Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a33a0222e0bb36…

MALICIOUS

PDF

72.5 KB Created: 2021-06-11 12:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6a40a18b14a9a64d6bc22f895da04151 SHA-1: c8eed36309a812c015cd4c2716727de4bd051324 SHA-256: 14a33a0222e0bb36540a7d0dab05b28040ca6cc489226cc2900c1b98bb448ed7
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to potentially malicious or phishing destinations. The presence of multiple external URIs and link farms strongly suggests an attempt to lead the user away from the document to a controlled resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9571

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ketchas.ru/uplcv?utm_term=tomorrow+with+you+indo+sub PDF link annotation
    • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/4kjudj93s29ctenhp38kmnj9qu/53754179993.pdfIn PDF document text
    • http://agro-pasz.pl/ckfinder/userfiles/files/51679275896.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090644934f23---6523220802.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16084f665ab587---38090600672.pdfIn PDF document text
    • http://pantryscan.com/123cars/imagefck/file/18661952658.pdfIn PDF document text
    • http://bkdesign.ee/userfiles/file/jenevuz.pdfIn PDF document text
    • https://mszukam.pl/dat//file/zatevufarizugimokijagidoz.pdfIn PDF document text
    • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/44c761ae075a171f2173ca20331d70d9/zatujuwesapexo.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606f032057fd7---kunovogod.pdfIn PDF document text
    • http://allycatering.com/userfiles/pexowexawomud.pdfIn PDF document text
    • http://ankaser.com/userfiles/file/28744016024.pdfIn PDF document text
    • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/g7aivlqttg3ogcldjcg6b1g2c7/95230485597.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/pieh1pukjsgcppngjg4j8hdirl/20627443504.pdfIn PDF document text
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b89ec01920e---20773105803.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB21 17032 bytes
SHA-256: 62a6967cd7f72947226e86abe3a9d1f2887e5fa9dec372609128a8af9257b31f

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