Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0efee69729d695f…

MALICIOUS

PDF

83.1 KB Created: 2021-09-16 18:13:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 3c57c43346187f4be84d3052f4d54917 SHA-1: dc649813720a6d450682b4ab944ef65c679d5718 SHA-256: e0efee69729d695f2339c324d7df357fd2865e5b08c4ceef244dc659a029ff25
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a full-page image designed to obscure clickable links, a common tactic to redirect users to malicious websites. The document body is heavily obfuscated, but the presence of numerous external URIs, many pointing to compromised CMS uploads and disposable hosting, strongly suggests an attempt to distribute further malicious content or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5616

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 83 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://mintaialuminum.com/d/files/woduloxagenotu.pdf
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16133d62953edf---leminelupewelewutogarumif.pdf
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141e5fb2f057---vulukebaledojubewakesozi.pdf
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/161430b60eb6c7---narosiliwimezipimonufol.pdf
    • http://paykaaluminiya.ru/ckfinder/userfiles/files/72105121090.pdf
    • http://dragoniresorts.com/userfiles/30008085291.pdf
    • http://thibangoto.com/app/webroot/uploads/files/51015636776.pdf
    • http://qqwandai.com/uploadfile/file/nofodefaxeruvowelabunoba.pdf
    • http://rzn-house.ru/upload/file/25473848220.pdf
    • http://101balkon.ru/upload/files/80598077856.pdf
    • https://digitaluzaktanegitim.com/calisma2/files/uploads/36946465171.pdf
    • http://ukonlinedirect.com/userfiles/files/jagixivas.pdf
    • http://tcsklife.com/filespath/files/20210906031953.pdf
    • http://zulassung4you.de/bilder/file/25972551717.pdf
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16139d0f9d8e50---gozasonofolokebun.pdf
    • http://anshan56.cn/userfiles/file/16305844621970637385.pdf
    • http://asesorgubernamental.com/images/file/nepaxopebokuligoxederi.pdf
    • https://securitydm.com/slicice/file/24032306262.pdf
    • http://ordineveterinarivenezia.eu/userfiles/files/mawewot.pdf
    • http://www.jindatunnel.com/up_files/file/jopuvujodoporukew.pdf
    • http://k12kos.com/ckfinder/userfiles/files/58182223824.pdf
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135729a7bf06---sajumebiduk.pdf
    • https://duvanco.be/docs/files/sibatasekugitapazor.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=paranoid+android+guitar+cover

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