Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddde9790689384dd…

MALICIOUS

PDF

82.2 KB Created: 2021-11-02 07:24:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-16
MD5: 9cb3f774b332e473948a29c50ef117a3 SHA-1: 05cb6254bda9d9a88562c4ab1f9e31f6fcf80d32 SHA-256: ddde9790689384ddc07bdebedaadf702cb15a78198480f698c14d3e4a2d41f0f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://topclassgreenery.nl/images/file/30338977234.pdf In PDF document text
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/pn9cql5in1jl2po6hfur975o9f/wiluxifezinu.pdfIn PDF document text
    • http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/nukogu.pdfIn PDF document text
    • http://sarafis.pl/img/userfiles/file/73834015535.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/v6sri9c8vopk66aocnb3b4repk/59882393207.pdfIn PDF document text
    • https://mayphotocopydogia.com/upload/files/daladudijeje.pdfIn PDF document text
    • https://grupa-energia.pl/attachments/file/xadimuxanejoxu.pdfIn PDF document text
    • http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/44533131970.pdfIn PDF document text
    • http://beergolfers.com/blog/images/file/fukixagi.pdfIn PDF document text
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16132a29990c3c---50753043439.pdfIn PDF document text
    • https://aarushimukhwas.idealviews.com/userfiles/files/vaxufi.pdfIn PDF document text
    • http://coolscape.info/images/files/13491071921.pdfIn PDF document text
    • http://fcraregistration.com/UploadedData/file/modifotaxesigixomal.pdfIn PDF document text
    • http://cocoabuterol.com/upload/files/46148353856.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/gigudotabegiditinadeke.pdfIn PDF document text
    • https://people11people.gr/uploads/File/mikupakam.pdfIn PDF document text
    • http://herbier.musee-oberlin.com/img_db/pumavuxometegifuzasepav.pdfIn PDF document text
    • https://securincasso-online.nl/ckfinder/userfiles/files/69681085597.pdfIn PDF document text
    • http://portalinmobiliario24.com/uploades/fckeditorfile/75998689370.pdfIn PDF document text
    • http://signauction.net/userfiles/file/55966097126.pdfIn PDF document text
    • http://hanleyresources.com/images/54794170404.pdfIn PDF document text
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/lmalgfc5f4jpcsr02637ggjmnd/48734959430.pdfIn PDF document text
    • http://konstruktor33.ru/app/webroot/files/files/nirewosaditixupokoruzuzem.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/Z3ufxtS7Wvw/uplcv?utm_term=all+those+years+ago+lyrics+meaningPDF 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_off0000d961.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d961.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD961 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF178 10772 bytes
SHA-256: 77be3da3083bc8b1ee918faf1f2556a2eecc3f4fcaf8f35b3f3cca42f085d9b8
font_02_sfnt_off00010a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A28 18036 bytes
SHA-256: d8a02b301dcc2e98c82a2075eb7cc5778e9e16d9247586154924604a2dda5478