Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1d47731df11739…

MALICIOUS

PDF

55.4 KB Created: 2021-09-04 02:36:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e75cbc0211d0efa5b3e17bcf5a535e04 SHA-1: 6e2e2ef6236c3d7b2462e1e38a9382018bb5d390 SHA-256: cc1d47731df117392f4a9a4485bd9533b59044806b21d33f8a89943bc560c8a2
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a link farm pointing to various domains, including compromised CMS uploads, suggesting an attempt to redirect users to malicious content. The PDF_IMAGE_LURE heuristic indicates it may present as an image to trick users into clicking an embedded action.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5388

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
  • 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 55 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://hosvagyok.hu/userfiles/file/63358893710.pdf
    • http://www.contectrade.hu/fckfiles/file/jopizegikusiz.pdf
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fece34cd179---54422944460.pdf
    • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/9c0e4af04f2a7d7c2b31f580932ccc4d/42771924321.pdf
    • https://telorgabus.com/contents/files/49368801378.pdf
    • http://zabradli-znerezu.cz/userfiles/file/43154538673.pdf
    • https://vvpta-irvine.org/userfiles/file/sokosi.pdf
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0845c4360---rulimasarigidu.pdf
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/0d7f471c8b0aa02b862b3cee3d50256c/fajekaxekinomepureg.pdf
    • https://binarbaidservices.com/public_html/userfiles/file/62073476340.pdf
    • https://cafesca.org/ckfinder/userfiles/files/63875673546.pdf
    • https://rzfmuhasebe.com/userfiles/file/bafomipa.pdf
    • http://metalzilemboeventi.com/userfiles/files/savikimelefanik.pdf
    • http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/gibusot.pdf
    • http://2m-m.eu/userfiles/files/sinepikodatot.pdf
    • http://esistore.be/userfiles/file/mobodudomoruliziser.pdf
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/1b31ba1633d4788fbaa3bacb2f5479d2/8855411365.pdf
    • https://bedandbreakfastholten.nl/userfiles/file/nijekedevep.pdf
    • https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/lagozezununajagidasipowu.pdf
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/1eb1568021535a62401e3a1b3ca44346/vusiwomupenalogubumedul.pdf
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/544cd34955d2c7a4dc494f5db23e3674/387045684.pdf
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612aeb9d8051e---kevipaso.pdf
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/70d923558806a6cb7c75269a8b03ead5/pipuk.pdf
    • http://yuha.be/_files/file/86983436764.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=stretching+routine+for+beginners+pdf

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