Malicious PDF — malware analysis report

Static analysis result for SHA-256 78292fb7b4d81529…

MALICIOUS

PDF

79.2 KB Created: 2021-08-15 03:25:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: ea622cc5749603b8a3cac7811a887f8d SHA-1: be397ae0d0f54d460f26f365201370fb08b1ee4a SHA-256: 78292fb7b4d81529350274d5d9840fde10dae96a035a74648de5ab9609c2a10b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/890msjam1nnk1b70ln35r7ag8r/siliwofuwado.pdf In PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609825183247d---51792119099.pdfIn PDF document text
    • http://ssatripoli.org/userfiles/file/51879872071.pdfIn PDF document text
    • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/95006152185.pdfIn PDF document text
    • http://alphabodysupplements.com/newerac2c/userfiles/file/48905796235.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/2b6f3aa443506324ccf268f012085d2f/23377975749.pdfIn PDF document text
    • https://biserica-izvorul-tamaduirii.ro/files/90284455454.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/fd7633c3744dcbde72a27a2a732ced0f/venubazojelived.pdfIn PDF document text
    • http://linza-market.ru/upload/files/pitokufukudivutigedivupav.pdfIn PDF document text
    • http://asesorgubernamental.com/images/file/90362422868.pdfIn PDF document text
    • https://wfca-czech.cz/temp/userfiles/files/88177313533.pdfIn PDF document text
    • https://bhsbeacon.com/FCKeditor/file/45125299542.pdfIn PDF document text
    • https://okazdedziecko.pl/_files/Media/file/12249579727.pdfIn PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/2954124513.pdfIn PDF document text
    • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160da617814262---jukevojetejesilopuzugukuv.pdfIn PDF document text
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/09f65f96b23916a5d0e390b142a2a45e/wuwaju.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609bec810586b---67358211048.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0b63f74d54fe0e4a6068b734cf0ae7f1/tewomal.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/13715696678.pdfIn PDF document text
    • http://myshopekerala.com/userfiles/file/papowofipikomitulutugig.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=bsc+agriculture+1st+semester+books+pdfPDF 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_off0000ce79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE79 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e68b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68B 16764 bytes
SHA-256: 5afc47cfa0309ffb3d27c18899bd04a5ecb86cfcf66e6435a40c71f2a7d67ef2
font_02_sfnt_off0001128f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1128F 11296 bytes
SHA-256: d1617dd8813d00bc1a5a3261603b07696c06adf7cef283c45d6bbfe25813d727