Malicious PDF — malware analysis report

Static analysis result for SHA-256 065a9ee3f6b499cd…

MALICIOUS

PDF

63.7 KB Created: 2021-09-18 21:35:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 621061fcfff6273cc4c4a8e693b3142a SHA-1: 12e476203017f1628a06f48894aaca486928955c SHA-256: 065a9ee3f6b499cdf186491f8ad1d1adf82e52857eb8478508427d14e117c227
154 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple compromised WordPress upload directories and other disposable hosting sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to malicious content or phishing pages. No scripts were extracted, but the structure and URL targets are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6241

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/q74e020q6adealvueljspvfh5q/loxoruxukarumududisazisi.pdf
    • http://jiji.pgo.tw/pic/uploads/files/47068573955.pdf
    • http://realestatespoznan.com/uploads/dupoteveregu.pdf
    • https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/23689085080.pdf
    • http://tiszaladany.hu/upload/file/46010664017.pdf
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1443cd3d5---vurolaje.pdf
    • http://ajtoablakcentrum.com/_user/file/vanebawefulerusakadupekov.pdf
    • http://allier-genealogie.org/File:/38024338330.pdf
    • http://ebd.su/UFD/7623/files/gikifot.pdf
    • http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/52448128341.pdf
    • http://thestarbusan.net/FileData/ckfinder/files/20210907_AACF7B5808F9736D.pdf
    • http://cbcom.eu/ressource/site-image/files/bezetasofuriko.pdf
    • http://www.frank-diagn.hu/userfiles/files/suroru.pdf
    • http://haohanlegend.com/Uploadfiles/files/zawitesusepopuzonovujiz.pdf
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f547102f05---rufazefiwebovusivusofuge.pdf
    • http://csc025.com/userfiles/file/20210918065043_4hu7t5.pdf
    • http://105chers.netsociality.com/upload/files/94714924472.pdf
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b1963ed32---kejesojadojaramuli.pdf
    • https://interior-mark.com/ckfinder/userfiles/files/ximomenavogipijodunibej.pdf
    • http://dgjinhak.kr/DATA/upload/files/202109120647489290.pdf
    • http://petra-koparki.pl/Upload/file/3280769955.pdf
    • http://villabrown.it/userfiles/files/53383633209.pdf
    • https://atrax.hr/files/93779520092.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=sad+light+app+android

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