Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07a8cfa690af82f…

MALICIOUS

PDF

170.5 KB Created: 2022-02-06 08:17:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: e0e864a5291b62dd5e6f116ee968e52d SHA-1: 9d413ed02ab2c1ebc52251829ea09874c86a881e SHA-256: d07a8cfa690af82fefe7d9cea4b2114e0e478f9a22f2d803396cd5c791e21581
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7194

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://themis-lex.com/userfiles/files/85646121720.pdf In PDF document text
    • http://shengnabei.com/uploadfile/file///2021082503505779.pdfIn PDF document text
    • https://ontogepszerviz.hu/editor_up/20937777151.pdfIn PDF document text
    • https://spitalmoldovanoua.ro/ckfinder/userfiles/files/63230933291.pdfIn PDF document text
    • https://edarky.net/data/file/xewukuxatefeketeg.pdfIn PDF document text
    • https://southernwashpros.com/nbloom/fckuploads/file/23647842615.pdfIn PDF document text
    • http://grotech.in/userfiles/file/35635724823.pdfIn PDF document text
    • http://springgalleryng.com/Images_upload/files/datemerilawajidar.pdfIn PDF document text
    • https://niboparis.com/upload/fckeditor/files/92579620023.pdfIn PDF document text
    • https://www.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/65918088627.pdfIn PDF document text
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/47c3037d8a7073d2e65eca25698d4a89/xasipevosokekeb.pdfIn PDF document text
    • http://www.solarwindependence.com/ckfinder/userfiles/files/87087309660.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161833f557712d---36740129434.pdfIn PDF document text
    • https://adurucui.com/ckfinder/files/3898393621.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/696cd527f0f6423f11a0e33ce05817e6/73637081357.pdfIn PDF document text
    • http://stoewebdesign.no/userfiles/file/tisojipo.pdfIn PDF document text
    • http://sungsam.net/userData/board/file/tegixoxagipov.pdfIn PDF document text
    • https://marathonblainville.com/userfiles/files/gididalagitadiludubuja.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135e17059d1a---27702404952.pdfIn PDF document text
    • http://bachova-terapia.sk/images/file/kepaniwog.pdfIn PDF document text
    • http://thueotodn.com/uploads/image/files/91005735444.pdfIn PDF document text
    • http://world-housing.jp/ckfinder/userfiles/files/xevimawetosefudiwilu.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1611a49c5bbbac---jawibizaxunipazupoganowok.pdfIn PDF document text
    • http://aaronandanthony.com/userfiles/files/pifuwapupilojunidofoke.pdfIn PDF document text
    • https://santehsevast.ru/userfiles/files/65245195306.pdfIn PDF document text
    • https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/lezul.pdfIn PDF document text
    • http://skolicka.eu/foto/images/file/biwuwirerunogavaj.pdfIn PDF document text
    • http://bandwidth.aryanpalace.com/userfiles/file/notaxuguminotefelubet.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b4615c335ec---misap.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/99363752795.pdfIn PDF document text
    • https://joinvita.com/neu/userfiles/file/xofedujibitixefuv.pdfIn PDF document text
    • https://zabulgaria.org/userfiles/file/moteguwinu.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/f6699026e93d2c9484b8c4de01e60585/66552858446.pdfIn PDF document text
    • http://homeloanz.net/images/e/file/17368658340.pdfIn PDF document text
    • https://nsck-cykelmotion.dk/ckfinder/userfiles/files/xeteza.pdfIn PDF document text
    • http://jandebruijn.com/uploadimages/files/vukewivepofaziko.pdfIn PDF document text
    • http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/67700669169.pdfIn PDF document text
    • http://joltiy.ru/uploads/files/tawip.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=berkshire+partners+email+formatPDF 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 extracted file (font_00_sfnt_off00023ee4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00023ee4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23EE4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000255ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x255FF 16572 bytes
SHA-256: f606cb9ef83013025bcd671c9e32bdafa3b1b4387cefd2bf47be79c76d51e4c7
font_02_sfnt_off0002812c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2812C 10768 bytes
SHA-256: 934f2bb09977c9f7c38627d7b1321fadcf411da9f13564662df8607c0751df08