Malicious PDF — malware analysis report

Static analysis result for SHA-256 963f8a12892467d3…

MALICIOUS

PDF

79.6 KB Created: 2021-07-16 02:04:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: d14e18f637cf9fc6d7df525379174fd8 SHA-1: 5d224c168c99cb26baa415fa83b4999788d76045 SHA-256: 963f8a12892467d33a8555a0c279ac163d85445b5815ae1c24d8848851decf06
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URIs pointing to compromised WordPress upload directories and other disposable domains. The primary purpose appears to be directing users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5366

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://laborke.ru/uplcv?utm_term=tapping+to+reduce+anxiety PDF link annotation
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d551e6058a5---78204450032.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16091e6525c211---sinarevodux.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/zokorelimadavumafus.pdfIn PDF document text
    • http://gtlmarinefuel.com/userfiles/file/9908295164.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/8d47gd5rhjrpd7e6epd13muv90/50205401743.pdfIn PDF document text
    • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/d2d69957f14f79ebf4e7a21a539db562/70764945458.pdfIn PDF document text
    • https://machnhaduong.com/images/uploads/files/sunoxe.pdfIn PDF document text
    • https://alexandrapanayotou.com/web/images/static/file/fixefawevijademuke.pdfIn PDF document text
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/40c5f95d131a4b99cb143e0d3e2db572/88606702963.pdfIn PDF document text
    • http://marcelponjee.nl/ponjeefiles/file/80442190657.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7381483f86---32008444466.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/64790454749.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160908b6b5eb49---terijijim.pdfIn PDF document text
    • https://horizontire.com/userfiles/file/ravedemeforobewikukuzatu.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/9er3i6nu9qqjtfq0n8a5qoqf1r/99478609254.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/s0epvilatibpmf50l1m2hire7c/gasubopif.pdfIn PDF document text
    • http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/33935093783.pdfIn PDF document text
    • http://emeraldoutback.com/clients/f/f6/f61299a274fa8fdb0c00f5b1ed511d42/File/makupemegikaninowinu.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/81799033799.pdfIn PDF document text
    • http://foodsafebox.com/ckfinder/userfiles/files/64785645611.pdfIn PDF document text
    • http://amuseonline.com/absite/userfiles/file/66253538483.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609812e6e185f---tigemig.pdfIn PDF document text
    • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/e3c73d8de382de38dc93889895ecdbd2/10147105424.pdfIn PDF document text
    • http://huiking.cn/uploads/file/240649084022.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/19147141694.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.