Malicious PDF — malware analysis report

Static analysis result for SHA-256 17baae6df2b5e924…

MALICIOUS

PDF

45.7 KB Created: 2021-09-28 20:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 41d29a1e706999ad404232f322cac013 SHA-1: f0e22a4cfdaaafccf4230e742f63e6ccb1d36e67 SHA-256: 17baae6df2b5e924516558809f7712b3d24b0a8a25217573b87f7753e15f040e
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF employs a screenshot lure, presenting itself as an image to entice user interaction. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier further support its malicious nature, indicating it likely serves as a delivery mechanism for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6210

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 45 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://sinners-party.de/media/file/63225536537.pdf
    • https://hse.tw/upload/file/7122986504.pdf
    • https://castilloexterior.net/ckfinder/userfiles/files/37152558212.pdf
    • https://fanaf.org/article_ressources/file/26453417890.pdf
    • http://dongtienlamnghiep.com/upload/file/xebojadofezamozizubizagig.pdf
    • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/987ctflqsakk7i795o9kn8u9bg/melakogorowik.pdf
    • http://logenamerica.com/userfiles/file/35865743115.pdf
    • https://geneticapanama.com/userfiles/file/lugadisitumavuzirimajufu.pdf
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135159a2ebbe---55799097782.pdf
    • https://faresaldabbous.com/uploads/file/rasagibuj.pdf
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1613348659eb44---tomuteven.pdf
    • http://pierrevillers.fr/mairie_files/file/fojanajadadogoketevuseke.pdf
    • https://projekt-lesen.de/userfiles/file/7904171582.pdf
    • http://worshipedia.mobi/sites/default/files/file/56945530878.pdf
    • http://b40555.handyfriendship.com/upload/files/gikanijinojaw.pdf
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16140e60bbde6e---78172589572.pdf
    • http://enotecagaribaldi.it/userfiles/files/32935888065.pdf
    • http://ros-grad.ru/fck_editor_files/files/zemasusuvulowogogi.pdf
    • https://vespaclubcagliari.com/userfiles/file/zajadajapawapo.pdf
    • http://bancasemecanino.com/userfiles/files/2100744028.pdf
    • http://fundacjahfg.pl/upload/file/gafekatubamotabufipevoso.pdf
    • http://aven.su/userfiles/file/timezilonolabemek.pdf
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413e2270c8d---93603961305.pdf
    • http://networkinglikepro.com/ckfinder/userfiles/files/lawemafukanazedepuk.pdf
    • http://ordineveterinarivenezia.eu/userfiles/files/fajugigujosugotowu.pdf
    • https://ehotelgateway.com/bot/ckfinder/uf/files/99629643162.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=notification+no+sound+android

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