Malicious PDF — malware analysis report

Static analysis result for SHA-256 582fa11b35071e71…

MALICIOUS

PDF

50.3 KB Created: 2021-09-13 10:10:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 68689c37156830ca126c3dd801127529 SHA-1: 87bedf49f02a1bca7cb52aab13304e3cff5cbc62 SHA-256: 582fa11b35071e7120c19c583b6c3f8851415a3e2d28f7c7937a68f9c745d79e
124 Risk Score

Malware Insights

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

The sample is identified as a malicious PDF by ClamAV and ML classifiers. It contains numerous embedded URLs, with a high concentration of links pointing to disposable domains, suggesting a link farm or SEO poisoning tactic. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags this behavior, indicating a likely attempt to distribute malicious content or drive traffic to compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6227

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://creatinglifeoptions.com/userfiles/files/90273007859.pdf In PDF document text
    • http://aodaiminhhanh.com/app/webroot/uploads/files/46270886387.pdfIn PDF document text
    • http://bamor.org/userfiles/file/jixatogemewemabepevuxapi.pdfIn PDF document text
    • http://vitanova-cattery.com/upload/file/disefivuvudolujinavizaj.pdfIn PDF document text
    • http://gyndoktors.de/ckfinder/userfiles/files/1505901531.pdfIn PDF document text
    • http://apothepharma.com/upload/files/47662335292.pdfIn PDF document text
    • http://www.bongbansaigon.com/uploads/files/tumedop.pdfIn PDF document text
    • https://pianotuningdarwin.com/userfiles/files/xudugipupa.pdfIn PDF document text
    • https://bi-kiesabbau.de/cmsimple/images/file/mogudil.pdfIn PDF document text
    • http://www.wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/96379013132.pdfIn PDF document text
    • http://ballarioarchitetti.eu/userfiles/files/vetilotosewib.pdfIn PDF document text
    • https://lingchuanfloor.com/app/webroot/userfiles/files/xebokupu.pdfIn PDF document text
    • http://gediklimakinahidrolik.com/resimler/files/poxunugusiboxit.pdfIn PDF document text
    • https://abbma.in/admin/uploads/file/bakide.pdfIn PDF document text
    • https://rsebolivia.org/userfiles/file/xapegubogajivi.pdfIn PDF document text
    • http://mh-gartengestaltung.de/userfiles/file/gikotunomakijosefabefed.pdfIn PDF document text
    • https://banderlogclub.ru/Files/file/99725889937.pdfIn PDF document text
    • http://1-sanya.com/blog_images/blog_/file/6805195476.pdfIn PDF document text
    • http://shoreluxurylimos.com/userfiles/files/lepirufubufovodinegeraku.pdfIn PDF document text
    • https://sudhirsachdevaclasses.com/ci/userfiles/files/93615407690.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613527aead023---notawezexak.pdfIn PDF document text
    • http://autosvilar.com/uploads/ckfinder/files/zofup.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/45493931186.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=demon+slayer+movie+canada+releasePDF link annotation