Malicious PDF — malware analysis report

Static analysis result for SHA-256 782cadaf882fde5b…

MALICIOUS

PDF

84.0 KB Created: 2021-08-16 06:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 7f9654a4b08cf380b63fe94f0bb0122c SHA-1: 1a19ad8a00f86f4f15c2a0c33561c811f4b0b59f SHA-256: 782cadaf882fde5b9d0a0032c875e6de87a608b565a6041aaa4e4e650d48f452
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://interel-rus.ru/test/sites/default/files/file/niwizevivogebidi.pdf In PDF document text
    • https://bliznacite.com/files/38357929171.pdfIn PDF document text
    • http://ultraljud.nu/bild/files/nenof.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/oif6of9drefocoplm9sls8a1qf/49656338044.pdfIn PDF document text
    • https://asharfilalkulfi.com/ckfinder/userfiles/files/88518581307.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/7kv9k1ch12t5sjkun5a7qh6da6/26864691565.pdfIn PDF document text
    • http://beateromer.com/bilder/file/begokaxap.pdfIn PDF document text
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/fdc12ae04d58c5be5f03f0b864ffeabd/2712287538.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/16fg6jcagbu4mdtgo7edqn5mct/60889974838.pdfIn PDF document text
    • http://plusk-car.com/js/upload/files/negafatumevibo.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/86103708285.pdfIn PDF document text
    • http://brilliantsolarpaneling.com/userfiles/file/wezorupemekut.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da790a8944---pinir.pdfIn PDF document text
    • http://citra.cl/userfiles/file/45482670832.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27bb82c3f7---zafedoxafudoburifimepel.pdfIn PDF document text
    • https://bandotrading.com/uploads/file/12607547996.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6895374d6d---gadupaxikaja.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/14599970466.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606efb41e3cab---92508512119.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/9706c1d6ed3cd5e9bddd921cab7cd872/vujokopiwofesokogu.pdfIn PDF document text
    • http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/mobapuviwawewo.pdfIn PDF document text
    • https://multimetrics.com/ckfinder/userfiles/files/sibumu.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098ef8f47f40---tarexi.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb2ef4f853---melojonimokiz.pdfIn PDF document text
    • http://extrastyle.ee/ckfinder/userfiles/files/21602769035.pdfIn PDF document text
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/dv9vlc43jkdjf2ltnpnqjv914v/92683692616.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=elite+cuisine+hard+boiled+egg+instructionsPDF 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_off0000e589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE589 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA0 10872 bytes
SHA-256: 2021f9da7a41989237a990e66ce21365e20303c3c13691ff5c56d439327a46f7
font_02_sfnt_off00011665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11665 16748 bytes
SHA-256: dae13b855c40e0dec2903d3a0f14f4d42e83341bea9b30752d85a755d5cd7ea5