Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b61bd5789092c48…

MALICIOUS

PDF

59.5 KB Created: 2021-06-25 19:31:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 2566d4901689fbfab0901051217910e4 SHA-1: 762f3029182338a6fddaf197b0a0955e4739ff56 SHA-256: 0b61bd5789092c48ecd8133adc2c52b11a597a2dbbe7bc98364eb1eee3c80f8b
124 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many of which point to compromised CMS upload storage. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests malicious intent, likely to lure users to phishing sites or download further malware. The presence of a link farm on disposable hosting further supports this assessment.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3715

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://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/d9968f43da8bc4accdfc7d4ccc1b19b8/66746304506.pdf In PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d59c85ea3---255499666.pdfIn PDF document text
    • https://shidoremicrosys.com/media/84884258655.pdfIn PDF document text
    • http://arablift.net/userfiles/file/jigobeliwogulavidikuk.pdfIn PDF document text
    • https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/1brh292ko4acr6likcv71asuf1/19431520571.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/sotagomujupofededupi.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/de561da7822074ceb5aacf8748db6ee5/koluwato.pdfIn PDF document text
    • http://drairtools.com/ckfinder/userfiles/files/76241774576.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/77848864439.pdfIn PDF document text
    • http://accronline.com/userfiles/file/xotubegu.pdfIn PDF document text
    • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ace66ac93f1---suwaw.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/bafa37add145559d72f1fb8ce257a827/27632140255.pdfIn PDF document text
    • https://red-adlay.com/upload/files/70938462491.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/ad6cb91ca1f0bdc91e89b19323a5c964/53145808218.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/c831bfaa0bd714b702a07d7bf273f839/43199625503.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d8c725be7---vupupobutaledexowosijev.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/f3cda2070a5434b8a10d0d50391dc39d/32867236349.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/c11c52b5d2df74cf7693b1bd854a509c/tefonugo.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad335021d08---19957132137.pdfIn PDF document text
    • https://jackyrouxmethode.com/userfiles/file/71993219609.pdfIn PDF document text
    • https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/65eee9599513b0c6c44278fd542f4462/90338141908.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0a4e117725---92170175810.pdfIn PDF document text
    • https://techson-cctv.com/upload/file/19495357553.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a28ff92ab97---74946766408.pdfIn PDF document text
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/5m4huolq133upqj5bpdvbr90tc/lofidojufiv.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/96181910d92e62a9a4255154c4130083/4883243410.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=the+power+within+druidPDF link annotation

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