Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee4f85b623cc6c6c…

MALICIOUS

PDF

54.6 KB Created: 2021-09-11 17:59:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 059778bc4aacdbda723b7603ee13eb39 SHA-1: 00a972651c5033b494bb2aef2007e04c2ad23916 SHA-256: ee4f85b623cc6c6cdf3b175b602388072d22f2c802e29b71cc8bb8e7f72ecc1e
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as a phishing lure due to its small size and image-heavy content, typical of a screenshot designed to trick users into clicking embedded links. Multiple heuristics indicate it functions as a link farm, directing users to various compromised CMS upload storage locations and disposable hosting sites. The ClamAV detection further supports its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3186

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 54 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://ping-property.com/user_img/files/37929754939.pdf
    • http://abwingsbuffalo.com/uploads/files/rafenilupezuri.pdf
    • http://ewhamd.net/upFiles/ckeditor/files/widagugimovelosi.pdf
    • http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.net/ckfinder/userfiles/files/83798016482.pdf
    • https://alternatifhirdavat.com/upload/ckfinder/files/14668690270.pdf
    • https://kalashad.com/userfiles/file/wejane.pdf
    • http://yossy.biz/userfiles/file/sanedubilegope.pdf
    • http://trungnguyenjsc.vn/uploads/image/files/narejuregeranumuxetik.pdf
    • http://www.prodomasa.com/ckfinder/userfiles/files/11432809966.pdf
    • https://abss.pt/userfiles/file/fogenufovuxax.pdf
    • https://dm288.com/slicice/file/77486534262.pdf
    • https://ewdel.cz/ckfinder/userfiles/files/30307713117.pdf
    • http://dataction.org/demo/dataction/media/87088223298.pdf
    • https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/4806570496.pdf
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/fb0uecfbvlkl9c88rfug2568pe/66389460430.pdf
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161369139644cd---97705655196.pdf
    • http://urs-certification.com/gais/image/file/32525615770.pdf
    • http://townofwinslowin.com/flash/townofwinslowin.com/file/tufulonizekupo.pdf
    • http://ahzycw.com/upload_fck/file/2021-9-1/20210901135807912085.pdf
    • https://petala.gr/userfiles/file/72909194912.pdf
    • http://digitalqwerty.com/ckfinder/userfiles/files/towavifasiwaf.pdf
    • http://omatsuri.kr/data/userfiles/files/38119925412.pdf
    • http://jewelry-shopping-city.com/uploads/files/202109100633233462.pdf
    • https://akrmedia.no/ckfinder/userfiles/files/8941175753.pdf
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/gg3r29id954jk0sistjd1634a6/25054646586.pdf
    • http://tuhocxuatnhapkhau.com/uploads/ckfinder/files/59546912091.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=convert+mp4+to+mp3+music

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