Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db2ad0f6d70f5d9…

MALICIOUS

PDF

63.1 KB Created: 2021-04-16 00:32:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: fae8063ac7f84a00eb7953ca2d20f384 SHA-1: e879f62e8e1e801dccacc916f4af54c1cc80b947 SHA-256: 1db2ad0f6d70f5d9c2b26f6a8223ee004c52c12098184031817148db85b450e4
64 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8118

Heuristics 3

  • 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://crophysi.ru/strik?utm_term=are+bold+jumping+spiders+dangerous PDF link annotation
    • http://vemelaribox.getenjoyment.net/approximation_questions_download.pdfIn PDF document text
    • http://lnstagram-office.com/jonelanajh5uyk.pdfIn PDF document text
    • http://pavaverijakat.iblogger.org/rapebivirixisujodufut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466662/normal_601ce98d59a7b.pdfIn PDF document text
    • https://cdn.sqhk.co/gujurolekuma/XrRhdii/paradumid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454541/normal_603e7e6992ba5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462982/normal_5ff76f21b8aa7.pdfIn PDF document text
    • http://nesobaka9.xyz/wadaxirelisudikemosmlem.pdfIn PDF document text
    • http://fresh-ita.fun/gangster_wallpaper_girlfz6yr.pdfIn PDF document text
    • https://cdn.sqhk.co/tijonodevi/bhcbWgg/halloween_male_vampire_makeup_ideas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470387/normal_602d946c933e3.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/5odiiMQ/99657159914.pdfIn PDF document text
    • https://cdn.sqhk.co/navozaxezini/chjLJAG/gerabutifox.pdfIn PDF document text
    • https://436010f1-0dd7-4950-aec0-3bdf337573e8.filesusr.com/ugd/5a4c69_0dbf0752335548238ad86160e071404a.pdf?index=trueIn PDF document text
    • http://puwojewemuxa.epizy.com/zijedosev.pdfIn PDF document text
    • https://8a7e94d2-1b07-4399-8a7b-cfebf1eb419e.filesusr.com/ugd/e78b77_a2a245603dac43f68e604777d261c7e1.pdf?index=trueIn PDF document text
    • https://ae8c1479-5121-4009-b0ed-8259dbb1205b.filesusr.com/ugd/0aff45_d5fb4b85a3e940f6b1c7b382443d4c84.pdf?index=trueIn PDF document text
    • http://todidetiped.onlinewebshop.net/illustrated_oxford_dictionary_download.pdfIn PDF document text
    • https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_236cf039bdea4007a1d05cb8ba32b21e.pdf?index=trueIn PDF document text
    • https://8f20b4bd-83f7-4a55-8c6f-e9501e2e061c.filesusr.com/ugd/c1c462_88f8d2ede5b044b3991a710aa3919353.pdf?index=trueIn PDF document text

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