Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e311302d901ee73…

MALICIOUS

PDF

72.6 KB Created: 2021-09-05 01:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 9e027db6430cef20b4fdc7ff33401ed4 SHA-1: 0f4058dfdf0e8d47a7eaf495f2850ba425fef49d SHA-256: 4e311302d901ee73b9a94ec308f3bfde476a54c627cbe037ccfa20156318f0b8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/85d6icv1ejlhbibv3tm0huef45/kikofinugi.pdf In PDF document text
    • http://fotossc.pl/_files/file/xipepakabosenogigafi.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac370aab11a---18914745030.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/p4vouvhchs59op77gem72hpno0/76483447953.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160fd0cb60438e---fuzokukakefurulibafa.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b51b0abfc---bozekoroju.pdfIn PDF document text
    • https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/4375f271e25335d9d9264fc8ccd0f8b7/86636009700.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608cdd726b6e5---39646714896.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098d8306ab81---75622985868.pdfIn PDF document text
    • https://twr1115.net/files/fckeditor/file/berezinukujusazug.pdfIn PDF document text
    • https://berbagiangka.com/contents//files/vevijadupabesila.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/jbitf7uslk2h0kvutl6g6in0ic/51245212636.pdfIn PDF document text
    • http://bioident.pl/photos_fck/file/64044925825.pdfIn PDF document text
    • https://seripin.com/calisma2/files/uploads/56583117853.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160981796d4da9---tejalekitoxavotu.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aac37acfec---wopuzukixabowoda.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092114211bd0---lotusegomusivetexuxarirak.pdfIn PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0ee63c57c---13043272183.pdfIn PDF document text
    • https://plasy.com/uploads/file/45292605367.pdfIn PDF document text
    • http://alphabodysupplements.com/newerac2c/userfiles/file/kejewumesifaloduxu.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16118f7dbd34f5---39678952518.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/c78af0a92b06737bfa9412089b780803/dikasutotopuremuxoraku.pdfIn PDF document text
    • https://sklep-pinokio.pl/web/uploads/files/64318878851.pdfIn PDF document text
    • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161253595c1bdb---xanalaravolut.pdfIn PDF document text
    • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb24f4d2f9---42952157572.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=nearer+my+god+to+thee+pdf+violinPDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA56 10932 bytes
SHA-256: 04c03f207138fa6176677a66e2ee00504365f09013bf83b879ef428432f07a28
font_01_sfnt_off0000d348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD348 16296 bytes
SHA-256: b3561e28f93440a6dfe0d62641f9deab50ac4750e6c9b6633eb2fed4d6500f1a
font_02_sfnt_off0000fcdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCDB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1