Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce0dfa819068622…

MALICIOUS

PDF

63.7 KB Created: 2021-08-01 20:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 70dd3b74e7c40f5aa7591903a78ec0d0 SHA-1: 0cd74c69bc8112715de525e280fb4d9b9f256487 SHA-256: 7ce0dfa8190686221ffc31539907522bfb8ee5c454a82efd706338093d3a485f
154 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple PDF files hosted on compromised WordPress sites. Heuristics indicate these are likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9828

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://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ddfb311a7---mibekubefi.pdf In PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/74951265356.pdfIn PDF document text
    • https://istanajpdua.com/contents//files/biripixamimogow.pdfIn PDF document text
    • http://bygreenpure.com/userfiles/file/52905836934.pdfIn PDF document text
    • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/midapimuwedak.pdfIn PDF document text
    • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/584d7fb8219da7eb87d288c755b1d815/febaxi.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/aa65fe046f80d34e396dd14d95c88e09/jaragowike.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f37efd9ea5b---27853668340.pdfIn PDF document text
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/50a08ae060c22859fb817d84a8b896b8/xisemalejagotabasapawij.pdfIn PDF document text
    • http://kasargod.net/uploads/file/29391603527.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/638fd835c4f66d10fbe204b1b6a6c1e5/pixejipagejikegetifeb.pdfIn PDF document text
    • http://mazraeir.com/images/upload/files/64253986359.pdfIn PDF document text
    • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6f7d755cb8---6293321075.pdfIn PDF document text
    • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/dijanuwotala.pdfIn PDF document text
    • http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/10143370976.pdfIn PDF document text
    • https://stdtekstil.com/upload/ckfinder/files/30484802080.pdfIn PDF document text
    • https://thefertilizergranulator.com/d/files/57458767238.pdfIn PDF document text
    • http://chinajnbt.com/images/upload/File/78459964238.pdfIn PDF document text
    • https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/2ac76529acc109eda13a4e19e7b55655/mojuremadelaf.pdfIn PDF document text
    • http://ctkupavna.ru/upload/file/nawuvogog.pdfIn PDF document text
    • http://dkmmotor.com/files/userfiles/file/pizojikuzatuz.pdfIn PDF document text
    • http://dh-life.com/ckfinder/userfiles/files/48122114665.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+write+a+5+paragraph+orderPDF link annotation

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