Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78e1d603a6fae90…

MALICIOUS

PDF

69.1 KB Created: 2021-09-02 18:37:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: bc3bb3594c5ab0ac9e1a0824d201fe72 SHA-1: a84b1e777d81ec0ca8d99cb79b89ebb136a2fd03 SHA-256: e78e1d603a6fae902b9dc09536d0181ab28ab30e56d5f81cd785d5a837c38b90
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, presenting numerous URLs that point to potentially compromised websites or disposable hosting, likely to lure users into phishing or malware downloads. The presence of multiple links on disposable hosting and the use of WordPress upload directories further support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6518

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 http://aroma-es.red/yamituki-n/uploads/files/nalirodo.pdf In PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/ter5tqakd3p3sgdgh01bj4kjq2/reduzizozuzafotaze.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/c76ae48680da359156cdb4451762e992/23682616545.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ad1fde999---sedosi.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/e5tbsgik0ard00qsf0i8n6lq3r/zozifur.pdfIn PDF document text
    • https://numberonerevolution.it/file/lexuxumapejibazusalisod.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877ca0e88a0---sudopadovurinifewenujulon.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7f8c635aa---dijozilazotopidoj.pdfIn PDF document text
    • https://detskeihriska.eu/ckfinder/userfiles/files/tefipusipinewup.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/7rutuaur3njbdek2ejjrehfgsn/71515184026.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/b5e0adb6021f05e7553b59a069baa5ee/zovenom.pdfIn PDF document text
    • http://archi1919.com/smlclub-files/file/71415775885.pdfIn PDF document text
    • https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/c2h4fe2rigt4edr88c7dlr7o14/97492640872.pdfIn PDF document text
    • https://www.puskinas.lt/ckfinder/userfiles/files/24280105719.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/0baee0a8eefb1f33eb04f820d772dd89/81877679328.pdfIn PDF document text
    • https://powerliteaac.com/userfiles/file/63779619470.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160877645b8f28---43656940803.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/files/80478974034.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb5a02b0d5---29810812469.pdfIn PDF document text
    • https://dailyiat.com/html_upload/file/dofugikusitatawitowu.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8ee15fb85---81309629010.pdfIn PDF document text
    • http://clubselectionvoyages.com/images/file/39393424425.pdfIn PDF document text
    • http://fazekaskozpont.hu/images/upload/file/54702996712.pdfIn PDF document text
    • http://otvorene-srdce.sk/userfiles/file/liposonir.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=snap+on+mt2500+scanner+manualPDF link annotation

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