MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The numerous external URIs, many pointing to compromised WordPress upload directories, suggest a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.
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 http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac371fc4ec1---85629671524.pdf
- https://ddshower.com/ckfinder/userfiles/files/35868013797.pdf
- https://heatingboiler.ca/fck_upload/file/ledajesu.pdf
- http://harasim.cz/uploaded/files/83382542524.pdf
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/4e19fbedda9104206cd670205c4790a3/dufiwifid.pdf
- https://barrierball.cl/ckfinder/userfiles/files/80324369134.pdf
- http://breakevenpoint.pl/uploads/editor/file/5389401011.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/132395f5c86a3eedbf1e55a5c3995fdf/savuzo.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/982d3bac1a290481d0ac4ed877cf6d28/bitagakerorogone.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/uipfhipj8tmf2sandnvu2qrv5s/zeponikaxojojutisebijeru.pdf
- http://changju-hotel.com/CKEdit/upload/files/41208427494.pdf
- http://musclecar-taps.com/js/upload/files/jozorejixiguzeres.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/2ec45c7e0eafeaf23b61cb80ec1e890a/8970454896.pdf
- http://plusk-car.com/js/upload/files/17336460901.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3734a9954---karikokali.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a596ee1fc88---82767947164.pdf
- http://brandweeramsterdamamstellanden.nl/userfiles/file/wekiz.pdf
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160764b20a1605---ruwovuketusor.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a43a4944e80---38027592986.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/6mr2n8p7bqkidmcahdlkskr076/pafumuxuvizukiz.pdf
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/00a93c9dcaea34ed8d66de6facaec9af/20639868133.pdf
- http://zrdb-drogbud.pl/Upload/file/xaweliba.pdf
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/gvbhbrbnaau28h8v39h7r7v2m6/64009356176.pdf
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/61d96a77a31b5081d8932a4ee4631875/rexuzozaxeripixakavinox.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16089a7ea9e9a2---wifesesupibeso.pdf
- https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/461b3ed4378b5962034dbc5efd60de0a/wugituvogixavefamu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=seeing+black+birds+meaning
- 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_off0000fe62.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE62 | 16792 bytes |
font_01_sfnt_off00011679.binaf5339917906975f75fbc68674c2fde10176c5e948e60be8d3502489cecf73eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11679 | 10804 bytes |
font_02_sfnt_off00012f18.binc1f0b14b2c62c4641dd7944b1fabc9cee0885e98e2c1469502a7017006cd08f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F18 | 17020 bytes |
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