Malicious PDF — malware analysis report

Static analysis result for SHA-256 445c6abb177db9b3…

MALICIOUS

PDF

709.8 KB Created: 2021-08-18 00:38:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 017966bb0e691eba73ae25a874b66a15 SHA-1: 772f61361b60b51e9fe2e9435901b7cc455242a4 SHA-256: 445c6abb177db9b3af0ea747b11be7452d5c76a223ee3078559b21f65fe38441
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5459

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 lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/6cho5dpf74uac2t9jm677b1lk6/renix.pdf In PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/q7c1ab77b4l1o8lfs1it0k3sol/65771105515.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/p2qbpukt2rkus62mq3dbbfpvop/4599788118.pdfIn PDF document text
    • https://luyenthitoeic.info/userfiles/file/dedezun.pdfIn PDF document text
    • https://ozsersogutma.com/upload/files/ximewixunexabaw.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/1h4rki1ki28sln2b8mubpufnp6/96950217313.pdfIn PDF document text
    • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/derune.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/8c385037218902691c2adf5511c67b1f/96792674118.pdfIn PDF document text
    • https://foodphotoshop.com/userfiles/files/40860884312.pdfIn PDF document text
    • https://supermagnum-bg.com/userfiles/file/woxonuwegepetunifufenavu.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160778a570695e---87377962581.pdfIn PDF document text
    • http://webinaris.org/ckfinder/userfiles/publics/files/9290501827.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/177639b80ae2c138149799c886e3c3f6/16536306033.pdfIn PDF document text
    • https://yarpaket.ru/userfiles/file/vodowena.pdfIn PDF document text
    • http://medianet2000.net/amm_prod/image_news_popup/file/lowenebujolemonodike.pdfIn PDF document text
    • https://activepymes.com/pub/file/ledorovudowe.pdfIn PDF document text
    • https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/502a644b7cbc83d193a36e2c4948042c/vezojupuwaf.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/da438ee9694191f404c7503545e88447/vejirasad.pdfIn PDF document text
    • http://apartmaji-zunicmile.com/uporabnik/file/diwugujosesegovo.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/45bff5db3c82f3befbc6953bcdc76c5e/kogivajemoxafifejuzuvakod.pdfIn PDF document text
    • http://pizzeria-millemiglia.de/app/webroot/img/editor/file/mixolewovilibiw.pdfIn PDF document text
    • http://sloplast.com/userfiles/files/1825270985.pdfIn PDF document text
    • http://dambi.pl/userfiles/file/subosupo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=what+is+the+purpose+of+an+indirect+democracy+brainlyPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000a9a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9A4D 11232 bytes
SHA-256: 109783f6e32fb72c8335150a835aecde455fb3f1ebc295086ed56cd67ccf5f85
font_01_sfnt_off000ab444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB444 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000acc62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACC62 22700 bytes
SHA-256: 8318e42965206428b0320acb6273ffbc520721da1ad176171b9eaf46ceb77088