Malicious PDF — malware analysis report

Static analysis result for SHA-256 19178966dba6b109…

MALICIOUS

PDF

98.6 KB Created: 2021-07-22 08:02:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 17d88fe6acb51a32eaf0f24fe73040f7 SHA-1: 15a9225e10c5c3966dd479db270e45a3272576e3 SHA-256: 19178966dba6b10976e90bf70e3830a1b875ba952fe028746513c9b12615f27c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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
  • 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
  • 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 http://101-games.ru/images/uploads/files/2806031410.pdf In PDF document text
    • https://studiovizia.com/webroot/img/content/files/69222261777.pdfIn PDF document text
    • https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/53181bd7123ab9313a515dabc526bd60/73233864772.pdfIn PDF document text
    • http://susanirvine.com/clients/82887/File/zavazevigezesazuvopalaw.pdfIn PDF document text
    • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076fd25bd9ef---nevofu.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608a3385d7f67---36155101365.pdfIn PDF document text
    • http://nakajima-ya.com/upload/save_image/files/gegiwexenumutezuzafageb.pdfIn PDF document text
    • https://renault-service.com/userfiles/jowon.pdfIn PDF document text
    • http://therealmccoyfamilyreunion.com/clients/f/f9/f9ea119420dddc0cc5ac7622830b9f68/File/sizolale.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d0c089949b1---kotoxolasilimenuzire.pdfIn PDF document text
    • http://quaint-house.com/39688312838.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/97554619647.pdfIn PDF document text
    • https://greffedecheveux.center/upload/ckfinder/files/17137843717.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/da857ofgr9uqpehejbslh35ln6/darakabutesubiruj.pdfIn PDF document text
    • http://tbm-mova.by/images_from_html_editor/file/21705445735.pdfIn PDF document text
    • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/d7gqhn15p4g3vgu813lc5per7s/32630250741.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9c925f21a---33332264768.pdfIn PDF document text
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b378842792a---63618020716.pdfIn PDF document text
    • https://hefcom-hydraulics.com/ckfinder/userfiles/files/xonigo.pdfIn PDF document text
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16091e4dc9b884---libixibo.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1606d16ee1efa6---radomezanopujus.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=repentance+in+romansPDF 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_off0001211f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1211F 16488 bytes
SHA-256: 7040770ef026b6b395111318246741ba60f3274e5394f1f37f1e88da4395b0dd
font_01_sfnt_off00014be7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14BE7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000163fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x163FE 10536 bytes
SHA-256: bdc1477fcb59ecbb1c4aca90bfd5b72c692c911a6027c3ffda92bb3244b5f912