Malicious PDF — malware analysis report

Static analysis result for SHA-256 69dae48a85227d0d…

MALICIOUS

PDF

62.6 KB Created: 2021-09-08 19:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 41c08278223d0bf435940146e8982558 SHA-1: 2fee118d579030c2917ea3cc8c182132d5df1e6c SHA-256: 69dae48a85227d0d6ae0bd178650f5e4c6202d3510b04361f14c3203df9fd7a0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to potentially compromised websites, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. The ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95-10044375-0' and the ML classifier further indicate malicious intent, likely to trick users into downloading further malware. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6381

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://tottazo.com/userfiles/file/92097701656.pdf In PDF document text
    • http://gasthaus-steinkirchen.de/img/editor/file/jariwuxesedupeked.pdfIn PDF document text
    • http://driver-jazda.pl/upload/file/lisebagelu.pdfIn PDF document text
    • http://jadeite.ru/images/file/ronoloxoxej.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/garasanopadesu.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/6427899efcb29020ca07bfbc87971288/sidoxufegukufa.pdfIn PDF document text
    • http://kayamedbursa.com/userfiles/file/10169794273.pdfIn PDF document text
    • http://theartofdesign.nl/ckfinder/userfiles/files/zexafirepexupitosuramig.pdfIn PDF document text
    • https://balajitutorial.com/admin/userfiles/file/xabagunap.pdfIn PDF document text
    • https://kolkatanagariksammelan.org/ckfinder/userfiles/files/zitonetetudakuxib.pdfIn PDF document text
    • http://www.farmaciapenil.es/userfiles/files/17644949352.pdfIn PDF document text
    • http://levakov132.ru/userfiles/file/punuzepogirirolaran.pdfIn PDF document text
    • http://www.enredmail.com/templates/files/idCliente_/file/moxavoborugipibipiro.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161387da92867f---72376009674.pdfIn PDF document text
    • http://naphotelbangkok.com/userfiles/files/61004553425.pdfIn PDF document text
    • http://yourmoneyyourbank.com/uploads/File/63934322001.pdfIn PDF document text
    • http://rujiahk.com/uploadfiles/file/98763314654.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161344c3a42082---xukiwoganudejigeme.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/denopikenadowozeji.pdfIn PDF document text
    • http://gjbbang.com/userData/board/file/75425057103.pdfIn PDF document text
    • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161341e7dafec7---23993973440.pdfIn PDF document text
    • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161305f570ae91---91107183789.pdfIn PDF document text
    • http://rpsbchamber.org/editorData/file/zusowuwi.pdfIn PDF document text
    • http://dulwichtaxi.com/survey/userfiles/files/xefatimutijezu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=arrivederci+2+pdf+free+downloadPDF link annotation

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