Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7bd5a8d52e4e68…

MALICIOUS

PDF

86.6 KB Created: 2021-08-14 06:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 1cd58d02bb233782128e7de9669bfd57 SHA-1: 0b33782565a562d6b5ad3952f9e2c4b4e863e446 SHA-256: cd7bd5a8d52e4e688d422c6079f9b2024d208c6e1e3c32e561b4d2c03cfeeb68
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://pomodorolennep.de/gfx/userfiles/files/dutegaxobuwapidom.pdf In PDF document text
    • http://generale-bureautique.fr/gdb/files/file/gunozizasebazura.pdfIn PDF document text
    • https://consultingexpert.eu/fckeditor/userfiles/file/23467524364.pdfIn PDF document text
    • https://www.idd.no/ckfinder/userfiles/files/tojifizagasidexidi.pdfIn PDF document text
    • https://diarch.in/WYSIWYGImage/file/podananamogasepon.pdfIn PDF document text
    • http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076efa63bf4d---47402059257.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adc60896e45---81751762348.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160cab3f6902e8---96390143149.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083bafaa2b0d---tepubofi.pdfIn PDF document text
    • http://toyteepee.com/uploadfiles/file/2105191938291864640twpmr.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cff251dfe9---xaxotimororixazibema.pdfIn PDF document text
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/1b4f30739f2cca19f32bb99fcbf66885/nejevizilakiwivexebinip.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a980ac06ee7---visasekowiruseribaduna.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6c120acec---85735581644.pdfIn PDF document text
    • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160905f4f52b53---zabalimodojan.pdfIn PDF document text
    • https://cpsguffanti.com/uploads/file/87019439322.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/60eb406a9f9db482ae00699f80113d43/jizotoxaboxutulirenu.pdfIn PDF document text
    • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/lumibiwogorikezune.pdfIn PDF document text
    • http://broadgatecapital.com/userfiles/file/27469208139.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607a646db825f---58056202768.pdfIn PDF document text
    • https://777mto.info/contents//files/44873877185.pdfIn PDF document text
    • http://chiangmai-clean.com/user_img/files/8206129851.pdfIn PDF document text
    • https://mccartha-cobb.com/userfiles/files/34886802868.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088dcec2bd79---xigimofofalozevil.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/2ec64ed9f7d4c469406f01b647be21c2/jomenizidudo.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/t33is4qetrkm8ubf9j8qrbiumk/durimasuxad.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=pdf+to+word+converter+apk+crackedPDF 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_off0000ef26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF26 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10738 17252 bytes
SHA-256: 85fc28698017c0178ffd9a6e167fb432de6cf17aae32af4ae1c87cf0b841ded4
font_02_sfnt_off00013462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13462 10552 bytes
SHA-256: 03fdc13a6ae50b8db4767a3d81aff6dc2d0de5bb8e537c6c08f40af074551698