Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab36482976b3a1cc…

MALICIOUS

PDF

55.4 KB Created: 2021-07-16 13:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 142ded2dc39f5e0dd827191f9e19d27e SHA-1: c313624d7fb97380dc5592748d8b24dcf2a6c244 SHA-256: ab36482976b3a1cc11ebcef1da32ad6602bd16aca3dd238a19bb0963a548ace7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting an attempt to distribute malicious content or phish users. The embedded URLs are likely used to redirect victims to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5455

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://fiorenzuolatrack.it/userfiles/files/woluzim.pdf In PDF document text
    • http://guowangcable.com/d/files/60725346443.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1606f63cfb07bb---94113847436.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adcceb0b2f1---linonakaxumofigoxosulase.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/06d6e3a202cb137d5fdfd037f1fa88cb/bifafivarejobakes.pdfIn PDF document text
    • http://chiangmai-clean.com/user_img/files/nariwakiso.pdfIn PDF document text
    • https://tailormade-sales-marketing.com/userfiles/file/53573599158.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c22d6a2b37e---retefode.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160808c5158ea9---46333087319.pdfIn PDF document text
    • https://lasanisports.com/files/tifivukomunipabu.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c566c1797d3---50877994328.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/60740428048.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077a952a138a---jovatidilusol.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609239e73cb51---60014795385.pdfIn PDF document text
    • http://zkojicin.cz/userfiles/file/duzip.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/rabakomozakaguxarizagudix.pdfIn PDF document text
    • http://tilestone-pools.com/i/File/tiwutuvokofezapubojarusu.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a944d10a0dd---mozezegadafuwem.pdfIn PDF document text
    • http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/folubibepu.pdfIn PDF document text
    • http://jpbullies.com/clients/2/2c/2c827f09d77a589c2c5c7da8c033a3f4/File/sotos.pdfIn PDF document text
    • https://bataretak.com/img/files/file/liretemo.pdfIn PDF document text
    • http://atol-res.pl/uploads/file/raxozugexuzafaxugexolij.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/duhn5t9r4m53sokep720pm5agj/35939821813.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=mac+keeps+booting+into+recovery+modePDF link annotation

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