MALICIOUS
132
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users. It also features a large number of external URIs, many hosted on compromised CMS upload directories, suggesting a link farm designed to distribute malicious content or phish for information. The ClamAV detection further confirms its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4683
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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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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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://ketchas.ru/uplcv?utm_term=people+with+treacher+collins+syndrome PDF link annotation
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/9fvs9vbh75at37s5rfq6tq2130/gejab.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/com7mbl8432kdd4onlbu98krvn/44831541609.pdfIn PDF document text
- https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/05cb81b496d335e05842f7edbdc92934/24933083931.pdfIn PDF document text
- http://murzilka.biz/images/uploads/file/29580821352.pdfIn PDF document text
- http://tsutae-f.com/js/upload/files/20374924306.pdfIn PDF document text
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/a68eef8c27501072a3ba44463f56144c/xadeluxokuve.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c777fbf030a---88766970970.pdfIn PDF document text
- http://ffarchitettura.it/userfiles/files/gevuvuxob.pdfIn PDF document text
- https://an-professional.ru/img/files/file/47201692345.pdfIn PDF document text
- http://moscowballet.ru/userfiles/file/verowofebiguj.pdfIn PDF document text
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/52943a37c9b6bc9db15fbdf6a248bbe5/9281355594.pdfIn PDF document text
- https://munord.com/wp-content/plugins/super-forms/uploads/php/files/989cc9ea89b2ef1b1881c57aa1934d66/51393010599.pdfIn PDF document text
- http://zovsh.com/Uploadfiles/files/xewokipujorakukus.pdfIn PDF document text
- http://perilatomsk.ru/ckfinder/userfiles/files/61150257418.pdfIn PDF document text
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/41d45132a3f583d6a0f0388df4913cfd/83223399455.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a048c1011b8---55770200712.pdfIn PDF document text
- http://charolais-hessen.de/write/userfiles/file/tesalurasejevuvivokini.pdfIn PDF document text
- https://idealist.ro/userfiles/file/54268635761.pdfIn PDF document text
- http://giasuthienphuc.com/Images_upload/files/suwukijitutabeloteratevu.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161089751c10a6---34047360987.pdfIn PDF document text
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ac41d7918---22394417448.pdfIn PDF document text
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/20fbd49f57a289ed37c545566b1e632a/84892467465.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16087a7b1783e9---68816869785.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e232.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE232 | 17180 bytes |
SHA-256: 31754c2b82f8defee70c16e4cdf9441eedc9e9707efe5a9c45a69dc76999f88b |
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