Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb11c74205b8ca30…

MALICIOUS

PDF

59.6 KB Created: 2021-09-17 14:02:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: aed9a6bbc178153de17df301e70383e9 SHA-1: 1afde264943b536b8a858624b5d58910806c64bf SHA-256: eb11c74205b8ca30f817f1fdf679271507ac9c049ecf5622a0dfdf71d1b32d09
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. It contains a link farm pointing to various domains, including compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malware. The presence of external URIs and a link farm indicates a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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://smidgel.ru/uplcv?utm_term=kiss2+apk+download PDF link annotation
    • https://xn--80aaa1arbfjoe3bzh.xn--p1ai/data/files/26576515013.pdfIn PDF document text
    • http://mobilahomedesign.com/userfiles/files/54668266072.pdfIn PDF document text
    • http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/6503322234.pdfIn PDF document text
    • http://mertcelikkapi.com/userfiles/file/78037775642.pdfIn PDF document text
    • http://suurelepa.ee/data/file/62299887733.pdfIn PDF document text
    • https://dennismaloney.ca/upload/editor/file/kowutejuvuzujetodid.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/monudopujojigilasegerike.pdfIn PDF document text
    • https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/luzixam.pdfIn PDF document text
    • http://diakmelo.hu/ckfinder/userfiles/files/49509351510.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/64723439328.pdfIn PDF document text
    • http://nousgarage.com/userfiles/file/visufav.pdfIn PDF document text
    • http://chatyzvule.cz/uploads/gilobadisojofamizuju.pdfIn PDF document text
    • http://phutungquanghieu.com/app/webroot/files/ckfinder/files/65369013579.pdfIn PDF document text
    • https://tasleemdubai.com/userfiles/files/85003009981.pdfIn PDF document text
    • http://robwalker.net/fckupload/file/tobasodekowiludagupu.pdfIn PDF document text
    • https://petala.gr/userfiles/file/livarijipazeko.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134795d318bf---84519477988.pdfIn PDF document text
    • https://dacinsara.ro/fckfiles/file/68744096119.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/09cdd522062ce7da5ad9757cae712452/11214677380.pdfIn PDF document text
    • https://aviseco.ro/userfiles/file/bajanisulufadolipi.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613997ab58fa3---84040863055.pdfIn PDF document text
    • http://abwlargo.com/uploads/files/18259928443.pdfIn PDF document text
    • https://groupburuemas2.com/contents/files/zixosaromoxirasokera.pdfIn PDF document text
    • https://hotararicedo.ro/files/files/bisif.pdfIn PDF document text
    • http://smartwealthhk.com/userfiles/18728446167.pdfIn PDF document text

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