Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ed912582c48e6a…

MALICIOUS

PDF

48.4 KB Created: 2021-09-20 15:07:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 50cb106d6344d9cfac02d7d49709d552 SHA-1: c1f715b634f59221b5dad7bc54ea5025b2cfab60 SHA-256: 34ed912582c48e6a1d9c9bc7e230bd273297ddc948aa4e12dec25eafddc5905f
154 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated maliciousness. It contains a link farm pointing to various PDF files hosted on compromised or disposable domains, suggesting an attempt to redirect users to malicious content. The presence of multiple external URIs and a link farm indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8005

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://artedeeducar.com.br/ckfinder/userfiles/files/60075040312.pdf In PDF document text
    • https://ptogel2.com/contents/files/74534016457.pdfIn PDF document text
    • https://aljuboori.com/userfiles/files/66742797180.pdfIn PDF document text
    • https://exam11.menapoint.com/app/webroot/upload/files/73477265068.pdfIn PDF document text
    • https://gretajensen.com/ckfinder/userfiles/files/vowutaruxafowamuwi.pdfIn PDF document text
    • http://alburigiott.it/userfiles/files/95261554465.pdfIn PDF document text
    • https://epagneuls-bretons.fr/caningest/images/file/pezabusoges.pdfIn PDF document text
    • http://karpatskiles.ru/store/file/posaloletirodede.pdfIn PDF document text
    • https://limblength-sldf.com/userfiles/file/19867884159.pdfIn PDF document text
    • http://jlssj.com/qianzi/upfile/case_editor/file/zemoborojokenugedazidi.pdfIn PDF document text
    • http://herborgthailand.com/file_media/file_image/file/69255544736.pdfIn PDF document text
    • http://clinicaveterinariaalbese.eu/userfiles/files/mowigobenajibet.pdfIn PDF document text
    • https://dcimx.com/files/19960631958.pdfIn PDF document text
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f96a8a1d39---radazobuwoji.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/c4b2389e2ef95c0cdd62e00eaa736bb2/getarejobemubovemej.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147bb869f2b7---sulepatujizot.pdfIn PDF document text
    • http://offerparts.com/upload/files/begulosafatu.pdfIn PDF document text
    • http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/nejifeva.pdfIn PDF document text
    • http://bamboomfi.com/htdocs/cljr/data/files/mavikamurumopemodi.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/mukizatovixir.pdfIn PDF document text
    • https://herfection.herfection.tw/upload/ckfinder_temp/files/20210902195826.pdfIn PDF document text
    • http://tecnoservizi.com/userfiles/files/pidiwanerim.pdfIn PDF document text
    • http://hzjksj.com/images/upload/File/levasurafa.pdfIn PDF document text
    • http://eperon-kochersberg.com/img_db/rusetipopikowud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=talking+tom+and+friends+download+apkPDF link annotation

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