PDF malware analysis — malicious · fcff40d9ec86d1b8

MALICIOUS

PDF

251.7 KB Created: 2021-08-15 05:17:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22

MD5: 1cb17725eae06c475ff67bc0f6407239 SHA-1: 0602729ef9b1256dd3b9804fffd25761e4fb8621 SHA-256: fcff40d9ec86d1b810dd0837eadfc0f570538e97f15f86328214eccb3c575e5a

132 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1566.001 Spearphishing Attachment

The sample is a PDF containing embedded JavaScript and multiple external links. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing. The embedded JavaScript likely facilitates the redirection or download of further malicious content, while the numerous links hosted on compromised WordPress sites serve as a lure for users to download additional malicious files.

Machine Learning

Nyx PDF Classifier malicious score 0.9565

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF 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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://pixomot.ru/uplcv?utm_term=node.js+design+patterns+amazon PDF link annotation
- http://kodemari.info/data/files/20699071009.pdfIn PDF document text
- http://limeitec.com/upfiles/editor/files/93230930124.pdfIn PDF document text
- http://etcad.net/np/upfile/file/seditufojar.pdfIn PDF document text
- http://mywymc.com/userfiles/file/dujodus.pdfIn PDF document text
- https://juvelyrikoscentras.lt/Files/file/13420948144.pdfIn PDF document text
- https://lordpin.com/calisma2/files/uploads/38129006592.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608178e29a4d0---kanikipegoroxuguka.pdfIn PDF document text
- http://theponghop.com/upload/files/gesirekisufudavomalujir.pdfIn PDF document text
- http://darienhigh69.com/clients/866565/File/18614531314.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/5e57e5vkkuccrg7roa680lv96b/solivelafabe.pdfIn PDF document text
- https://reaga.net/js/ckfinder/userfiles/files/42044687653.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160967c94c4b46---gufizutufalemugo.pdfIn PDF document text
- http://mondoacquapiscine.com/userfiles/files/wokulifaniwa.pdfIn PDF document text
- https://hospvetcentral.pt/site/upload/file/niraluzexasi.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092167d8e5d3---25308264087.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3375729d58---34570180469.pdfIn PDF document text
- http://chieusangducphat.com/uploads/userfiles/file/nozudut.pdfIn PDF document text

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