Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b63f52c2ca1767c…

MALICIOUS

PDF

376.0 KB Created: 2022-01-18 15:55:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: c9a9b10a98e180e4ad315b50e3ea5f36 SHA-1: d10e9158cd71e5855ffef3b6830c082b98f26882 SHA-256: 2b63f52c2ca1767c49f66dd4548bf440f7c9fc20570cb6cb34ff34951630a20b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6486

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/79r5kjpkidolms3r1ndet6taos/35103819195.pdf In PDF document text
    • https://www.seblocation.com/ckfinder/userfiles/files/jarovub.pdfIn PDF document text
    • http://braghieriarchitettura.com/userfiles/files/38697016021.pdfIn PDF document text
    • http://airholic.com/UpFiles/WebEditorFiles/file/78866618075.pdfIn PDF document text
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/ea53a960fc7414e2dd68d32758033605/18923436671.pdfIn PDF document text
    • https://argentinaproduct.com/ckfinder/userfiles/files/lixawukoxaj.pdfIn PDF document text
    • https://hkpefa.org/editor_upload/file/lapuwadoponekugan.pdfIn PDF document text
    • https://5ky13lu3-1251.com/contents/files/49555556919.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161d07e8f67d9b---werej.pdfIn PDF document text
    • https://lixtech.com.tw/ckfinder/ckfiles/files/11974110794.pdfIn PDF document text
    • http://impactpluslearning.com/ckfinder/userfiles/files/pegigusaf.pdfIn PDF document text
    • https://recrutare.mapn.ro/admin/ckeditor/kcfinder/upload/files/Modelul%202.pdfIn PDF document text
    • https://ymvii.com/admin/upload/files/tazupuxifutudamomo.pdfIn PDF document text
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/gm6emeru16q4mbr4ilbe0t0p41/jefuzumiwikilasizaw.pdfIn PDF document text
    • https://cardolf.ro/files/40300319478.pdfIn PDF document text
    • http://flygarfield.net/userfiles/file/39978405487.pdfIn PDF document text
    • http://jandenzobv.com/image_uploads/file/gapuruworavawukorogibizi.pdfIn PDF document text
    • http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/vufumesafapatu.pdfIn PDF document text
    • http://www.ztc.hekko24.pl/panel/kcfinder/upload/files/xafefomuwa.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/37691608969.pdfIn PDF document text
    • http://belgium-ex.com/images/blog/file/86051949572.pdfIn PDF document text
    • https://valgott.com/images/userfiles/file/81111635847.pdfIn PDF document text
    • http://brukbet.com/user_images/file/mabevukajoluwubaxudate.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/Z3ufxtS7Wvw/uplcv?utm_term=cinta+luar+biasa+siti+nurhalizaPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55EDB 17272 bytes
SHA-256: af1509dadab52297e064f2b7ed8806000f9aea43433d5be0f166f5b21e792376
font_01_sfnt_off00058bf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58BF5 6444 bytes
SHA-256: 0c55abfd5283c472ed6d1eced640351dfdb85e5bdfdacb8fa2a42d4174c40180
font_02_sfnt_off0005a2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2FB 10284 bytes
SHA-256: 734d32f9caa1a68b509d842300511306d852a0b163c0bc96adb8ad5373732827
font_03_sfnt_off0005ba13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA13 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336