Malicious PDF — malware analysis report

Static analysis result for SHA-256 191dcc7032dba8ca…

MALICIOUS

PDF

90.6 KB Created: 2021-08-25 04:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: c036ca6fee9bb5e742394786f5603c4c SHA-1: 887176975c892a16f8b7b71e8fc49ba5dc7423bb SHA-256: 191dcc7032dba8caba874fd02a078644e76616df922b4454f984590cdc876e44
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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://drafthe.ru/uplcv?utm_term=example+sentence+of+adverb+of+degree PDF link annotation
    • http://armiikrajowej36.pl/public/upload/ckfinder//userfiles/files/sizobikozakefited.pdfIn PDF document text
    • http://inhome360.ru/admin/ckfinder/userfiles/files/31121608491.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/1f25f03c0beecf5109453e3b6b650d57/zoguligadivojuwekope.pdfIn PDF document text
    • http://scpt.it/userfiles/files/foxatubewi.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608059e813ce0---90048486784.pdfIn PDF document text
    • http://kibbkw.com/uploads/file/73923162557.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/144392a15ae5fed4af798f0e17b0801c/vagara.pdfIn PDF document text
    • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/fc96bc07e5067871ba4cb4cdb58da2fc/25521312039.pdfIn PDF document text
    • https://agrimal.pl/userfiles/file/voketimubofonowu.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/822d9dc65c8281c4f487a4590b67db26/sufamobijagipibipovu.pdfIn PDF document text
    • http://lawyergz.net//uploadfile/files/69050151215.pdfIn PDF document text
    • http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77265055244.pdfIn PDF document text
    • http://topas.lt/userfiles/file/siwamotaz.pdfIn PDF document text
    • http://0-50.ru/userfiles/file/timilivogidafo.pdfIn PDF document text
    • http://uss100.com/clients/5/56/562308f4da1da23328cfd9e5c9f3e68f/File/sazetuzegamutabifilubigok.pdfIn PDF document text
    • http://accronline.com/userfiles/file/61601826784.pdfIn PDF document text
    • http://cableesmaltado.com/d/files/87418211806.pdfIn PDF document text
    • https://vatlieutaphu.com/upload/files/samenegopazaz.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a3042e1b372---tegebazorupimemepibasigem.pdfIn PDF document text
    • https://easypayindia.in/userfiles/file/vamufajuduromixefep.pdfIn PDF document text
    • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/b736c2492e70fdc5b7a58b449e4e970d/72539914465.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de17d1212da---40652576417.pdfIn PDF document text
    • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/37929150082.pdfIn PDF document text
    • https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce71730fd8---miliresifuji.pdfIn PDF document text
    • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/3bcc5dd9ff0009d5b9979038212d806d/92674019612.pdfIn PDF document text
    • http://savaksangida.com/resimler/files/padikofugafulujegu.pdfIn PDF document text
    • http://ajivikafinance.com/userfiles/file/74134259567.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD69 17272 bytes
SHA-256: 5df35c0249045aa50b6628c3f4d871fd83cde9204d0a811a5eb7c0868113f36c
font_01_sfnt_off00012a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A02 11164 bytes
SHA-256: 1009362732954343939a4f7280cd4cdb9dc5dfdce854cf6a2a6c22c5790f660d
font_02_sfnt_off000143bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1