Malicious PDF — malware analysis report

Static analysis result for SHA-256 fabbedeae055ca04…

MALICIOUS

PDF

47.6 KB Created: 2021-09-04 10:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: c4d782385dd07816a79360866d77f3f5 SHA-1: 5c3619583c71e312a1011a652cf11d371dc73ed0 SHA-256: fabbedeae055ca0495442196983b1b2a19966d00839d7aea7c504c53fec2a15b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to compromised WordPress sites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the nature of the embedded links and the PDF structure itself suggests it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7355

Heuristics 6

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://poiskvod.ru/images/file/veruxugupapaxusukisuniso.pdf In PDF document text
    • https://www.natursany.com//ckfinder/userfiles/files/39506641854.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/0296a87ed1bf774878294352169d0f11/balefogidosa.pdfIn PDF document text
    • https://magerp.org/upload/files/45744934276.pdfIn PDF document text
    • http://canphantich.net/Images_upload/files/gunudelanosewababenuku.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/h3rnjhisf1cvurmmrc0gl4afr5/ponupasezibazugegu.pdfIn PDF document text
    • http://cappellastudio.it/userfiles/files/52806490784.pdfIn PDF document text
    • http://tecsun-moscow.ru/docs/file/1843273278.pdfIn PDF document text
    • http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7c2694f70---zumanesibirusuga.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/75g50njalsvu5pj01686vudia1/98808862094.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/aecc26793cc7bdf40ca4eeeac74fe057/mekupukizudefivuwatizipo.pdfIn PDF document text
    • http://yomamasushitogo.com/uploads/files/wedogofap.pdfIn PDF document text
    • http://caopump.com/admin/userfiles/file/zefewutarogetopag.pdfIn PDF document text
    • http://autohondl.cz/userfiles/file/galemegabibezimuwovete.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b35d0ade06a---mubafoz.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/edd13e9558b61bb84d88654f7def911b/21573357606.pdfIn PDF document text
    • https://kristaldicarlo.com/userfiles/file/lozomikimajesowopinowov.pdfIn PDF document text
    • https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/wiwitavefenofepoviseraked.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/fa467a42d28639ce851e4cdbc8df1a6e/21424721965.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608980ab99a77---6974959929.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/6b898cf8295e33fd56ec1580f4175c50/detaxapevulibefixano.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b8e5926e8ba---26356241388.pdfIn PDF document text
    • http://asesorgubernamental.com/images/file/14490244169.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607088f36e86a---kimesisegenunataruzuxi.pdfIn PDF document text
    • http://chnli.tw/CKEdit/upload/files/mufezonureg.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=let%27s+talk+about+english+worksheetPDF link annotation