MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites. The presence of a 'download button' lure further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbffe5d807---gifokosegikalomek.pdf
- http://gesundezellen.com/neu/userfiles/file/51955090417.pdf
- https://peperita.it/writable/public/userfiles/file/jazanusinafajedurinutux.pdf
- http://studiopol.it/userfiles/files/letek.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161401904287d0---tezemunelofalime.pdf
- http://terralis.eu/catalogue_dynamique/file/80895007493.pdf
- https://associazionemusicaviva.it/uploads/file/runifexagoluzipotekod.pdf
- https://abyway.lv/images/ck_images/files/91643752782.pdf
- https://zhbiotech.com/CKEdit/upload/files/19549668159.pdf
- http://studioprogettoarchitettura.eu/userfiles/files/kenufirunumik.pdf
- https://abogadosaccidentealicante.centralcms.cloud/galeria/files/kofixajofof.pdf
- http://hibertek.com/image/files/20210913_004722.pdf
- https://vanchuyenduongsat.vn/upload/files/pivozonupowid.pdf
- https://nyig.com/files/file/nosojomotiwinedosazosuxe.pdf
- http://sergeisurzhin.ru/ckfinder/userfiles/files/gumumano.pdf
- http://www.pethouse.es/ckfinder/userfiles/files/22227712964.pdf
- http://architettosbaffo.com/userfiles/files/5613153735.pdf
- http://satisfytech.com/ck/upload/files/93133102833.pdf
- http://ydtmuhendislik.com/ckfinder/userfiles/files/rujegapakizeserofaliv.pdf
- https://audit-advisers.com/userfiles/file/xadudufe.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614105c2b8684---gexoji.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/e81d3e0f38cb84bd1f4409c35559b8b2/zarugonisamigijaxininakoz.pdf
- https://yaslibakicisi.net/userfiles/file/sanizelazemepefodapa.pdf
- http://peaceinsrilanka.lk/userfiles/file/47689839125.pdf
- http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kawivaravamukijeferelav.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=window+activate+key+8.1
- 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_off0000ddc7.binc860c566444b4836ca675236b02942f3dae53d00613cd304b23e9341a9462682 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDC7 | 10728 bytes |
font_01_sfnt_off0000f6ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6AD | 16792 bytes |
font_02_sfnt_off00010ebf.bin71fee0ecbee701ba7cc860ad09145b53d165a80083f30f2e6d534c4051d8af27 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EBF | 17632 bytes |
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