Malicious PDF — malware analysis report

Static analysis result for SHA-256 d980151500ccd5c3…

MALICIOUS

PDF

56.1 KB Created: 2021-09-03 18:08:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 038ab18e0c017de7c043b1f3036d567e SHA-1: 21ecd326d92113f65677b42a1baf1679332c4a1b SHA-256: d980151500ccd5c3ef38e9960100515efa60562e8e54c24501cae3295d8e20db
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file identified by ClamAV as Pdf.Phishing.Trojan. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a non-clustered link farm on disposable hosting, and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM highlights links to compromised CMS upload storage. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2832

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.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/c578a0735165e5ad1d8b75c61e6be0d2/50462488678.pdf
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/4cb64c37f708283701f174d1b8a89245/57157325779.pdf
    • http://csc0898.com/userfiles/file/20210718204636_ptfil2.pdf
    • http://stevis.cz/files/file/47467678087.pdf
    • https://ever-progress.com/upload/files/tarowi.pdf
    • http://ig-einheitsloks.de/medien/file/39380492326.pdf
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f56e7cab85---vesirodetilavewojesa.pdf
    • http://bakerfamreunion.com/clients/1/13/13be4b03bdabdd3a133c3ee64ed6201b/File/kerugelazoxavowekapuv.pdf
    • http://bilafafafa.com/shopadmin/upload/files/75479472389.pdf
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f9ede9322e3---58990331596.pdf
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/2476bccc2d1c885902ffe71afde1d300/bomogibukupol.pdf
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edb5d9eab71---30283706253.pdf
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e679cfc900b---xodig.pdf
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160978f3dde7b7---xojemabilonij.pdf
    • http://poetische-malerei.de/web/editor/files/42720909300.pdf
    • http://axi-hohenstein.de/userfiles/file/mekusogu.pdf
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/7230durmmk5fumqsgga0c2pnm1/dagugupoguditovikele.pdf
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607621cdbf4e6---nafipogaxodatizedipi.pdf
    • http://viviapalermo.com/userfiles/files/bawarego.pdf
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/71d4158f3eaedd1d817291ac3fda1d64/galuxomimunitilotujabas.pdf
    • https://myvideoclasses.com/ci/userfiles/files/24368643945.pdf
    • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/16073a03394757---31278939882.pdf
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/38olv49kdahuhuqe2k6m9icoqb/89373757186.pdf
    • https://patoman.ro/ckfinder/userfiles/files/kuwugagizaniwibixaweraf.pdf
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ed6c9adfa21---zoxutitemodojozoxovavep.pdf
    • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/d9968f43da8bc4accdfc7d4ccc1b19b8/66746304506.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=blasthole+drilling+in+open+pit+mining+atlas+copco+pdf

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