Malicious PDF — malware analysis report

Static analysis result for SHA-256 191c9723582c980c…

MALICIOUS

PDF

75.7 KB Created: 2021-10-20 00:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 6ac6b28b0c705a9de8c0cec708fdb7fc SHA-1: f4a2de9a6cee3a127ff0f2eaa25d25c276250d5e SHA-256: 191c9723582c980c57d52bd848cde85656cb4d18df44c43786ed73b3c9ecc556
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615a09e307c9d---36943789734.pdf In PDF document text
    • https://jatransfer.com/userfiles/file/2225708057.pdfIn PDF document text
    • http://jcnjl.com/userfiles/files/logomiwewomujifomupob.pdfIn PDF document text
    • https://euronuts2009.ge/files/files/60802860635.pdfIn PDF document text
    • http://bellamy.tw/uploads/files/202109110103442387.pdfIn PDF document text
    • http://zbirozskepodzamci.cz/userfiles/wikajipit.pdfIn PDF document text
    • http://ateliergermain.net/sites/default/files/file/75308394299.pdfIn PDF document text
    • http://xedaphcm.com/luutru/files/dorusazidulonesibozapazag.pdfIn PDF document text
    • http://rambud.pl/uploaded/file/rutudebuxe.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614e30d31d8e7---61234097877.pdfIn PDF document text
    • http://goref.ru/files/file/tuxonilofut.pdfIn PDF document text
    • http://smartvoicecom.com/userfiles/gemobexaxusu.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1614cba27264ad---xisobijoxaloputelino.pdfIn PDF document text
    • http://veterina-hrib.cz/user-uploads/files/32097239500.pdfIn PDF document text
    • http://medicalproduct.hu/images/files/sozuzivu.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/4d66dd0356a60cd506b585f7ba641a02/70473488386.pdfIn PDF document text
    • http://pekingtogo.com/uploads/files/38266615351.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/j22pjsq23nf463r83sd8slgt2g/rozedotewelaj.pdfIn PDF document text
    • http://gomientrung.vn/uploads/image/files/purawul.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/e8cbf108fd9a309102a074e6d22fddc8/47281332416.pdfIn PDF document text
    • http://vidol.nl/userfiles/file/84169358808.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/BGAemAmcdTc/uplcv?utm_term=the+silver+eyes+%28five+nights+at+freddy%27s+graphic+novel+%231%29+pdfPDF link annotation
    • http://alessandrotria.altervista.org/areap/ckfinder/userfiles/files/selideg.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_off0000bf6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF6A 11156 bytes
SHA-256: 9cdac4263d33baea473582206ce36147e879b4e683ee24e95951948a42493430
font_01_sfnt_off0000d96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96C 17312 bytes
SHA-256: d5aa8b0efe4075af1b81c2dfacbcccaf24e15fd45766052cf6320a41efd7c24a
font_02_sfnt_off000106a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1