Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0701b1c9b1d9b6…

MALICIOUS

PDF

40.1 KB Created: 2021-06-29 19:41:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: e33e9ff3b4b732695e06c469bc4a8266 SHA-1: bff5aff676e6e3fbfc81a4a9c21a6be78327372b SHA-256: bd0701b1c9b1d9b64357efeac2aa13e0fd92a550a55a1fe81b5a7e6dc9ba7c64
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as a phishing lure due to its small size and image-heavy content, designed to trick users into clicking embedded links. The numerous URLs point to compromised WordPress sites, suggesting a tactic to host malicious content or redirect users to phishing pages. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8821

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://oniceh.ru/uplcv?utm_term=naruto+shippuden+english+dubbed+online+free PDF link annotation
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/e2dbaff7f042da3490b302dc94d68713/13099588886.pdfIn PDF document text
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/5ce7b83001bdae51f6eed2aebb65f9cc/3103612661.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16093fea966b5d---95893730673.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/e537f8139c62e61ab91d9323bbf5f66a/77850395929.pdfIn PDF document text
    • http://e-kva.ru/admin/ckfinder/userfiles/files/vanatomepikixelugad.pdfIn PDF document text
    • https://tramtron.vn/uploads/files/files/95417898182.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/c07c758548942c6e2f63aea47d49a3e4/pufinapaxotokisaxozu.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/d7475b2d9ba5c949202480b04d7caa6a/kazamu.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/a29b4c5a28ffadbceee453a831f57b96/26482606753.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160750b99680a6---4818910698.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160807edaa964c---judugezotaselu.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071641ccfd5a---luboxaxukegeninibinekox.pdfIn PDF document text
    • https://www.saammohaseb.ir/wp-content/plugins/super-forms/uploads/php/files/bf58045be7ebb08ab6dbaf268f732ac1/65855286759.pdfIn PDF document text
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/r42c9krl0lnsj0auh1am8b68sn/beniviliwisenilevino.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/d7a3744e60aa5a75a6676ea6fed2a46e/41906419907.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/ckqrkbggj3crte4ufiia8il13u/kulidovomiraromuma.pdfIn PDF document text
    • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16074b3a3a8611---6447696867.pdfIn PDF document text
    • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/d5b54ri8uk5emc2ocubrfa1ko7/22514781509.pdfIn PDF document text

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