MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDF files. This structure suggests a phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to a phishing or trojan delivery scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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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 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 http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/5de5be8e96c71cea19bca456fa23be22/55970254820.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/61fb11be3d64bb0b51a64d9d1b67d10d/gapemunonifirimilonawadak.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070868934057---74611844769.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/88ba29d7c2690e405f08f8090865b66c/97105386601.pdf
- http://pttaccounting.com/userfiles/files/12896146977.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/53nj16nc0apcpqkeheou26qinv/dowodefapipewekojades.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607861f2a299b---todujafidike.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/6f4073f6051c5993ca13cec6b6a5a669/62610584625.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ad2c139e0d9---bagimil.pdf
- https://bursakaynak.com/userfiles/file/82725890398.pdf
- https://watfordfairtrade.org/app/webroot/img/files/dotarazogiki.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/g7dkqcl83c7hg85g9082v403l5/fewodazogu.pdf
- http://csc0535.com/userfiles/file/20210715191159_5l6bfi.pdf
- https://108pizza.pl/uploads/userfiles/files/xesug.pdf
- https://fullhousetourism.com/UploadFiles/file/20210522144533125.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/b8a3103ef4a48bf1aa79f26d91c5c654/76860874299.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160ddc8d2b194a---96082743514.pdf
- https://anfauglir.com/images/file/logesumexovegiliw.pdf
- http://stardentalcare.org/userfiles/file/wizibafitodiruzaw.pdf
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16079489f6c907---36016323043.pdf
- http://adabaskimerkezi.com/upload/file/37480335178.pdf
- http://scro.ru/pic/file/50786588843.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=give+in+nyt+crossword
- 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_off0000ea7d.bin85dbb6cbb3dbeec9d418486c46601ea9d649d0f129453a15afeb8fbba59592dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA7D | 17524 bytes |
font_01_sfnt_off00011811.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11811 | 16792 bytes |
font_02_sfnt_off00013028.bin7ca1169d31ed0724a54ecee82e5641af7a21b3bffa518aa10f5d9895e7f8552c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13028 | 10460 bytes |
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