Malicious PDF — malware analysis report

Static analysis result for SHA-256 b13247d70ee83494…

MALICIOUS

PDF

64.0 KB Created: 2021-07-13 15:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 1f4fd923c9d804d18f79be481220490f SHA-1: d8192ed12f9671a271dd73258b8720e3281960b3 SHA-256: b13247d70ee83494748af4181bcb2fcaeafc671c76a9ffbc171912cae82b9b9c
124 Risk Score

Malware Insights

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

The PDF file contains a link farm, directing users to multiple external URLs. Several of these URLs point to compromised WordPress sites, indicating a potential phishing or malware distribution scheme. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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://alternativecarrepair.com/userfiles/file/71718613311.pdf In PDF document text
    • https://geniodelweb.com/file/zeriborinorakufadofasinug.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608463933f967---44908720880.pdfIn PDF document text
    • http://tnslib.su/userfiles/files/lixodawogat.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/a4c1c546608c58df381caa7353b1047e/61659431375.pdfIn PDF document text
    • https://protrialse.eu/files/files/57929390557.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/56552554099.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079276512343---gujekufijexama.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bac38ebee94---94518654215.pdfIn PDF document text
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/4de573324ec673e5ab4c9e4f7c34a4b2/58224384047.pdfIn PDF document text
    • http://cck-brno.cz/ckfinder/userfiles/files/53323357319.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/7311927070.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/neweronepawiredokiwimu.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b16d727e7a7---vezosetowigatikuvikijerod.pdfIn PDF document text
    • http://canigrup.com/userfiles/file/49781119730.pdfIn PDF document text
    • http://ihdbd.org/upload/files/dikepa.pdfIn PDF document text
    • http://shadesvalleymounties1969.com/clients/868959/File/zopixatamiwe.pdfIn PDF document text
    • https://www.blondel-bois.fr/ckfinder/userfiles/files/49620263328.pdfIn PDF document text
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/f34922316c675db276b0f8d6bb7bd499/nukilozefifomemolufe.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/zeluxililapuwododewex.pdfIn PDF document text
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ed58268aa---fewup.pdfIn PDF document text
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bd66c9aef27---69951508703.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16091abd546b69---dugajel.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/f0aee832538eb1f31832dd297bde0471/80737387145.pdfIn PDF document text
    • http://fobosgrunt.ru/files/ckfinder/files/21067778886.pdfIn PDF document text
    • http://thongthien.vn/upload/files/sadowuluzosivorodirug.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=constitution+of+india+with+latest+amendments+pdfPDF link annotation

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