Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2e3f7666f0b7ae…

MALICIOUS

PDF

62.0 KB Created: 2021-09-03 23:52:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 6bcca87bbfc5c0f73f8fd957ee07bbfd SHA-1: 11ffe5ff9a829902c2a537e0b84ac9a871cc7a1d SHA-256: 1b2e3f7666f0b7ae4c519ca0f66ddd7a349bf268b8215a8a1bfc7a39f00dc44e
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable hosting sites, which is a common tactic for phishing or malware distribution. The presence of numerous external URIs and link farm indicators strongly suggests an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6040

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://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b378389aa74---76803280329.pdf In PDF document text
    • http://cartopack.be/Images/file/62986362502.pdfIn PDF document text
    • http://cosmic-kino.ru/sadm_files/50025019810.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160919687724fa---21335386792.pdfIn PDF document text
    • http://eko-uklid.com/files/file/zoteroribavatowufizopuku.pdfIn PDF document text
    • http://classicalgardenfountains.com/uplds/file/57310489994.pdfIn PDF document text
    • http://wwstationery.com/files/file/julovaloxudi.pdfIn PDF document text
    • http://hzkontejnery.cz/ckfinder/userfiles/files/33670697523.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/4abd7359dedf37b61de94b5fbc1ee8d9/nevexiwuteleze.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7564b5278c---27828473523.pdfIn PDF document text
    • http://geopraxis.it/userfiles/files/vuradixelufopikufide.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/be6f65ef5c5cfe35d0ae1cdf642931a8/mekimibufanajik.pdfIn PDF document text
    • http://dakmoto.cz/obrazky/file/54949084787.pdfIn PDF document text
    • http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/49093ec8e689679487c18cf24b543d6c/10095956206.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a38be9a2c2c---serivonekebajumefunasu.pdfIn PDF document text
    • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/9324bdc0490076972f7ed588399f0358/kajorajupuf.pdfIn PDF document text
    • http://sanmarinreunion.com/clients/c/c0/c0747301521b2fcd71a0106c9132c7e7/File/genunutege.pdfIn PDF document text
    • http://hrdiborice.cz/erucom1/files/files/50584348069.pdfIn PDF document text
    • https://ariaparvaz.com/basefile/ariaparvazcom/files/gizaseminujom.pdfIn PDF document text
    • https://tecnibat.net/uploads/archivos/27444902030.pdfIn PDF document text
    • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lujilesaribasapilobozifem.pdfIn PDF document text
    • https://ecotranslation.ca/upload/editor/file/lapijirifizer.pdfIn PDF document text
    • https://alkalacarservice.com/public_html/userfiles/file/82517247441.pdfIn PDF document text
    • http://sunrui-ti.com/d/files/mokesififosawakedasede.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=girar+documento+pdf+adobe+readerPDF link annotation

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