MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites. These links form a link farm, likely intended to redirect the user to phishing or malware hosting sites. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://ketchas.ru/uplcv?utm_term=send+notes+from+iphone+to+android
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095a4a168f8e---jasonobazaxiwizejizamolud.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e0462400c42ef66ba066c4557f5a3154/zutatijotuz.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160adaab00b0a6---31079750924.pdf
- http://csc028.com/userfiles/file/20210607222505_lmpzoe.pdf
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/ece3a97964107c432393d64237355485/zuvowumugewivi.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083928f6950d---63224200817.pdf
- https://bczenekar.hu/files/file/99411203540.pdf
- http://fairmonteast1969.com/clients/876766/File/27548797882.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f61e510f3c---jupuwopum.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16092362f52287---60435701693.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1607795117abfc---77570794226.pdf
- http://bvsaigonbinhduong.vn/uploads/files/43999637132.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16088cc51048f0---zuwavabajupus.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/bfedd261d18a762f68ce433cbea2d6f0/12457917744.pdf
- https://mecaniquekd.ca/upload/file/jekekupo.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1607975e63513d---jedorub.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e8df14ed7---kugofe.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/7087df62dd63e87ef8f1e05fa1bfd945/zedaropimunijaf.pdf
- http://ballstonfamilymedicine.com/clients/861402/File/97425425871.pdf
- https://octvads.site/js/ckfinder/userfiles/files/vanumonu.pdf
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/35611894739.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/1o6lr6mm81b88502ecqpuvhs17/92655598583.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6e36530a0---gizawigemedudemulevegose.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085217d45ae0---xawumubini.pdf
- 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_off0000ec51.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC51 | 16792 bytes |
font_01_sfnt_off00010468.bin97ee5f60bd264b07e61cf60b1d75b08c5fb522dd56acc973981c6d990a6bb772 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10468 | 10792 bytes |
font_02_sfnt_off00011d0a.bindbe2eff7edb556c137186b827a8095d2f740c9cec2e67b7a5e4d979b4556b2f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D0A | 16828 bytes |
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