/midigonawaruxo.pdf
- http://www.irrv.org/uploads/files/gonesiwagutedaraguwizaxek.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/d54b8eab804a0876255c7235d08a35f1/jinagamanitilaf.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16079741cc3dc3---19601733215.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/0bbc36b1c6f459fdf928260a829401cd/95658600410.pdf
- https://textolinguisticsolutions.com/upload/editor/file/76297283808.pdf
- http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/55495548970.pdf
- http://tscyw.net/userfiles/file/20210624135503_yctz4j.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9080c67648---83292656923.pdf
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/be52da7a1445f2f1b5f1c4fd0508af59/jilotusejulul.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607db55cbdcaa---safunovuzeduzuxafixinuxu.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16078d55098515---lanofivipodinoz.pdf
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/bjb8m61pc3t9do1kbgn4c7oq37/91864789481.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/4t7sjivd6bnt6q7jaa1c252q12/95644290358.pdf
- http://iaestedresden.de/userfiles/file/95358809849.pdf
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b97214821ee---dagunotovivusojogotomuki.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16089333942ede---47443913383.pdf
- http://provia-events.de/pics/fotos/1/file/68630146455.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1ceea027a---31292558078.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d075932453---58514852877.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160707bb768857---jajiwetaridiku.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086ccab3a48f---46282660647.pdf
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/020abfa0144b59c8dc543a6122bf8b41/64701974771.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a88ead1c50d---94249086695.pdf
- http://siembra.me/uploads/files/rikudorewitutubagojogole.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=drinks+made+with+coconut+rum
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f215.bind718e0194ef6c76ef1e3cabc5508697615dd195dd34aab15c6bef611c499e199 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF215 | 18164 bytes |
font_01_sfnt_off000120fa.bin36b7dc6b2189e805839eb87d477fb4ce11cd00302002a55728b41dc07133f33c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120FA | 10868 bytes |
font_02_sfnt_off000139f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139F5 | 16792 bytes |
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