Malicious PDF — malware analysis report

Static analysis result for SHA-256 988d0c176d3c9dc4…

MALICIOUS

PDF

72.0 KB Created: 2021-09-10 06:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: ff90970b0a8b1fa3d75c88855a873d55 SHA-1: 5fe91714f7fb0f1bb20e5349ae1fe5302a508c83 SHA-256: 988d0c176d3c9dc40989b63c43353a47471ebbc25458d64d171a61ac4ee07056
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many of which point to compromised WordPress upload directories and disposable hosting. This behavior is indicative of a link farm designed to redirect users to malicious content or phishing sites. The ClamAV detection further supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3472

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 https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a943a6cac5---35421900262.pdf In PDF document text
    • http://botosani.ro/img/uploads/file/52113445495.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/mf0eckvnljegqi6tij1gjjon7s/86745362070.pdfIn PDF document text
    • http://moestuinwebshop.nl/userfiles/file/fenijagatezovo.pdfIn PDF document text
    • https://newsale.linyn.mobi/upload/ckeditor/pages/files/7447475753.pdfIn PDF document text
    • http://www.srijonihealinghome.com/fckimages/file/23888015707.pdfIn PDF document text
    • http://amidoux-peintures.com/ckfinder/userfiles/files/17452976517.pdfIn PDF document text
    • http://creationart.hu/files/file/sowikofa.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/puvamirudi.pdfIn PDF document text
    • https://sdhouse.info/ckfinder/userfiles/files/dijurojosaxepajadizatumo.pdfIn PDF document text
    • https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/12fcd36e7277d5f2fa0cf404947993b6/5679030071.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/7hja5c36lfpfnannaqtoetm190/logevarisifose.pdfIn PDF document text
    • https://westhygiene.hu/editor_up/46888073656.pdfIn PDF document text
    • http://dokturmice.com/ckfinder/userfiles/files/80323811445.pdfIn PDF document text
    • https://cafesca.info/ckfinder/userfiles/files/26012063757.pdfIn PDF document text
    • http://randygordonlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/90777406274.pdfIn PDF document text
    • https://pcparts.fr/ckfinder/userfiles/files/30501628539.pdfIn PDF document text
    • https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/29125158459.pdfIn PDF document text
    • http://bronia.org/userfiles/file/15699717458.pdfIn PDF document text
    • http://harchovyk.com/userfiles/file/kojul.pdfIn PDF document text
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161312208e049e---3636561871.pdfIn PDF document text
    • https://www.iieng.org/editor/ckfinder/userfiles/files/zavepadofijupumulonel.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d4fb4d5e5---fokenawarefowu.pdfIn PDF document text
    • http://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/33636005094.pdfIn PDF document text
    • http://theseadiaries.com/ckfinder/userfiles/files/gujejubawajura.pdfIn PDF document text
    • https://gcr.goldcrownresort.com/magazine_files/files/13597194091.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=sky+background+png+hdPDF link annotation

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