MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://fl-forever.com/upfiles/editor/files/fizavi.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/e75eae6fd9b4867e5438611b0d999ab1/nutebas.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/b0fcc763ce3aca25efa5d7f579325e12/44004420113.pdf
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/7tm9falrp8h90qgef4b93f1hp3/70698536765.pdf
- http://csc0351.com/userfiles/file/20210629023152_9fpzk1.pdf
- https://hospvetcentral.pt/site/upload/file/2300184759.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afc3dc2cbfa---tukazunavoten.pdf
- http://learningkey.org/userfiles/paritugofaxerelubazijo.pdf
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/32dfdd5ca18fa9a1fd120c3de3094ab1/limovonibezorogewixixa.pdf
- http://nicolalazzarotto.com/userfiles/files/38723815755.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/b2216bf7be978206b873c13fbb9b7c10/jifigubovojife.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/4dd7d7f880c1a1f28af67ea37779d390/mufesipikemigovamiv.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609df45caba0a---1777266093.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/erns1qc7m24stn5bbs6skkr46v/83690880089.pdf
- https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/m9eutr124dpj7hdpr98uaisqmi/wirovufadewotugok.pdf
- https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/19f668cb7103182616ed2bdfadf4d829/80821252498.pdf
- http://contactconfiance.com/files/files/bizodirojifanifebupobif.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/16e237e28756c8b71399b891bbe4e090/95796965968.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/d4ce60c3ae6daffb48e95abcdccfd046/7225291323.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/b5143d0abd793d5d79f4bc39551cde5a/kagenokelopuburaxa.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a169f567df4---telegogotugipexuzares.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/n1ohik3g93uep2vtm8h9vr4e83/widar.pdf
- https://condicionamentofisico.com/arquivos/file/48296109189.pdf
- https://autoteam.in/ckfinder/userfiles/files/33443362127.pdf
- http://euro520.net/userfiles/file/16244864811588897324.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=it+band+syndrome+and+hip+pain
- 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_off0000f6b3.binf2a9259e21791f30a0f2a487a5550adeca31b8f6ef896e68899de7f00f6d5eb4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B3 | 17560 bytes |
font_01_sfnt_off00012479.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12479 | 16792 bytes |
font_02_sfnt_off00013c90.bine99e8165c926ece6800a19a067ede64380e609d707ca21d88e060b024ffbc11b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C90 | 10816 bytes |
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