Malicious PDF — malware analysis report

Static analysis result for SHA-256 8279b5490386ae27…

MALICIOUS

PDF

61.2 KB Created: 2021-09-02 01:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: 1508f0b9c17c3747d44dd784e9e766d1 SHA-1: f6022224e24e05d870f50e566a0bb98904a8f5e0 SHA-256: 8279b5490386ae2718fcd903c30c6af98d4b75bf825a8d3564dc3dba4280775a
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting. The primary link, 'https://wastran.ru/uplcv?utm_term=kmspico+for+office+2016', suggests a lure for software piracy or activation tools. The presence of multiple links and the ClamAV detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8633

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://wastran.ru/uplcv?utm_term=kmspico+for+office+2016 In PDF document text
    • http://www.look4job.gr/images/_user_na/file/73353450086.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/7d999d096e51bed160a1e6a56b21371c/nixetinugoxifoguzoxux.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16083bcca08a7d---zivifaresikizokela.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9e43673ea---pigesowu.pdfIn PDF document text
    • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/f1ngsd6ipq39rhhrqj7p0nou41/vezonase.pdfIn PDF document text
    • http://kirakuramenandsushi.com/uploads/files/35865425529.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/7ae8a8e4f4396fc02fa9200a2b5963c6/lutivofu.pdfIn PDF document text
    • https://nazragame.com/calisma2/files/uploads/76685002979.pdfIn PDF document text
    • https://talleresimad.com/images/subidas/files/87349121975.pdfIn PDF document text
    • http://meghdoothsuzuki.com/uploads/3579960967.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/42b078e74352d0b0fc927e879db957f1/fuvumajegidaw.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5e3b3cef60---raketawogen.pdfIn PDF document text
    • http://hollandunitedreunion.com/clients/5/52/52f3fdf721cdccceb566e47094f1d9de/File/7196180581.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4180170ce9---mibarifu.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/vopep.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16123e933384f1---podixebugaronelukefikiw.pdfIn PDF document text
    • http://topspeed4wd.com/ckfinder/userfiles/files/21597020017.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/d76a7a263de84b892952109f09dbba64/xizetopijilezemitefuk.pdfIn PDF document text
    • http://indecomavo.pl/inc/50733980184.pdfIn PDF document text
    • https://chungcungoaigiao.vnpec.xyz/uploads/files/ratejalevivibedevut.pdfIn PDF document text
    • http://mountcalvary76.com/clients/9/90/9062e1c9f2360b2cedac6e2854879500/File/33584397479.pdfIn PDF document text
    • http://alnoorcity.com/userfiles/file/19079173245.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c144b4d090d---pabejebofozinaworakiwedu.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/97288771566.pdfIn PDF document text
    • http://www.sctiec.com/up_files/FCK/file/vugag.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/t42q40jfeact76f9pg3mlpadcf/76158423088.pdfIn PDF document text