Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddbdb182dfb3cf7…

MALICIOUS

PDF

62.3 KB Created: 2021-09-24 06:56:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 48b38b9966e9901a0ab934034a9be381 SHA-1: 06f5789bb3c94d90c3b4e5ce78db0c3498d5556e SHA-256: 2ddbdb182dfb3cf72948411a42c31db9940cedabd5ac1c6dae45f592dfd9d87b
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress upload directories, suggesting it's designed to lead users to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The ML classifier also flagged it as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5897

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.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613002c05132c---22291355438.pdf In PDF document text
    • http://satunatc.ac.th/ckfinder/userfiles/files/momavepapin.pdfIn PDF document text
    • https://fotoprint.lv/downloads/file/3185749738.pdfIn PDF document text
    • http://melabo.com/upload/files/988183282.pdfIn PDF document text
    • http://savages.lu/imagesRTE/files/81291858684.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/denudesejaxagexunum.pdfIn PDF document text
    • http://sm.ac.th/ckfinder/userfiles/files/wivuxibizukijepatevove.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1613a867b648b4---silakogoduzikagalowudogo.pdfIn PDF document text
    • http://poliinc.com/upload/files/xadevajapapedinage.pdfIn PDF document text
    • https://pellevah.com/upload/files/furaxononirutitedivuzelob.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d261e676a2---76303952243.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139a449037b6---bexenegesopexefir.pdfIn PDF document text
    • https://semineebrasov.ro/printuri-fi/files/bodekovodaromafejega.pdfIn PDF document text
    • https://suthuytinh.com/app/webroot/uploads/files/mepaditifutalaf.pdfIn PDF document text
    • http://infinijewelry.com/userfiles/file/67382897328.pdfIn PDF document text
    • https://hotelite.in/userfiles/file/ruxelerijowazitunowuwux.pdfIn PDF document text
    • http://oreoltour.ru/sites/default/files/file/4739036045.pdfIn PDF document text
    • https://mystruggle.uk/indigo/ckfinder/userfiles/files/nijagibip.pdfIn PDF document text
    • http://cuoredicane.it/userfiles/files/nutamodilipugekil.pdfIn PDF document text
    • http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/3856211001.pdfIn PDF document text
    • http://tbeaindia.com/userfiles/file/43778788385.pdfIn PDF document text
    • http://divyabodhanam.org/userfiles/file/49102435355.pdfIn PDF document text
    • http://alarmy-kamery24.pl/userfiles/file/jubapumaliri.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=reading+qr+codes+androidPDF link annotation

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