Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b62a50dbf68a56…

MALICIOUS

PDF

103.6 KB Created: 2021-08-20 20:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a5a53b0c9f3ba41045154b96be906316 SHA-1: 0617e8f72a9609679ecabcb297d44594baa59b63 SHA-256: 72b62a50dbf68a564b373151041555fcf322fa6ff9f59de85a68bb4cbd80b180
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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://psychanalyste-gard.fr/ckfinder/userfiles/files/matediwanomoxonakexi.pdf In PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee5aa1a3fb---berexupabapevomoxibodor.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105a7edc48f2---kujowilemagijasiwujumapo.pdfIn PDF document text
    • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/6i78eao0hcjq0d01guod08pnci/wimidakivodopu.pdfIn PDF document text
    • http://hud101.vn/webroot/img/posts/files/ralerepedatu.pdfIn PDF document text
    • http://sbsinternationalschool.org/sbsisnew/userfiles/file/93541394719.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd7c0253476---waxavapuxaduxip.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/901ddf72241538e5389d85b2bc92dea6/73492190055.pdfIn PDF document text
    • https://rimsball.com/ckfinder/userfiles/files/17478919018.pdfIn PDF document text
    • http://palyavalaszto.hu/teszt/upload/file/30675617628.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160756cd5e8fba---vizowu.pdfIn PDF document text
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/e3rsunsk2amrg44fi19ua1q2k5/94034529432.pdfIn PDF document text
    • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/8e4bcf550bbd95083e30edf108ec2bb3/77973733908.pdfIn PDF document text
    • http://techbis.pl/files/file/zapolew.pdfIn PDF document text
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/3940e1256d8c7d2d021781dc7c3d51c2/62853785621.pdfIn PDF document text
    • https://biblioteka-koneck.pl/ckfinder/userfiles/files/4099697756.pdfIn PDF document text
    • https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/vt4o1k9kmamres38dsvovnokf4/47835994184.pdfIn PDF document text
    • https://www.wappa.com.au/siteadmin/ckfinder/userfiles/files/39907669363.pdfIn PDF document text
    • http://archi1919.com/smlclub-files/file/polelizoturido.pdfIn PDF document text
    • http://tribo.kz/userfiles/File/xefimagonimoxejigamapigo.pdfIn PDF document text
    • http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/42divmdih92kdknebj2bj3ab1q/binezapodamudoto.pdfIn PDF document text
    • http://abpaluso.com/upload/file/jelup.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/26670859109.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=any+way+you+want+it+marching+band+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_off0001308d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1308D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001489f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1489F 17204 bytes
SHA-256: cf239f4bc83d8d8449ea3774ff51e843725b0840047d68e371df02273a4607f1
font_02_sfnt_off00017596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17596 11144 bytes
SHA-256: 832623a56dc59a7856db98ce1d8462f3c07c48b540df7219867a85378c5d2365