MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users. ClamAV detection and ML classification strongly suggest malicious intent, likely phishing or malware delivery. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports the conclusion that this document is part of a campaign to drive traffic to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://crysiq.ru/uplcv?utm_term=answers+for+macroeconomics PDF link annotation
- http://tdbakademi.org/userfiles/files/guxefibodubuwixibanofowo.pdfIn PDF document text
- http://polaryachtmanufactory.com/res/wysiwyg/file/woniwubifosogizami.pdfIn PDF document text
- https://ngaa.org.au/application/third_party/ckfinder/userfiles/files/valanulumum.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161495e44b436f---37005454908.pdfIn PDF document text
- http://kondicionery-lubertsy.ru/upload_picture/file/buwibazozavovafiwuka.pdfIn PDF document text
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134fadb176c4---nabotejexafujidom.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/jisatupi.pdfIn PDF document text
- http://kelsenator.com/userimages/negexajatunoretozitugef.pdfIn PDF document text
- https://inprovitperu.com/ckfinder/userfiles/files/35240460287.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/161573affa59b2---33585163045.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16135f4da1f4b1---fatosexuzosodupozif.pdfIn PDF document text
- http://idcla.net/upload/files/6056138048.pdfIn PDF document text
- http://banquat.com/userfiles/files/6776966282.pdfIn PDF document text
- http://veterina-naslunci.cz/userfiles/file/94578759335.pdfIn PDF document text
- http://www.s4b.nl/upload/files/12018111729.pdfIn PDF document text
- http://obedovice.cz/userfiles/file/jotufu.pdfIn PDF document text
- http://esangsok.com/upfile/files/2917041158.pdfIn PDF document text
- http://accapierre.it/userfiles/files/61402950693.pdfIn PDF document text
- http://dachastyle.com/userfiles/file/xifufokovajigasop.pdfIn PDF document text
- http://wingmanplanningdemo.com/userfiles/files/41494960391.pdfIn PDF document text
- http://esangsok.com/upfile/files/tilux.pdfIn PDF document text
- https://podgoricki-klub.me/userfiles/file/72686322945.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/51a4d0d8cad67d26f03ca3af2905d2e1/3186144167.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614396331886e---82352935045.pdfIn PDF document text
- http://creative-format.com/upload/editor/files/kiduj.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16153efbc4314b---bazutegizufe.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_off0000d445.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD445 | 10420 bytes |
SHA-256: 424933ac9a04b313b91c0ea399f8f3c41404d2a16b30a242e1412c657d34938d |
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font_01_sfnt_off0000ebf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF3 | 18384 bytes |
SHA-256: 54cfadb4f0e9d226c069d5d8d587ef9bbc04431f8722e5e6778c492b206a9593 |
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font_02_sfnt_off00011baf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BAF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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