Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89a08b07b494692…

MALICIOUS

PDF

63.8 KB Created: 2021-07-16 17:46:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: a98e4f76226bf285abb75b0482ad611c SHA-1: 37a335713067685aef80e18531e2a1a49b9b7161 SHA-256: e89a08b07b4946921be50e0ce1e779b0a00a6e88df61b6eb45db2c169b91839b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a link farm, with numerous URLs pointing to potentially compromised CMS upload storage. The heuristic findings indicate a pattern of hosting malicious PDFs on disposable or compromised domains, likely intended to trick users into downloading further malware. No scripts were extracted, but the overall structure suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3605

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://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c42a50527c8---dumejukisomavubewedizefu.pdf In PDF document text
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c988ddbeb0---kebapusurumitozegemux.pdfIn PDF document text
    • https://clickkedai.com/userfiles/file/bixuvaxekofew.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d0abbbc3238---86646477609.pdfIn PDF document text
    • http://3xlove.com/uploadfile/file/sasapulusuzusugatava.pdfIn PDF document text
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/2c9e4ccfa8321ea8cef8733c3c599693/tevalim.pdfIn PDF document text
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/dc7c9fe067a5b93dc7cae136fce42385/mogozajulaguxote.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160d9376f1bbff---vukow.pdfIn PDF document text
    • http://elisa5888.com/shopadmin/upload/files/35173158672.pdfIn PDF document text
    • https://karapinarinsaat.net/userfiles/upload/file/91696403127.pdfIn PDF document text
    • http://ototavandosemesi.com/resimler/file/milexo.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afa0efab448---82083794899.pdfIn PDF document text
    • http://softwarefactory.nl/images/file/49874100448.pdfIn PDF document text
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/044cfc1ded8ef9cc555bc32ae03ab871/84984566115.pdfIn PDF document text
    • http://sportsgarten.com/editorData/file/zoxagumiwejorepiwirolozo.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ece6a8b2253---91810121487.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/5418030e7cad7fd0f14282d8ebeb5ce6/vufivog.pdfIn PDF document text
    • https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/qj76hapm8pg9klhalimcmp7gfh/nibutoneledisudul.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/66706975931.pdfIn PDF document text
    • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607084a5e1e90---24950545879.pdfIn PDF document text
    • http://bendhorseride.com/userfiles/file/vuvitajafidapejikano.pdfIn PDF document text
    • http://gatewayhotelbangkok.com/upfile_hotel/files/foruxu.pdfIn PDF document text
    • https://sportnazona.bg/f/uploads/files/tobuzixaguk.pdfIn PDF document text
    • http://aqcons.vn/upload/files/vozomezuxopekumaxobum.pdfIn PDF document text
    • https://inprovit.com/ckfinder/userfiles/files/49839290142.pdfIn PDF document text
    • http://goergenpainting.com/clients/0/0d/0d1038892961fdbf96b6a8e7e8daca8f/File/95770803969.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609dee2806547---92133992266.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=poverty+as+a+challenge+class+9+pdf+solutionsPDF link annotation

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