MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to various compromised or disposable hosting sites, likely for phishing or malware distribution. The presence of URLs such as 'http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16072f82725518---vugegi.pdf' suggests an attempt to exploit vulnerabilities or deliver malicious content through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://marcth.pl/media/fck/file/86548740320.pdf
- http://busankid.com/webfiles/board/file///6665402282.pdf
- http://szkolaprzybranowo.pl/ckfinder/userfiles/files/rarik.pdf
- https://stopserv.ru/files/file/tajapuvopu.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082017e150f2---65267422360.pdf
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6ba7e5b33---56014000320.pdf
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ff5bb6fca---bazurejutumajirub.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b29da5d39fb---bepopotumak.pdf
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d306ee285---pezinares.pdf
- http://yuha.be/_files/file/kilexulivo.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb47569dcc---xezitototelol.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5d79cdb0d---zejodininelivideta.pdf
- http://telmeed.com/web/ckfinder/userfiles/files/64797805390.pdf
- https://isosklo.cz./uploads/50927222963.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16072f82725518---vugegi.pdf
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/7856f5c0a788abc163b19e634ff2b10b/tomixajekivabaku.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091fd519f099---jetorerapajinexadagetat.pdf
- https://olympicwroclaw.pl/zdjecia/fck/file/rapataliwiziw.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075e827aa6d8---zesuziwijowaluwuvu.pdf
- http://conomiya.com/images/uploadedimages/file/52589903011.pdf
- http://brenno-tojestto.pl/userfiles/file/togano.pdf
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/0i31l6ujj5f04jb5fp9g2ain57/jazikok.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=pdf+to+word+document+converter
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083adc2947b4---3141969266.pdf
- 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_off0000c96a.bind154c75261b4ab2fb013a6f7e280b357f64bce65668760f9a9d1effd3b04a9b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC96A | 10420 bytes |
font_01_sfnt_off0000e115.bin0a21e4cd6987c5152de3477dc8745702b59a61521bf64be6d829f30bfa9aea09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE115 | 16488 bytes |
font_02_sfnt_off00010bf6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BF6 | 16792 bytes |
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