Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3e60ded37dd211…

MALICIOUS

PDF

71.1 KB Created: 2021-09-09 04:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: c144420deac120cf76d5465d6b5b4ae4 SHA-1: 638179b5cd648590f281aed4bc29f4115ec52772 SHA-256: 0d3e60ded37dd211589c97fe2cbc2982020571bcf024a27c54593d3205c93b09
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://wastran.ru/uplcv?utm_term=quadratic+root+calculator+online PDF link annotation
    • http://sipsak.nl/userfiles/file/90165983981.pdfIn PDF document text
    • https://alaqart.atelierleuthold.ch/userfiles/files/bigaponetanizosiresubodo.pdfIn PDF document text
    • https://www.tcf.gov.tr/ckfinder/userfiles/files/24679833162.pdfIn PDF document text
    • https://afayl.com/userfiles/file/42472663390.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/lixoxagojazovapikobatu.pdfIn PDF document text
    • http://www.gpkoaee.ru/ckfinder/userfiles/files/perawodaxodixu.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/161362e64b8d8c---98338190320.pdfIn PDF document text
    • http://telektrans.hu/editor_up/bobidizugowimenojitopu.pdfIn PDF document text
    • http://lubrifianti-auto.ro/files/file/66117526994.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/37443585359.pdfIn PDF document text
    • https://toananhmedical.com/uploads/files/2414216453.pdfIn PDF document text
    • https://www.aledrukujemy.pl/ckfinder/userfiles/files/pifabibukezojus.pdfIn PDF document text
    • http://regimhotelierbucuresti.com/images/userfiles/vorutopomenekeginiba.pdfIn PDF document text
    • https://excore.hu/ckfinder/userfiles/files/31614129539.pdfIn PDF document text
    • https://extremedriveline.com/ckfinder/userfiles/files/999765280.pdfIn PDF document text
    • https://octvads.site/js/ckfinder/userfiles/files/47944537164.pdfIn PDF document text
    • https://www.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/nedotivef.pdfIn PDF document text
    • http://haai.org/upload/file/80595898986.pdfIn PDF document text
    • http://nj-rshb.com/v15/Upload/file/20219405559131.pdfIn PDF document text
    • https://millersexpress.com/userfiles/file/57723430862.pdfIn PDF document text
    • https://awinresource.com/uploadfile/file/fitatateralodenu.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613316e6d6353---27117229025.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133a57c6409c---taxefopotino.pdfIn PDF document text
    • https://bhandarisurgical.com/ckfinder/userfiles/files/pupopulopirevolowa.pdfIn PDF document text
    • http://imosa.asia/uploads/files/202109060011525445.pdfIn PDF document text
    • http://123podkrovie.sk/editor_uploads/files/67959704882.pdfIn PDF document text
    • http://telesson.net/_UploadFile/Images/file/gomopokepekifosasuxan.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_off0000b92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB92C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD143 10356 bytes
SHA-256: 130e3415a4b317c5b52c380f13e0a3f1db519d449af8817255ae7ae826729133
font_02_sfnt_off0000e8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CB 14916 bytes
SHA-256: 6997ebb33cf861ac2ecfb25c86b5c3e4b1d7682e3b986b8c278e8f067f2c4e4f