Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0a9ab1b60689e1…

MALICIOUS

PDF

119.3 KB Created: 2021-06-28 23:22:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 617cf2c800c660ffde38357837951a84 SHA-1: b3d154f9beb9e1dd029f9a1501a3bd535422041a SHA-256: 0e0a9ab1b60689e1536ee1115d3090eaf66a40b5b1698c2a6201dada98ffd1ff
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV and exhibits characteristics of a link farm, with numerous external URIs pointing to compromised WordPress sites. Embedded JavaScript is present, suggesting potential for further malicious actions like redirection or exploitation. The document's structure and the presence of external links indicate an attempt to direct users to potentially harmful content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4341

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/9cb6b4cbe0e96fb0468941bc7dca8359/38652609612.pdf In PDF document text
    • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/8b8hga18ad5uis55db5esc27l8/widasizemotonilolizudovop.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1730b5125---4543144786.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/lorekuviwiteloxaniran.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d20d9163ab---65585263858.pdfIn PDF document text
    • http://brandnewgoods.net/userfiles/file/55496839626.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed3998bd98---bunomovos.pdfIn PDF document text
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5634d4056---nelubivuda.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/985416099609ce2cbceda0.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9d80c6782---97834325536.pdfIn PDF document text
    • https://o-dance.com/upload/files/97293081868.pdfIn PDF document text
    • http://tanabuauto.com/js/upload/files/tunope.pdfIn PDF document text
    • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf54ed15a4d---pufuvivubado.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/5d7c07e6270d7cc0c4e35c98f2ef8546/26339192011.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16098bac80b415---tajanof.pdfIn PDF document text
    • https://bd-sokolovska.eu/userfiles/file/retibavavakit.pdfIn PDF document text
    • http://www.minaakshimajumdar.com/fckimages/file/12891215873.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/b4ee0b578283e4be2bd45324b8a23069/suzow.pdfIn PDF document text
    • https://calmoinc.com/upload/editor/file/tebokajebogekomujejofem.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080338d709ab---32031350893.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/defa1ceb2c188bf93b1b0901483d366a/96541796818.pdfIn PDF document text
    • http://akkoryazilim.com/userfiles/file/63994173273.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cfcd85b193c---supawatel.pdfIn PDF document text
    • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/7uq9la94jd3pnk8l0074o7trdv/nulurilerisebabanager.pdfIn PDF document text
    • http://szyldkj.com/luodan/images/userfiles/file/dozixogezosi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=persona+5+morgana+all+out+attackPDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/734839024353b0f782f4bfc6f08af1e0/sudadiwikirati.pdfIn PDF document text