Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e2b3fadaba09d84…

MALICIOUS

PDF

71.3 KB Created: 2021-09-01 09:09:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: d7d9e1524c2e0449b7816b38d6b302b6 SHA-1: 3ca7d71eedb9eea0efc04b0878af35052bda81c1 SHA-256: 5e2b3fadaba09d8464ce95983985b6a0f08c0a21adb75d78f05f7157fd8707cd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. While no scripts were explicitly extracted, the nature of the link farm suggests it's designed to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9343

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://makrostal.pl/user_images/file/26957747398.pdf In PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/r8g387rd40kjn63r82li1fnmrc/pubewamegamibalaxazexisat.pdfIn PDF document text
    • http://suncitygroup.ir/basefile/suncitygroupir/files/gewitagowezuworo.pdfIn PDF document text
    • http://asea-admin.com/_userfiles/file/20210628211612.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608382a80dff8---xoxusurepakumev.pdfIn PDF document text
    • https://baptistfriends.org/media/42953999541.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b81787e0e54---nisagamudinavoda.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/e0871af31e6d48e7ddb8aa780486c742/70976259233.pdfIn PDF document text
    • http://swhwsolution.it/ckeditor-ckfinder-integration/uploads/files/muxexotivamuvufes.pdfIn PDF document text
    • http://photonart.nl/phpcmsys/file/xateteziluvoge.pdfIn PDF document text
    • http://gruppocinofilomarsalese.com/userfiles/files/19137329099.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/8870a6666fb314ab3bbb7cdca30b4eb6/gazenesazejazironoguw.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076695acac90---90418237592.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/ae3d9e7fd13a6c439c2bd7e7a46bc7a9/29784912380.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b3b7f0702---rulusuwu.pdfIn PDF document text
    • https://chiuman-hk.com/images/file/6074093227.pdfIn PDF document text
    • http://acudrved.com/ckfinder/userfiles/files/58033304210.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/efd02c0c8d99dd5bd75b0e6cadbe8a93/sarimemeruwilimo.pdfIn PDF document text
    • http://cartopack.com/Images/file/zikufanijemipelezebufesuf.pdfIn PDF document text
    • http://esrafisek.com/images_upload/files/kevejokafemefedox.pdfIn PDF document text
    • http://didopack.com/files/25016676237.pdfIn PDF document text
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/4f212bc74dbb72f01cd78618811aaa8c/safifemotibupigasotu.pdfIn PDF document text
    • https://oddluzanie.net/userfiles/file/47180803311.pdfIn PDF document text
    • http://garderoba.sk/images/_file/83838605798.pdfIn PDF document text
    • https://distriparkbotlek.nl/userfiles/files/gegebexugemiz.pdfIn PDF document text
    • http://positiveforce.in/uploads/files/wavuroledojiweraseka.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d0ae4292b---dedijuved.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=spark+broadcast+joinPDF link annotation

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