Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1c9a6dcfe6dcfb0…

MALICIOUS

PDF

54.7 KB Created: 2021-05-22 17:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6764f8a11166d729b0149c576ee182a4 SHA-1: 3a2b8aef237450c6d239694bda3d46540529e432 SHA-256: c1c9a6dcfe6dcfb0997ce619d8837f449d889f71d849a7da3261194c367fdb6f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to numerous URLs, many hosted on compromised WordPress sites. This structure is typical of phishing campaigns or sites distributing malware. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent. No scripts were extracted, but the overall pattern suggests the document is designed to lure users to malicious external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7497

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://archism.ru/uplcv?utm_term=why+are+bull+sharks+aggressive
    • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c426c1cf8---74758172005.pdf
    • http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/92fdb68c12690154d905223c23452eb2/78118242035.pdf
    • https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/64bca9fcc976b52b9ab5db719eb858c3/53417186468.pdf
    • https://paklya.su/design/img/upload/file/93060288904.pdf
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160935cb8853ae---pazijevebuluvusujet.pdf
    • https://actor-conseil.com/files/file/niwuvawewefagiv.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c27022d71---pukutifogaf.pdf
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072bab93a77b---nenowelux.pdf
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c146e567db---wonojuvevoruduzebez.pdf
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/158dbcb22ec84d4a3e3b5a3c233ac05d/60053827970.pdf
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/291s33gtba77jk4eguk73ccdb6/53667958976.pdf
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2b400162d---resegujifepudigitep.pdf
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/5c302b335cc10305410c6852200d1921/jolatonaxufazunaniju.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096d72473573---ruburozafuvajunexagedimij.pdf
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b331f77396---savevuwatomo.pdf
    • http://ideas4mypool.com/userfiles/file/98077977005.pdf
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6273090466---73092005409.pdf
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/feeba372abd6db018224ba5ca06dd003/59491365250.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.