Malicious PDF — malware analysis report

Static analysis result for SHA-256 060709f1d93ffa1c…

MALICIOUS

PDF

124.5 KB Created: 2021-08-17 03:15:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: e5c82d1a2c810f6edb38846f532f7e16 SHA-1: 72bd537100dbfbe66c7ed8c3c4d64ec7f86b420f SHA-256: 060709f1d93ffa1cae454b8945419f5afd4a3ca3398b26af33632c698b5812a3
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF was flagged by multiple heuristics as a link farm and potentially malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous embedded URLs pointing to compromised websites, suggesting an attempt to lure users to malicious content. The ML classifier also indicated a high probability of maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7515

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 http://www.contectrade.hu/fckfiles/file/84362458259.pdf In PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e35e85da1---gigupijoluza.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/idru3sspf54mk87fnd211erhga/watedejenipufil.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/98dda3d2882108fb8386dcff12e66c5e/rokuxabokowagifinaruvev.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b29c9d94465---36519774377.pdfIn PDF document text
    • https://thefencedocumentary.com/adminfiles/file/13488297401.pdfIn PDF document text
    • http://campbellelectronics.com/uploads/mimopidirebopuwe.pdfIn PDF document text
    • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/f4rudrttu6bm309e17j3gchi44/95039663679.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/17fddb0f9459ccb6ecd1797f8c331608/xumovusonani.pdfIn PDF document text
    • http://socukorglutamatmentesfuszer.hu/ckfinder/userfiles/files/wumurared.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/lefigurimujimudesirulujel.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/kop8dr31h7fhljuaftbd080p04/10824307199.pdfIn PDF document text
    • https://pbpkrosno.com/fckfile/digoromijibi.pdfIn PDF document text
    • http://ondrejkocar.cz/img/file/15274108753.pdfIn PDF document text
    • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a84e2b7ef43---toralogolitufosadara.pdfIn PDF document text
    • https://www.asoriofrio.org/ckfinder/userfiles/files/93494469901.pdfIn PDF document text
    • https://smartmedia.ro/app/webroot/files/userfiles/files/dowafewijoxomufas.pdfIn PDF document text
    • http://www.pranabkumar.com/fckimages/file/goxarifipate.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/vraibt613aifvlrd96moqccas8/xapadonomotido.pdfIn PDF document text
    • http://uni-farm.pl/ckfinder/userfiles/files/98740894265.pdfIn PDF document text
    • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/2e7929f73ebae1c88ac8724e729c796f/rifukatenifalewel.pdfIn PDF document text
    • http://rubensova16.cz/files/file/weramelano.pdfIn PDF document text
    • https://kfmaccounting.com/webroot/img/content/files/zoworesixafutigokudore.pdfIn PDF document text
    • http://folientastaturen.pl/_data/file/31992158273.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=iodine+clock+reaction+lab+answers+cheggPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001abb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ABB6 10916 bytes
SHA-256: 40f620c6ff655589b13a67bcf5e1e8e21597e31b6f8de77104939116a9b650d7

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