Malicious PDF — malware analysis report

Static analysis result for SHA-256 f67b6fa08352099d…

MALICIOUS

PDF

46.4 KB Created: 2021-06-14 20:23:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f38466c8eec21aafdea879838f128988 SHA-1: 19e125983bc71ea1ad3b5877c28c6c2c86a8ee74 SHA-256: f67b6fa08352099d54e21713d9fb0c5b258bd50db5adfcb29c63498f34a74573
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple domains, many of which appear to be compromised WordPress sites or disposable hosting. The embedded URLs suggest a lure for downloading software, potentially leading to further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7248

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://wastran.ru/uplcv?utm_term=commandos+behind+enemy+lines+windows+10+download PDF link annotation
    • https://service-panev.com/userfiles/lotokezamuzubifizoman.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9a6e4468817466eb4a33740a370d619c/zamumigapepodamifale.pdfIn PDF document text
    • http://weberstellen.ch/userfiles/file/35488452110.pdfIn PDF document text
    • http://karmand24.ir/basefile/ehotel724ir/files/mexalemal.pdfIn PDF document text
    • http://digitalpolicycouncil.com/imagenes/file/48434770702.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/e59f89702be7048731a05f1f81944288/44963327643.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f199a5251f---bepezusureleri.pdfIn PDF document text
    • http://teplospectr.ru/images/files/8734514839.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609479263104e---64670422445.pdfIn PDF document text
    • https://stef-nancy.fr/upload/document/sukubova.pdfIn PDF document text
    • https://ideylia.fr/uploads/file/kafetiduguregorididafen.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/21edf16974bef3fc9a8373c77d2e179e/pulenikazedodopaduganomi.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc011df160---88446321375.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/7nesbmvt55tifmafise9buuio1/85449476412.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160891ba332d3a---40382459309.pdfIn PDF document text
    • https://okazdedziecko.pl/_files/Media/file/79673255607.pdfIn PDF document text
    • http://emilygrilltogo.com/uploads/files/44645071377.pdfIn PDF document text

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