Malicious PDF — malware analysis report

Static analysis result for SHA-256 791d2f9554007d6a…

MALICIOUS

PDF

99.0 KB Created: 2021-07-14 08:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 3538834fe58763350976e30c6f7319a5 SHA-1: eb23c157441387f6a9981c930da31546ce6e13ab SHA-256: 791d2f9554007d6acc0340ce0757f7be8634f305ca37e6d13cb93e39eadfbf80
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The file's structure and the presence of external links indicate a likely phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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 https://garglob.ru/uplcv?utm_term=a+and+d+taxi PDF link annotation
    • http://allseasonsart.com/uploads/fck_uploads/file/rodikilaxuloputoxomav.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/f9ea7ee86b1d1941f1af8cd4061a9843/59044753450.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/af3a663b30b83b5f4d6854efc21349fe/46887046380.pdfIn PDF document text
    • https://amblamy.ee/upload/file/11901779291.pdfIn PDF document text
    • https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/ectdu992ada53bl33keir4ule2/suronabanexebomidi.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944ce3aac78---ponulodabaxigu.pdfIn PDF document text
    • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/25626898873.pdfIn PDF document text
    • http://starkhigh1972.com/clients/d/dd/dd83d6d7846a033806cdb512e10d7d7c/File/70066408722.pdfIn PDF document text
    • http://www.alexgis.com/siteuploads/editorimg/file/waredigorupabujupamawo.pdfIn PDF document text
    • https://open-call.fr/uploaded/files/14044320225.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b0f7792cbca---9795656993.pdfIn PDF document text
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/pip6ml4o8monsp8madlhafckhi/jegufodapidulotuwubanigaw.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/gd6eeo4610lmjgkifurcmi2br4/98020885505.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/viqm903alg4g6p5fgvg3mlg21c/fepado.pdfIn PDF document text
    • https://tidurmalam.com/contents//files/91374631543.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ac6f0e533---72290006991.pdfIn PDF document text
    • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160bf558426c48---92758926394.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/nesasuvurulupaz.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078164bdf712---wijezaniwosixanitalire.pdfIn PDF document text
    • http://gatewayhotelbangkok.com/upfile_hotel/files/20774975654.pdfIn PDF document text
    • http://araonline.hu/uploads/file/rutepogamatogilofipami.pdfIn PDF document text
    • https://pensiuneavlasin.ro/wp-content/plugins/super-forms/uploads/php/files/r99fgeq0adfejd7cip5u2str1k/jevogugakamul.pdfIn PDF document text
    • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12383 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B99 9756 bytes
SHA-256: d86b8b5dcdbd0868b036bfb0a23e264697a3198fcff2287049c051a745adac93
font_02_sfnt_off00015100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15100 17564 bytes
SHA-256: aaabcc811a8160acbbd895b019ef4c3d67b09802556e6b3fa37c2c848a005427

Open this report in the interactive analyzer, or submit your own file for analysis.