Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ba724153817bd08…

MALICIOUS

PDF

67.5 KB Created: 2021-06-18 11:35:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 822bb9e5bb167860e0a56781185abcff SHA-1: 00f50597455ab13e0d10a22522172a84b71756ac SHA-256: 5ba724153817bd08f0e8a649f6f4bcfbb91eb1d6c8275e71b55d34615545d492
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was detected as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or trojan delivery mechanism. The document body contains a lure for a movie download, and numerous URLs point to compromised WordPress sites and other disposable hosting, suggesting it's part of a link farm designed to distribute malware. No scripts were extracted, but the presence of external URIs and the overall structure strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8311

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://wastran.ru/uplcv?utm_term=shadi+me+jarur+aana+full+movie+download+123mkv PDF link annotation
    • https://muratay.nl/userfiles/file/13600752732.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16095a8b8ea188---36861613015.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160986b0b4e160---lulubu.pdfIn PDF document text
    • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/7bbd5b90d32e82fa5fffd79c2382d246/pudimukumoju.pdfIn PDF document text
    • http://intergeored.com/upload/File/10846574123.pdfIn PDF document text
    • http://technocom.pl/editor/file/zemivaxejuzuzefeliroxon.pdfIn PDF document text
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071a923e2e82---65673766548.pdfIn PDF document text
    • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160715ceec3ca8---bigiwoviw.pdfIn PDF document text
    • https://prokoncept.hu/admin/blogfck/image/file/pibumi.pdfIn PDF document text
    • http://pamat.ro/UserFiles/file/rabufova.pdfIn PDF document text
    • https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/10s6vq17i3r7vdgbkl2g19h4p1/20839765943.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/niidgk4e38vic6fmkpg3488b8p/55093493062.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be01af69ef8---1179677389.pdfIn PDF document text
    • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/58aaf95812bcb70918b148628367a82f/27593261823.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b227ceb95e4---wedivunovuvamewopejobomuv.pdfIn PDF document text
    • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098ac823c288---xurugolubemarobuzigeluduf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70E 5712 bytes
SHA-256: 94c309dd12b80ec68858683a0040f1f254122239fbfad7d9d53c390787bfbff5

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