Malicious PDF — malware analysis report

Static analysis result for SHA-256 e739798ec73d8e6f…

MALICIOUS

PDF

62.0 KB Created: 2021-07-03 16:41:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 017d230ec2a1801058119de87ecbafcd SHA-1: b499da92a0fc840079e17a8c4f9cc5b97c203a7e SHA-256: e739798ec73d8e6fe11b0fe29fbb79ddb4babbcd6fe05f03a7c77f95315e8a7f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's purpose is to act as a link farm, likely to distribute malicious content or facilitate phishing. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5358

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • 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://unique.global/wp-content/plugins/super-forms/uploads/php/files/22be07d31bfbbd3d2ac4d7034d60e77d/11315515167.pdf In PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1d074357f---zegagepewuse.pdfIn PDF document text
    • https://zanhotel.ro/beficientconsultingFiles/file/25374132383.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ac6ec270b---66652325304.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/ha73n2mbpcgc0ac3g29bslp004/53324884009.pdfIn PDF document text
    • http://travelport.pl/userfiles//file/fobidoruwojalena.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/2gtpbes3hu5bngearr3qcgjg9q/xugususasiwafozowozeme.pdfIn PDF document text
    • http://mea-travel.pl/userfiles/file/ramimedep.pdfIn PDF document text
    • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f2b7bf6d3---44997210255.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16084e2a6d3c9b---tefukibamizidunaxavumer.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/d5c9fam3s47nhh5hptcdmtl3j7/92550982136.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/2a59da4602fe7a47994f58bbefb03add/mijibekuneluwokupifuropij.pdfIn PDF document text
    • http://hudsonohiohighschoolclassof1980.net/clients/7/7d/7d4b1ad73701457990394555a34ab01f/File/56643383968.pdfIn PDF document text
    • https://taevlingar.se/images/pages/file/zokuloxobutowenevesowib.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5a2189835---43007313734.pdfIn PDF document text
    • http://temple.mo/userfiles/file/ravakuzanateriravojimaje.pdfIn PDF document text
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4eb34a323a---menidaxivewatedumixi.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdcc33c5eea---680207823.pdfIn PDF document text
    • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/d2nuqr1p01jknau56fh5rmfma0/9525130689.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16071b52c56163---zizuwelaketodosis.pdfIn PDF document text
    • http://youngshiny.com/userfiles/file/1624111719.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/24a0b6932caa7eab7364127b874eed13/57634172504.pdfIn PDF document text
    • https://partnyor.az/userfiles/file/rasuxaluzunis.pdfIn PDF document text
    • http://yoron.net/up/files/50793491147.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=the+giver+onlinePDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.