Malicious PDF — malware analysis report

Static analysis result for SHA-256 e667921401a99d7b…

MALICIOUS

PDF

58.1 KB Created: 2021-07-05 15:51:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 48bf55606be902d90ea9dc0f45b56325 SHA-1: de28c0e401cafb65716b60e5435880f5d4a44564 SHA-256: e667921401a99d7b76d39f7336c7d60e46faf11f94fb1afdeba4318f4e7817bf
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a phishing lure. It contains numerous external links, many pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content or download further payloads. The PDF's structure, being image-heavy with minimal text, further supports its use as a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5422

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 58 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 https://wastran.ru/uplcv?utm_term=bodleian+health+care+libraries
    • https://cape-electronics.com/media/file/12198890823.pdf
    • https://telenovella-bg.com/files/76280961876.pdf
    • http://synerfreight.com/syner_upload/images/files/neduj.pdf
    • http://capital96.com/userfiles/file/12021543764.pdf
    • http://ebslang.net/_UploadFile/Images/file/mukoziwagaxediwoneve.pdf
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a18c7a55d36---48558452740.pdf
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1e6d31e03d---bodumanewozipifeko.pdf
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/460468f3824cbb2efeab96624734b0fa/28904400050.pdf
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a91bb03bdff---gupafevosi.pdf
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b904fed7a12.pdf
    • https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608029c664434---xovumajetebobumuxogumixup.pdf
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5c00ff1b2d---44600118396.pdf
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082de93043a7---karivalaw.pdf
    • https://angkoronetour.com/userfiles/file/21000058157.pdf
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609416b183c82---roruwusigap.pdf
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1137a49fd---90459974460.pdf
    • https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16079bf93bea87---3277051381.pdf
    • http://cogersquest.com/clients/f/f6/f6194b381802d71b6842d6160e8859b1/File/68283295848.pdf
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b87d7a4aa9a---14957695861.pdf
    • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3aae66aae---83669185166.pdf
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/41631a7df0309d8658d8d16485a03c7a/nusixenetejivujexorexe.pdf
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/sfdumgn6jdpsnp47721p9sarrq/nafam.pdf
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94962d1af8---runowagetanaxisavemalulu.pdf

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