Malicious PDF — malware analysis report

Static analysis result for SHA-256 f878c832ecfd22d7…

MALICIOUS

PDF

178.6 KB Created: 2022-02-02 16:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 11b08feecb69165e82be653c75246123 SHA-1: e404cf38c394decb2a3626e8ba34ece8291e1a78 SHA-256: f878c832ecfd22d79724f7b727b33a569931b5c8ef9ab360a7cb01d6289d5869
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9381

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://lovig.co.za/XSRYdR1H?utm_term=kyrgyzstan+range+crossword+answer PDF link annotation
    • http://i-physiology.ru/upload/magibuvuwew.pdfIn PDF document text
    • http://nhuaduongnhapkhauaz.com/upload/files/fimubunekezalajasajokabab.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/64495218169.pdfIn PDF document text
    • http://premiosgrupomora.com/campannas/file/birepetawemunili.pdfIn PDF document text
    • http://ccsl.asia/files/49877944645.pdfIn PDF document text
    • https://epgeptech.hu/ckfinder/userfiles/files/64448275165.pdfIn PDF document text
    • https://luminex.pl/upload/file/fopen.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/60evuebu30csa61oc3g224krkd/bijokufurolisuvugegeb.pdfIn PDF document text
    • http://arredamentoambienti.it/img/file/15894448511.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/lveuc2on85rescv2hgohvi2lat/tisukegapamev.pdfIn PDF document text
    • http://go-pxl.com/uploads/files/paxatenofobagapawoj.pdfIn PDF document text
    • http://pi-consulting.ch/download/nubasawiragofukob.pdfIn PDF document text
    • https://simpeg.unsam.ac.id/kcfinder/upload/files/lezasubiluxidu.pdfIn PDF document text
    • https://biserica-izvorul-tamaduirii.ro/files/39534613350.pdfIn PDF document text
    • https://www.willmarareachamber.com/ckfinder/userfiles/files/nepiparomewudapapub.pdfIn PDF document text
    • http://feg.vn/uploads/files/49050729313.pdfIn PDF document text
    • https://astek-telem.fr/userfiles/file/vatuxupefibujomirogotusa.pdfIn PDF document text
    • http://chuanghuilaw.com/filespath/files/20210814134717.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/c50f30684754a6672b986ed2022f9996/21606475656.pdfIn PDF document text
    • http://lagunaapartman.hu/images/user/file/64682952115.pdfIn PDF document text
    • https://appchecar.com/ckfinder/userfiles/files/dipojipuganusinakodulameb.pdfIn PDF document text
    • https://eco-translation.ca/upload/editor/file/84044275896.pdfIn PDF document text
    • http://helenhotel.vn/upload/files/51861180286.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/gf3alc49kr45l8f2m043btdbe7/pejasedesunirolud.pdfIn PDF document text
    • https://samoinstitute.samoinstitute.mn/uploads/assets/file/zavawexazovibamaxiluwij.pdfIn PDF document text
    • http://jindi2010.com/uploadfile/files/5892315339.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1617ea6a208d8c---sonamoliveduwuzorozagin.pdfIn PDF document text
    • https://gryf-wet.pl/ckfinder/userfiles/files/73388335631.pdfIn PDF document text
    • http://bilcafe.it/userfiles/file/zibuzaf.pdfIn PDF document text
    • http://tiwtactic.com/userfiles/files/10430485727.pdfIn PDF document text
    • http://kiszelyugyvediiroda.hu/docs/file/56792321674.pdfIn PDF document text
    • https://www.adom.biz.pl/ckfinder/userfiles/files/diroveseturoxip.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/rivupuripokexubatawodixiz.pdfIn PDF document text
    • http://inbjnews.com/data/cheditor/0603/files/3797046503.pdfIn PDF document text
    • http://agecarekorea.com/ckupload/files/71287776147.pdfIn PDF document text
    • https://cliniquemyo.com/userfiles/file/72239983340.pdfIn PDF document text
    • https://www.zochrot.org/ckfinder/userfiles/files/17780783123.pdfIn PDF document text
    • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/31513641457.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616270648c930---juwujalexiwadunaziwe.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_off00025f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25F84 17284 bytes
SHA-256: 00fc6329adccd9f5dc059127c573ed7b64078635912e04f9a16ca941d9f6ac37
font_01_sfnt_off00028b68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28B68 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002a288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A288 10660 bytes
SHA-256: 1b6ef7671c1d29059edf20fe229545c580287d4bc391cd247028a2080bed50b9

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