Malicious PDF — malware analysis report

Static analysis result for SHA-256 8059cbc8bcc71f57…

MALICIOUS

PDF

103.7 KB Created: 2021-07-31 06:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 5e4b36cd75e255aee40e16200e740b0b SHA-1: a6251c244224a3db2262fe3383cc7fb8299c64e0 SHA-256: 8059cbc8bcc71f57929bdb24df1d13e4fa35e6996b209e8c9a594e37faa98004
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It functions as a link farm, containing numerous URLs that point to compromised CMS upload directories and disposable hosting. The primary purpose appears to be directing users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8252

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://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/9c6bui79f6ibjt4f6g5qjqbcp1/39900776469.pdf
    • http://aqbnb.com/uploadfile/file/30492735025.pdf
    • http://alnadaoil.com/userfiles/file/zagipefoxofoligekebemi.pdf
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bde5518b02d---99054415905.pdf
    • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/ef7579544eb68d93a76336e22efe2abd/94288701396.pdf
    • https://perfecthospital.net/FCKeditor/file/79334758075.pdf
    • http://toanlinh.vn/upload/files/70231635510.pdf
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/6l9d5801vamroh310tci31bs94/jugitewulenujanod.pdf
    • http://bsp-oblspl.org/ckfinder/userfiles/files/gevum.pdf
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16093162c0a27e---putego.pdf
    • http://mu-rrrc.com/userfiles/file/2794342199.pdf
    • https://ferdavagnar.is/images/fck/file/87714761500.pdf
    • http://chrisdepanneservices.fr/Sites/cds/files/pevasad.pdf
    • http://biomassasia.net/data_ed/userfiles/file/96320888766.pdf
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/se7ha2su3fvkapf067vplri9j0/1696989094.pdf
    • http://papierplus.pl/userfiles/file/29328153094.pdf
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160c1a47968ad0---2139227630.pdf
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161031b617ba6f---gorojudoz.pdf
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160750d28a341d---xigomolibo.pdf
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/16075713dbcd39---nomegenatetufo.pdf
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722c6eaaf2f---wusup.pdf
    • http://stfrancisfrankford.com/clients/9/90/9051900d87e3fdd5bc97eff612ac54c4/File/bojaja.pdf
    • http://anhuizhkj.com/upload_fck/file/2021-5-3/20210503155239960186.pdf
    • http://iteequipment.com/clients/65150/File/nibinejodewuwakodawa.pdf
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/9m0fnqc9scggdgqfi9uq8qccmb/sonez.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=the+pop+rock+and+soul+reader+3rd+edition+pdf+free

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