Malicious PDF — malware analysis report

Static analysis result for SHA-256 a25f9820affc44e2…

MALICIOUS

PDF

58.1 KB Created: 2021-06-25 20:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 77a1d0a103addd84e4a4b3b75436cbd6 SHA-1: c0626c8c94133b25a265bf1f8e54414766c6a550 SHA-256: a25f9820affc44e28dfe03ca10793c7dcae98964ab5bbec83e78f0b65bf76266
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was detected as malicious by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's used to distribute further malicious content or phish users. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5305

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 http://asea-admin.com/_userfiles/file/20210505124502.pdf In PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c98e573737---rowowonawuxozuwa.pdfIn PDF document text
    • https://tenshinorchids.com/FCKeditor_upload/file/60538275665.pdfIn PDF document text
    • https://ijmscr.com/ckfinder/userfiles/files/17122866449.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/smqp54p84l9hj868aehvm1qenf/2456038397.pdfIn PDF document text
    • https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/42fd989ec7e4065e0bd8bd5a670fe530/71381082652.pdfIn PDF document text
    • http://abc-tel.ru/data/File/bobanesov.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f07a05abe6---faser.pdfIn PDF document text
    • http://spearsyounglegacy.com/clients/b/b2/b2c23f164518415ec8f3c1c8d0af542d/File/pesuxategawilegok.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e47ae62215---dobelabekikulorajupenuna.pdfIn PDF document text
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/03616fe8fc2f913be12e928f7783e355/repewasufiwudufajer.pdfIn PDF document text
    • http://appartenvue.net/appart/upload/images/pigovarufumog.pdfIn PDF document text
    • https://alexandrapanayotou.com/web/images/static/file/33246926704.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/2b9a348907239f6d0771611e923e9209/wofuxorela.pdfIn PDF document text
    • https://walkandsmile.com/userfiles/file/vemesojarisew.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a574611404e---wunikoboxarukib.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/4cecd9651fa5cce89db6ac15b1d646b1/bubirezibilovirifikakisex.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/8119hdlu1sso493p3fqgmmc39k/bilaninikate.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b05954bb065---zobobejoxafisudamuzadexiv.pdfIn PDF document text
    • http://mamam.by/upload/File/file/32738229295.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7335c165a3---60834525936.pdfIn PDF document text
    • http://ankamet.com/userfiles/file/73075405598.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/6m00ksgd30mqt8tsbte4qsu7b7/54748236279.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=pipe+and+pipe+fitting+mcq+pdfPDF link annotation

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