Malicious PDF — malware analysis report

Static analysis result for SHA-256 b73001a071c4eaa2…

MALICIOUS

PDF

63.6 KB Created: 2021-07-25 10:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 0f46ef39c25a83f51ecd91aa76dc6c14 SHA-1: ee456d9f5712d1d35ca7a3db75ebee1406b7fa86 SHA-256: b73001a071c4eaa28c2f514818d1044704fead7cc4f07b96063ddef20f080728
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to websites hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. The presence of external URIs and link farm heuristics points towards a tactic of distributing malicious content through indirect links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6379

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://clubmaniacr.com/campannas/file/50841555104.pdf In PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160906e4722c58---fajisizurekakode.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/13f651c478a3a19414ff5910a9d33d62/zimuku.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094bff4919ba---surivizawusizep.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c40d1c984---50576742671.pdfIn PDF document text
    • http://hasici-pristroje-eshop.cz/files/file/kalipizaxesigejijibibini.pdfIn PDF document text
    • http://isystem.hu/ckfinder/userfiles/files/bogovas.pdfIn PDF document text
    • http://wenxuezj.com/images/File/mubogopozirejowupike.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e15948e95e---2239797166.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/59d2714650864cbbe4ccc54d7bdc2e00/fozadomikifajojozodilomom.pdfIn PDF document text
    • http://scandirent-new.ru/uploads/assets/file/bekizudeminudorugejok.pdfIn PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/5d54af30e61a584783e9703af7e1f451/mukalovukevapuzuv.pdfIn PDF document text
    • http://2015.letnifestiwal.pl/ckfinder/userfiles/files/86953368489.pdfIn PDF document text
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/43dfda9ce67c5d4d00a39d6a62eeb33c/88141716391.pdfIn PDF document text
    • http://bettynblue.com/upload/fck_img/20210702/file/24575854029.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/9bf25da7199c2bbd3405cf203de94e60/fuladumoxabuvafelobu.pdfIn PDF document text
    • http://moristas.com/userfiles/files/41398205308.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/2ln2ofg2vt98bpr6n85a5pl40g/24699775473.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/d5df7bf051f10b1559b3ff9aadc7ad51/vovezobekawifinivijep.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/lepodanafogatanejurapam.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/1a9bda93c25df92607688591097b52ad/35703611845.pdfIn PDF document text
    • http://themadthinker.com/temp/vinney/HTML/userfiles/file/zarezesipoto.pdfIn PDF document text
    • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b10fa9d8a89---1410478714.pdfIn PDF document text
    • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/26337fadd329d656513488d374c1a277/bezuvebepujetikozifebov.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=peliculas+completas+en+espa%C3%B1ol+latino+para+ni%C3%B1os+de+disney+pixar+gratisPDF link annotation

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