Malicious PDF — malware analysis report

Static analysis result for SHA-256 1911fcc5a3a55265…

MALICIOUS

PDF

95.8 KB Created: 2021-07-05 02:51:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: e1a0325c7d9c38e2ff4d0dc519748423 SHA-1: 022abb9beb50d4aa087050da310094e4ee742e94 SHA-256: 1911fcc5a3a55265e5762883eacc8737f1a1b04c5202e2b44f541e2511bbe24e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

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 https://wastran.ru/uplcv?utm_term=different+fonts+to+write+happy+birthday PDF link annotation
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/sucd59jret5ui3lqqosknd42m3/95235537266.pdfIn PDF document text
    • https://rubyyadav.com/nbloom/fckuploads/file/6534708213.pdfIn PDF document text
    • http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a443660da69---27990326367.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/adc8683a59889898cae40ccd34039b75/92459636574.pdfIn PDF document text
    • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/faea0981da24e16bffc64cc5e20f98b1/vupad.pdfIn PDF document text
    • https://clumba-indoor.ru/files/files/gumekozibuketile.pdfIn PDF document text
    • http://indianspringhomes.net/userfiles/files/kobebojefimumuravonoxife.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/fc50641b49baa3803808837307e8a18a/loguxegugukukinina.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5fa567819---36601345402.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/c74928a2b864654ddb3906cd5686f418/gidenarul.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/d46825fdc47fc3db4c8eb29b67dc7e7c/32804555.pdfIn PDF document text
    • http://starrsgazette.com/admin/images/file/30566464341.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609831b27bc6b---lorulidunepawusozomekixo.pdfIn PDF document text
    • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098979dac183---bibenolusatija.pdfIn PDF document text
    • http://arniestribu.com/campannas/file/xosodomolojewarelipug.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160862ab77653b---diwidowej.pdfIn PDF document text
    • http://lucavolpicella.it/userfiles/files/12025255026.pdfIn PDF document text
    • http://ucinnovation.ru/admin/ckfinder/userfiles/files/56378278045.pdfIn PDF document text
    • http://quangcaosms.org/media/ftp/file/30507211795.pdfIn PDF document text
    • http://karpatskiles.ru/store/files/6343082013.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/4v7lb4vkseg42ourtdeo3fhlk5/vebopakekojetemixebewa.pdfIn PDF document text
    • https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/44dffda63fbbf6dbf3b0d9ae8aabe696/59765331259.pdfIn PDF document text
    • http://agama-rc.com/upload/files/rotamemuxijajemobiwewamep.pdfIn PDF document text
    • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/nqggkbvcljd9mn097ncrlc7ji6/wudomafexirozokuvutalux.pdfIn PDF document text
    • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16083722999c82---zerusupekagiwumuwenabez.pdfIn PDF document text
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b7fdfecae2b---57090229042.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16095a8cb2deb0---ganebosexutexubusolobi.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_off000111be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111BE 10892 bytes
SHA-256: e8fd0f59439c25fe41b2279b6ef0c5b2af5338b77118055f44d22066bae14db9
font_01_sfnt_off00012aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ABA 17504 bytes
SHA-256: 719e54bff13309268b59b5011ceedebbefb2103c3c1f2299e939283ba741cce8
font_02_sfnt_off000157d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157D0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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