Malicious PDF — malware analysis report

Static analysis result for SHA-256 25821d2955c9fbe6…

MALICIOUS

PDF

76.5 KB Created: 2022-05-02 03:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 9a03358ffc1291bd63fad44b3f4d1a79 SHA-1: a8dd6a3f010372f182a5e1a25809d0a91d72d8a8 SHA-256: 25821d2955c9fbe671e92fd9fd236e33429724c0e54f7f71b513f85446f03054
151 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://navigator-nsk.ru/userfiles/file/busuluxiworokig.pdf In PDF document text
    • http://minuspk.ru/minuspk.ru/userfiles/file/74706982719.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/xavanazetaxatujufat.pdfIn PDF document text
    • https://infinity-c-t.com/userfiles/file/somunebarel.pdfIn PDF document text
    • https://saksisan.com/upload/ckfinder/files/sogowemiruvisarenidelura.pdfIn PDF document text
    • http://camberwelltaxi.com/survey/userfiles/files/kosot.pdfIn PDF document text
    • https://sesumevikenaful.weebly.com/uploads/1/3/5/3/135346106/doxuregeli.pdfIn PDF document text
    • https://wilibupa.weebly.com/uploads/1/3/2/6/132681560/9240970.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161fe39a78e0f4---wikep.pdfIn PDF document text
    • https://kejifesabateg.weebly.com/uploads/1/3/4/8/134847793/witusulaje.pdfIn PDF document text
    • https://rerigasudete.weebly.com/uploads/1/3/4/4/134498455/xadulexivo_tararolekopajub_siwomibota_sizujeben.pdfIn PDF document text
    • https://bepupoxusiboma.weebly.com/uploads/1/3/4/8/134847186/7143688.pdfIn PDF document text
    • https://sijodeteketede.weebly.com/uploads/1/3/4/4/134486162/6859723.pdfIn PDF document text
    • https://nodizolubuta.weebly.com/uploads/1/3/5/2/135297944/4505480.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1622b7dd2cca1e---pijefemaga.pdfIn PDF document text
    • https://tresonance.org/uploadfiles/zojanofofod.pdfIn PDF document text
    • https://kitupiver.weebly.com/uploads/1/3/4/4/134446404/4430347.pdfIn PDF document text
    • http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/63337392032.pdfIn PDF document text
    • https://mojipakubi.weebly.com/uploads/1/3/4/6/134679558/5778720.pdfIn PDF document text
    • http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/56985636639.pdfIn PDF document text
    • http://rayocazar.com/images/elfinder-1.1/files/file/69075786425.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=rerum%20novarum%20pdf%20italianoPDF 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 extracted file (font_00_sfnt_off0000c4b4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c4b4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B4 10700 bytes
SHA-256: 3d21c090079b64544195e84cf5f0537af476705433a61dd6f756d333b269f8cd
font_01_sfnt_off0000dd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD36 18484 bytes
SHA-256: 158cd814b6708c5cb04dbcef5d9e2a86c43d5b372160649a6acc506a965039b9
font_02_sfnt_off00010c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1