Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd71973c90b50698…

MALICIOUS

PDF

81.5 KB Created: 2021-08-08 11:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: a00958377122cdd3f5307d2545237150 SHA-1: 29e0c1c32d8f4c3895cdc8832ba829a8149a89e6 SHA-256: cd71973c90b50698c62a46f3ac25ce64e62cb89b307e9b2a9138baa9eb3dcedb
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://nomylo.ru/uplcv?utm_term=download+tenant+verification+form+faridabad PDF link annotation
    • http://www.sun-green.eu/ckfinder/userfiles/files/jibepebibuzomasog.pdfIn PDF document text
    • https://machnhaduong.com/images/uploads/files/57630270505.pdfIn PDF document text
    • https://carparts-fixture.com/file/file/vabumipuxazudiximanajize.pdfIn PDF document text
    • http://amandatravel.com/userfiles/file/kibana.pdfIn PDF document text
    • http://wangyiphk.com/userfiles/35795248077.pdfIn PDF document text
    • https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/16089da7b66bfb---pimawawidi.pdfIn PDF document text
    • http://myphamasia.net/upload/files/bopuxaje.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/bbba867cfde608a803490d9e11867994/91238427971.pdfIn PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2b17931c4---73425154606.pdfIn PDF document text
    • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/inmjqehitnamcjd49ifoh7jntm/51459564456.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/topatetimakenige.pdfIn PDF document text
    • http://cameradungphat.com/uploads/files/rufesodolukiwob.pdfIn PDF document text
    • http://gasthaus-steinkirchen.de/img/editor/file/63845272735.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1608687cb65960---kepebakovegu.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e1ed2673c---gajuj.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/c9025332e55d45f9a096f30ba65c44bd/pozukiko.pdfIn PDF document text
    • https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/870qacl9vk6j8hlqvuoqn9vqa8/sizubojuxoxukebekaji.pdfIn PDF document text
    • http://maginsaatmetal.com/resimlerfiles/68911552109.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bebe6f5445b---51601684185.pdfIn PDF document text
    • https://egca.fr/userfiles/file/29798840627.pdfIn PDF document text
    • http://drsuthichai.com/userfiles/files/4165025079.pdfIn PDF document text
    • https://aterhesseg.com/up_image/file/pevukuwa.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/nkovgp5dk2c8nf85it716k0445/43690749679.pdfIn PDF document text
    • https://marblobathware.com/app/webroot/img/files/2436566104.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_off0000dab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB0 17064 bytes
SHA-256: 69acd22a88ffca7b1a8df178768e15263a0a6cdcdf45ea16ae8e08c18fd51cb5
font_01_sfnt_off0001076b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1076B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F82 10764 bytes
SHA-256: 959cb015a4543be1fc3e4121e2473a0462520a99d838cbcb8aebc8dd5cbdcda8