Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d443fa7250974d5…

MALICIOUS

PDF

58.1 KB Created: 2021-07-06 03:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 251678d8ec4e2c035ade0fd237dcb6b5 SHA-1: 2026d7a8740412ecf9708dc81f22cc4c35d19d95 SHA-256: 6d443fa7250974d5914af384c2ff2bafda197680ae4487327f2e11029d0b16e1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains numerous embedded URLs, many of which point to compromised websites or link farms. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing further malware. The file's structure suggests it's designed to lure users into clicking through to potentially harmful destinations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6159

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://anukulagrotech.com/ci/userfiles/files/19347500399.pdf In PDF document text
    • https://atcotourismtravel.com/userfiles/file/pexataniwumeje.pdfIn PDF document text
    • https://marmarases.com/upload/ckfinder/files/fujuzogijexozanukaronebin.pdfIn PDF document text
    • https://dentalrud.com/userfiles/file/rovusomazenokuzo.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/fc603e9a829e096c0bb2b7b5e709f465/loleporenuvafejediza.pdfIn PDF document text
    • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/875a5fde1f09e46cd772c11d3590c98c/26314162054.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160978f34f39bc---14787181348.pdfIn PDF document text
    • https://topupdana.com/contents//files/kafogofepoxamexefanemuja.pdfIn PDF document text
    • http://vitanova-cattery.com/upload/file/fagobupegaw.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/if3d3lqjg97iv6qb9s0rd9aae3/xojerisusudo.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c16eed92ad---lagudujibus.pdfIn PDF document text
    • https://sport-jicin.cz/dokumenty/buzorofixozozugim.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9bc0dcf9d---25401390398.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/soguv.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/60a6499ea741897de496ab12d6998228/90091754669.pdfIn PDF document text
    • http://diagnosticaedilizia.com/userfiles/files/mexibajagabejifegiwev.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/c5e3792308e5c6afa2d5ca687cda382a/15899960115.pdfIn PDF document text
    • https://educhina.mn/editor/files/zedisab.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebc00a9205---75816899889.pdfIn PDF document text
    • https://emilline.dk/ckfinder/userfiles/files/75114015430.pdfIn PDF document text
    • http://oticonshop.net/ckfinder/userfiles/files/39532169684.pdfIn PDF document text
    • https://rieker-consulting.eu/files/file/veselikuxolepas.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=diet+plan+after+c+section+deliveryPDF link annotation

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