MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to external sites, many hosted on compromised CMS platforms. The presence of 'utm_term' parameters suggests tracking or redirection, common in phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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 https://catamma.ru/uplcv?utm_term=breaking+bad+problem+dog+script PDF link annotation
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/0f465f160258a622c23b87e8bdcca50f/33401155602.pdfIn PDF document text
- http://ccsl.asia/files/59735602777.pdfIn PDF document text
- http://farashimirooz.com/files/65910808050.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/0nfnlp5anf8g2m58qa6744akg1/7507854086.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/fezijizagab.pdfIn PDF document text
- http://nt-module.ru/ckfinder/userfiles/files/zezonawen.pdfIn PDF document text
- http://camara.acessoainformacao.org/uploads/ckfinder/files/74892474807.pdfIn PDF document text
- http://plantessentialoil.com/upload/files/41915719919.pdfIn PDF document text
- https://lompatjauh.com/contents/files/zudufapijekitug.pdfIn PDF document text
- https://smshealthcareservices.com/ckfinder/userfiles/files/95764053434.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/161495172d729b---tesevugijusof.pdfIn PDF document text
- http://ekonopuntos.com/campannas/file/78157119430.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/1b4601fdac9a47eab08fae80a5062f29/61718991081.pdfIn PDF document text
- http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/wevabebonofesoruwuroninu.pdfIn PDF document text
- https://airshow-bg.com/file/lipadikobarulilejujimuj.pdfIn PDF document text
- http://wonderful-foods.net/userfiles/file/72118792646.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/matobikisadilupa.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/u5iq1vup7jo6eibh9nt44igmd2/zenomizuxejuxivuxekogate.pdfIn PDF document text
- https://nibrasimansch.com/userfiles/files/5389340781.pdfIn PDF document text
- http://dpnovelty.com/upload/files/57868729520.pdfIn PDF document text
- https://ctners.com/ckfinder/userfiles/files/49672946176.pdfIn PDF document text
- http://parvazyab.net/basefile/api203/files/mofasezewasavetiw.pdfIn PDF document text
- http://fertilityupdates.com/userfiles/files/72992619198.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000aff1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFF1 | 16284 bytes |
SHA-256: a14db2941a164a093a2fddd25d6790fd65cdd820d401ceadb4c348857ffc00e1 |
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font_01_sfnt_off0000d98e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD98E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f1a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A5 | 11140 bytes |
SHA-256: b16dac75726f270f0fc0d60cca79456ca1a8f7c246e8e103f9cf0e0f39b67e63 |
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