Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbec328666cd0377…

MALICIOUS

PDF

68.0 KB Created: 2021-09-06 12:10:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 10a169bf93918139b45f2e626766d987 SHA-1: 4ef5ff119b2cb6a9f583336fbea7900a792fbafd SHA-256: cbec328666cd0377883ebb76c6f4fa69f0e3e3f945d0bb39e208e5b5ce972f43
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://bernardthevenet.fr/ckfinder/userfiles/files/xurogobigidoninum.pdf In PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe5c29baa4c---biwetivupezimokamidi.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/xogafamewik.pdfIn PDF document text
    • https://balarampurblock.in/ckfinder/userfiles/files/rutinizasolekap.pdfIn PDF document text
    • https://westhygiene.hu/editor_up/88926219047.pdfIn PDF document text
    • https://drinkpoint.com/uploads/files/fowimigesajegaboxor.pdfIn PDF document text
    • http://bethtikvahevents.ca/clients/2/20/20a91c0cb94b02964b0d1c5d980f1596/File/dumize.pdfIn PDF document text
    • http://www.lnk-creation.fr/upload/file/fadopamidotujuku.pdfIn PDF document text
    • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090020967b83---darowomodutemir.pdfIn PDF document text
    • http://cardealer-space.com/js/upload/files/48032908735.pdfIn PDF document text
    • http://passaicvalleyclassof1957.com/clients/44362/File/20864853492.pdfIn PDF document text
    • http://dlevitin.ru/fck_editor_files/files/donevilerobojine.pdfIn PDF document text
    • http://normel.org/files/upload/file/49938635277.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/zotalejorirelawa.pdfIn PDF document text
    • https://nolimitscenter.be/peausitive/images/FCKeditor/file/73320724255.pdfIn PDF document text
    • http://jjkxmy.com/upload/files/202107231458114780.pdfIn PDF document text
    • https://hfdjet.com/wp-content/plugins/super-forms/uploads/php/files/d22df11ad41984d3ba8a2e5283d50413/powebakewigibi.pdfIn PDF document text
    • http://swaminarayangm.org/userfiles/file/31093305434.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609da05fe0a86.pdfIn PDF document text
    • http://refinerlink.com/userfiles/file/80238167647.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=el+factor+de+potencia+pdfPDF 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_off0000ad2e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ad2e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ad2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD2E 10428 bytes
SHA-256: 6a673a6da5413a4b861948f537fa78e47d9a53687cbb55dcd10461beeef771a0
font_01_sfnt_off0000c4dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4DC 15488 bytes
SHA-256: 8559f294f8bcab7d03cf6086aff925ef9e2d47f685527d0d2c0c9165f50c3016
font_02_sfnt_off0000eafe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAFE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1