Malicious PDF — malware analysis report

Static analysis result for SHA-256 831677c5cd54b027…

MALICIOUS

PDF

40.9 KB Created: 2021-06-30 08:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 001b17e5ff37a997492aa6aa7995a713 SHA-1: 69754a617a4bc85f8f2312cf4124cac2de2be110 SHA-256: 831677c5cd54b0270ea879499c48fb1bf611f08efc3877aaa413211facac7902
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains an image-based lure and numerous links pointing to external websites, many of which appear to be compromised CMS uploads. The primary URL suggests a lure for downloading cracked software, indicating a likely attempt to deliver malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8834

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://philabc.ru/uplcv?utm_term=windows+10+pro+crack+iso+file+download PDF link annotation
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/q30upngbr76i9svtef5f17b35o/77764575572.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/deaa04064e6d7093c5a6537589aeaeab/37615437190.pdfIn PDF document text
    • https://autoroman-service.ro/imagini_ws/detuj.pdfIn PDF document text
    • https://warungmimpishio.com/contents//files/pokodaxejigafaniketunozov.pdfIn PDF document text
    • http://englandmatchshirts.com/assets/file/89264632070.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bbdaa367b4d---87978006443.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d3b731ff8---70971026839.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083031c81789---11769152910.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607af61ad7fee---vibep.pdfIn PDF document text
    • http://sllight.ru/design/img/upload/file/tiguwesibar.pdfIn PDF document text
    • http://circuitoinsulargc.com/documentos/file/bexijubevibugateduwovoji.pdfIn PDF document text
    • https://ratsimae.eemedia/contents/file/zoxowuresu.pdfIn PDF document text
    • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091ac072126e---92348469131.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b45525e02be---77997356768.pdfIn PDF document text
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f850d52de1---fupudegu.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b200a46ca58---13074548933.pdfIn PDF document text
    • http://vishwkarmaenterprises.com/webroot/img/userfiles/files/64980088503.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/7bdf705c978c79339415efc34eacc535/pejimimeguvan.pdfIn PDF document text
    • https://rosedreamholidayhomes.com/ckfinder/userfiles/files/53870888474.pdfIn PDF document text
    • http://chayka-svg.ru/files/silixiji.pdfIn PDF document text
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/8b39aafd0fdac5d9da827db299a5150c/wimagepebegajedusugegixe.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607307641a631---33180286870.pdfIn PDF document text

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