Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db05c356e5a3777…

MALICIOUS

PDF

42.4 KB Created: 2021-07-04 05:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 334f041d12f2ffb4ad4d3dad31db020d SHA-1: 460298a356dcc9c7e43062a0a723591b3fff0a5d SHA-256: 2db05c356e5a37774ab86510fbc486bc92fb986bd935042c44f621d12cfb7c4e
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file exhibits characteristics of a phishing lure, including being image-heavy with minimal text content and containing numerous links to external websites. Several heuristics indicate that these links point to compromised CMS uploads, suggesting an attempt to host malicious content or redirect users to phishing sites. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5956

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16074d63a392c8---duwivek.pdf In PDF document text
    • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad6296a91f9---godeduwosikojigujabagun.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/dawasuvukudizofixexebe.pdfIn PDF document text
    • https://gachbinhduong.com/upload/file/dovogusesu.pdfIn PDF document text
    • http://skomi.ru/img/files/file/12041137166.pdfIn PDF document text
    • http://agriturismolionsfarm.it/userfiles/files/70943855215.pdfIn PDF document text
    • http://pr-jam.com/ckfinder/userfiles/files/lezenalexobexolagoled.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5eb74b2471---bunukos.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160879419438aa---xakajos.pdfIn PDF document text
    • https://pharma-tools.eu/galeria/file/51739156877.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f600c3aa0e---jodotok.pdfIn PDF document text
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/cda2f64bdab40b98cbfa63b90b5d4e5d/renesopemukorulugivaw.pdfIn PDF document text
    • http://memphiscentral1969.com/clients/865565/File/76554029038.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16088c82818161---26328171079.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b8a4718ae7b---jafenadekubolenof.pdfIn PDF document text
    • https://ildiko-szepsegszalon.hu/userfiles/file/zosedudis.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/fbeda608504985c755b3afbe3d8a0a6a/bubuz.pdfIn PDF document text
    • http://thienlongadv.com/upload/files/74531710676.pdfIn PDF document text
    • https://srldirect.com/ckfinder/userfiles/files/18298918900.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/ac45262c1f34e5f635e987d347cb056f/46449651680.pdfIn PDF document text
    • https://prokoncept.hu/admin/blogfck/image/file/33408045962.pdfIn PDF document text
    • https://strategieb2b.com/userfiles/file/nipapufosumamizozopiri.pdfIn PDF document text
    • http://studiotecnicoprato.eu/userfiles/files/98297890722.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aba1d4144e1---1764422494.pdfIn PDF document text
    • https://unibel.pl/pliki/upload/file/dozadani.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097733f26554---lodobakipepevixuvipowajo.pdfIn PDF document text
    • http://valsadindustries.com/userfiles/file/jololobumuzejurutawude.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=the+liberal+tradition+in+america+pdfPDF link annotation

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